CN213636317U - Insulating tubular busbar joint device based on melting area - Google Patents

Abstract

An insulating tubular busbar joint device based on a melting area comprises a melting body (3) which is arranged between a first insulating tubular busbar (1) and a second insulating tubular busbar (2) and is used for butting the first insulating tubular busbar (1) and the second insulating tubular busbar (2), and a wrapping component which is arranged between the first insulating tubular busbar (1) and the second insulating tubular busbar (2) and is used for protecting the first insulating tubular busbar (1) and the second insulating tubular busbar (2).

Description

Insulating tubular busbar joint device based on melting area

Technical Field

The utility model relates to an insulating cast generating line piecing devices, especially an insulating cast generating line piecing devices based on melting region.

Background

In order to meet the increase of the main transformer capacity, the rated current of the low-voltage side wiring side of the transformer is also increased continuously, so that the insulating tubular bus is widely applied to a power system,

in the initial stage of application of the insulated tubular bus, due to the fact that the technology is immature and unstable, and particularly in the middle connection position, the quality problem frequently occurs, the quality problem is the weak point, the quality problem is from the step of manually wrapping the insulated shielding cylinder to the step of cold shrinking the middle joint, but problems of equipotential failure, low mechanical strength and the like frequently occur, the structure of the middle connection is important, and an insulated tubular bus joint device based on a melting area is not provided at present, so that the mechanical strength of the insulated tubular bus joint is improved, the equipotential failure phenomenon is prevented,

the technical scheme of the invention is made based on the technical problems, technical features and technical effects in the technical background of the applicant.

Disclosure of Invention

The object of the utility model is an insulating cast generating line piecing devices based on melting zone territory.

In order to overcome the technical defects, the utility model aims to provide an insulating tubular busbar joint device based on melting zone territory, consequently improved the mechanical strength of insulating tubular busbar joint.

In order to achieve the purpose, the utility model adopts the technical proposal that: the device comprises a melt arranged between a first insulating tubular busbar and a second insulating tubular busbar and used for butting the first insulating tubular busbar and the second insulating tubular busbar, and a wrapping component arranged between the first insulating tubular busbar and the second insulating tubular busbar and used for protecting the first insulating tubular busbar and the second insulating tubular busbar.

Due to the fact that the melting body and the wrapping component are designed, the butt joint of the first insulating tubular bus and the second insulating tubular bus is melted and filled and connected through the melting body, and cable jacket protection is carried out on the butt joint of the first insulating tubular bus and the second insulating tubular bus through the wrapping component, and therefore mechanical strength of the insulating tubular bus joint is improved.

The utility model discloses a, according to the butt joint to first insulation tubular busbar and second insulation tubular busbar dissolve with the mode of filling the connection link each other the melt and parcel part.

The utility model designs a, according to the welding current form dissolve with the mode of obturator couple the melt and parcel part.

The utility model discloses a, parcel part sets up to include shield cover, interior shielding pipe, joint insulating layer, joint stress cone and outer shielding layer.

The utility model discloses a, still include first annex device and first annex device sets up between first insulation cast generating line and second insulation cast generating line, and first annex device sets up to including inside lining core and separation sleeve.

The utility model discloses a, still include second annex device and second annex device sets up between first insulation cast generating line and parcel part, and second annex device sets up to including braided wire and constant force spring.

The utility model discloses a, be provided with the melt respectively between first insulation tubular busbar and the insulating tubular busbar of second, inside lining core and shield cover, inside lining core and first insulation tubular busbar, be provided with the separation cover between insulating tubular busbar of second and the melt and be provided with the braided wire respectively between shield cover and first insulation tubular busbar and the insulating tubular busbar of second, constant force spring and internal shield pipe, be provided with respectively between internal shield pipe and first insulation tubular busbar and the insulating tubular busbar of second and connect the insulating layer, connect stress cone and outer shielding layer.

The utility model relates to a copper pipe end of a first insulation tubular bus and a copper pipe end of a second insulation tubular bus are respectively arranged to be connected with a melt body, the copper pipe inner wall of the first insulation tubular bus and the copper pipe inner wall of the second insulation tubular bus are respectively arranged to be connected with an inner lining core and an isolation sleeve, the copper pipe outer side surface of the first insulation tubular bus and the copper pipe outer side surface of the second insulation tubular bus are respectively arranged to be connected with a braided wire, a constant force spring and a shielding case, the insulation layer end of the first insulation tubular bus and the insulation layer end of the second insulation tubular bus are respectively arranged to be connected with the shielding case, the insulation layer outer side surface of the first insulation tubular bus and the insulation layer outer side surface of the second insulation tubular bus are respectively arranged to be connected with an inner shielding pipe, the joint insulating layer, the joint stress cone and the outer shielding layer are connected, and the first insulating tubular bus and the second insulating tubular bus are respectively arranged to be buses with copper pipes.

The utility model discloses a, the melt sets up to the coagulation body of copper powder and welding agent and the melt sets up to copper pipe end with first insulation tubular busbar and the copper pipe end surrounding type hookup of second insulation tubular busbar.

The utility model discloses a, be provided with annular groove body and annular groove body sets up to coupleing with the separation sleeve at the outside face of the core 41 of inner liner core, and one of them end of the outside face of core 41 sets up to coupleing with first insulation tubular busbar and wherein another end of the outside face of core 41 sets up to coupleing with second insulation tubular busbar, and core 41 sets up to the circular cylinder body of stainless steel and annular groove body sets up to U font annular groove body.

The utility model discloses a, the spacer sleeve sets up the circular cylinder body of constituteing by two graphite arcs and the inner wall of spacer sleeve sets up to coupleing with inside lining core, and the outer wall intermediate part of spacer sleeve sets up to coupleing with the melt and one of them end of the outer wall of spacer sleeve sets up to coupleing with first insulation tubular busbar, and wherein another end of the outer wall of spacer sleeve sets up to coupleing with second insulation tubular busbar.

The utility model discloses a, the braided wire sets up to the braided wire of tin-plated copper and the inner end setting of braided wire is between the copper pipe of first insulation tubular busbar and constant force spring, the inner end of braided wire sets up respectively to the copper pipe and the constant force spring hookup of first insulation tubular busbar and the outer end setting of braided wire is to hookup with the shield cover.

The utility model discloses a, constant force spring set up to the copper pipe suit formula hookup with first insulation tubular busbar and the medial surface portion of constant force spring sets up to hookup with the braided wire.

The utility model relates to a, the shield cover is set as a circular cylinder body composed of two aluminum alloy arc plates and the ends of the arc plate part of the shield cover are respectively provided with a pin hole body, the inner side surface part of one end of the arc plate part is set to be connected with a braided wire through a screw and the outer side surface part of the end of the arc plate part is set to be connected with the insulating layer of a first insulating tubular bus and the insulating layer of a second insulating tubular bus, the inner wall of the end of the arc plate part is set to be connected with the copper pipe of the first insulating tubular bus and the copper pipe of the second insulating tubular bus and the outer wall of the end of the arc plate part is set to be connected with an inner shielding pipe, the pin hole body of one arc plate part is set to be connected with the pin hole body of the other arc plate part through a pin shaft and the arc plate part is set to be a curved piece with a through hole body at the middle, the screw is set to be a countersunk bolt.

The utility model discloses a, interior shielding pipe sets up to the shield sleeve who is woven by the polyester multifilament and the inner wall intermediate part of interior shielding pipe sets up to coupleing with the shield cover, and one of them end of the inner wall of interior shielding pipe sets up to coupleing with first insulation cast generating line and wherein another end of the inner wall of interior shielding pipe sets up to coupleing with second insulation cast generating line, and interior shielding pipe sets up to and connects the embedded hookup of insulating layer.

The utility model discloses a, the joint insulating layer sets up to the siphonozooid and the joint insulating layer sets up respectively to be connected with first insulation tubular busbar, the insulating tubular busbar of second, the internal shield pipe, connect stress awl and the hookup of outer shielding layer appearance formula, the inner wall intermediate part of joint insulating layer sets up to be connected with the internal shield pipe and one of them end of inner wall of joint insulating layer sets up respectively to be connected and the insulating tubular busbar of first insulation, connect stress awl and outer shielding layer hookup and the insulating layer's of joint inner wall wherein another end sets up to be connected with the insulating tubular busbar of second, connect stress awl and outer shielding layer.

The utility model discloses a, connect the stress cone and set up to cable joint stress cone and connect the stress cone and set up to and connect the embedded hookup of insulating layer, the lateral surface portion that connects the stress cone sets up to hookup with outer shielding layer.

The utility model discloses a, outer shielding layer sets up to the box-like body and the outer wall of outer shielding layer sets up respectively to coupleing with joint insulating layer and joint stress cone, and the inner wall of one of them outer shielding layer sets up to coupleing with first insulation tubular busbar and wherein the inner wall of another outer shielding layer sets up to coupleing with second insulation tubular busbar.

The utility model discloses a, first insulation tubular busbar and second insulation tubular busbar set up to distribute according to the mode of filling being connected and first insulation tubular busbar and second insulation tubular busbar and melt and interior lining core and separation sleeve set up to distribute according to the mode of interior support, first insulation tubular busbar and second insulation tubular busbar and melt and shield cover, interior shield tube, joint insulating layer, joint stress awl and outer shielding layer set up to distribute according to the fixed mode of parcel and first insulation tubular busbar and second insulation tubular busbar, the melt, the shield cover, interior shield tube, joint insulating layer, joint stress awl and outer shielding layer and braided wire and constant force spring set up to distribute according to the mode of equipotential processing, the central line of first insulation tubular busbar, the central line of second insulation tubular busbar, the central line of melt, The central line of the inner lining core, the central line of the isolation sleeve, the central line of the constant force spring, the central line of the shielding cover, the central line of the inner shielding pipe, the central line of the joint insulating layer and the central line of the outer shielding layer are arranged on the same straight line.

The utility model discloses a, the exothermic welding set who makes the melt includes first graphite electrode, second graphite electrode, first connecting plate and second connecting plate and is provided with first connecting plate and second connecting plate respectively between first graphite electrode and second graphite electrode.

The utility model discloses a, first graphite electrode sets up to T font barred body and is provided with uncovered cavity in the extension portion of first graphite electrode, be provided with runner hole body and runner hole body's last port portion at first graphite electrode's constriction portion and set up to communicate with uncovered cavity, runner hole body's lower port portion sets up at first graphite electrode's constriction portion lower extreme terminal surface portion and one of them side portion of first graphite electrode's constriction portion sets up to hookup through bolt and first connecting plate, wherein another side portion of first graphite electrode's constriction portion sets up to hookup through bolt and second connecting plate and runner hole body and uncovered cavity set up respectively to circular port-shaped body.

The utility model discloses a, second graphite electrode sets up to interior end has the barred body of arc plush head and one of them side portion of second graphite electrode sets up to hookup through bolt and first connecting plate, and one of them side portion of second graphite electrode sets up to hookup through bolt and second connecting plate.

The utility model discloses a, first connecting plate and second connecting plate set up respectively to the platelike body that has the through-hole body and one of them end of first connecting plate and one of them end of second connecting plate set up respectively to be linked to through bolt and first graphite electrode, and wherein another end of first connecting plate and wherein another end of second connecting plate set up respectively to be linked to through bolt and second graphite electrode.

The technical effects of the utility model reside in that: the butt joint of the two copper pipe conductors is welded into a whole by adding welding powder into a graphite mould to perform heat release welding, the copper pipe conductors are recovered, the mechanical strength is greatly increased, the stainless steel lining core is of a hollow structure, the air convection and heat dissipation effects are good, the stainless steel lining core has the function of increasing the mechanical strength and the supporting function of the copper pipe, the high-purity graphite lining is embedded into the outer surface of the stainless steel lining core, and is used as a high-temperature resistant material to insulate the stainless steel lining core during heat release welding, so that the stainless steel lining core is prevented from being melted and copper water is prevented from entering the hollow interior of the copper pipe, and the welding of the insulating pipe type bus copper pipe is realized under the dual functions of the graphite mould and the high-purity; the aluminum alloy shielding cover is used as an equipotential medium to carry out equipotential connection on the copper pipe and the cold-shrink intermediate joint inner shielding pipe through the copper braided wire, and sharp-angled burrs at the welding position of the copper pipe are shielded, so that the copper pipe and the cold-shrink intermediate joint are equipotential and reliable. The welding joint and the intermediate fitting connecting device which are used for meeting the electrical property of the end connecting part of the insulating tubular bus between the insulating tubular bus copper pipes and are arranged between the ends of the insulating tubular bus and the cold-shrinkage intermediate joint device which is held tightly through interface pressure are included, and the problems that the mechanical strength of the intermediate connecting part of the insulating tubular bus is low, the equipotential fails and the like are solved. This generating line welded joint carries out the butt fusion as an organic whole to two copper pipe conductor butt joints through graphite jig heat-releasing welded mode, wherein including stainless steel lining core as copper pipe support piece, high-purity graphite bush insulates against heat as high temperature resistant material to stainless steel lining core, prevent the melting of stainless steel lining core, the aluminum alloy shield cover carries out equipotential connection with copper pipe and cold-shrinking in-process joint inner shield pipe as equipotential medium, still including the cold-shrinking intermediate head of connecting cast generating line, insert two cast generating line end butt joints in the cold-shrinking intermediate head, closely cooperate between the insulating layer of cold-shrinking intermediate head and insulation cast generating line. The application provides an insulating tubular bus welding head which has the advantages of high connecting mechanical strength, equipotential connection reliability and the like, the insulating tubular bus is set to comprise a copper pipe, an inner shielding layer, an insulating layer and an outer shielding layer, an intermediate connecting device is set to comprise a stainless steel inner lining core, a high-purity graphite lining, a welding point, an aluminum alloy shielding cover, a tinned copper braided wire, a constant force spring and a fixing pin, the stainless steel inner lining core is of a hollow structure, a groove is formed in the outer surface of the stainless steel inner lining core, the high-purity graphite lining is placed, the size length of the stainless steel lining core is 150-400 mm, the outer diameter of the stainless steel lining core is 40-120 mm, the high-purity graphite lining is of a two-in-one structure, the length of the high-purity graphite lining is 130-380 mm, the outer diameter of the stainless steel core is 40-120 mm, high temperature resistance can reach 1300 ℃, the welding point is formed by butt, polishing and smoothing the welding point, recovering a conductor, wherein the graphite mold is matched with the copper pipe with the inner diameter of 60-150 mm, is resistant to high temperature of 1300 ℃, is provided with a welding powder placing area, a flow passage area and a copper pipe welding area, an aluminum alloy shielding cover is arranged on the outer side of the welded copper pipe for shielding sharp-angled burrs and is reliably contacted with a shielding pipe in a cold-shrink intermediate joint, a copper braided wire is arranged on the aluminum shielding cover, one end of the copper braided wire is fixed at a positioning pin of the aluminum alloy shielding cover, the other end of the copper braided wire is pressed on the copper pipe by a constant force spring to achieve the effect of reliable equipotential, the aluminum alloy shielding cover is of a two-joint structure and has a smooth surface, the two-joint structure is clamped by 4 pins, the length of the shielding cover is 140-360 mm, the outer diameter is 70-180 mm, the outer diameter of the aluminum shielding cover is 2-6 mm smaller than the outer diameter, length 50 ~ 200mm, pin length is 5mm, the shrinkage intermediate head sets up to include two joint stress cones, the inner shield pipe, the insulating layer, form by semi-conductive liquid silicone rubber and insulating liquid silicone rubber material injection vulcanization, with the shrinkage intermediate head cover at insulating tubular bus intermediate position, inner shield pipe overlap joint insulating tubular bus insulating part 15 ~ 25mm, the tensile strength of splice department is greater than 90% copper conductor tensile strength, direct current resistance is less than 0.01 omega, be used for the current rating to be 1000 ~ 12500A, the temperature rise is less than 50K, intermediate junction device is applicable to the elevation 4000 and above, through alternating current withstand voltage test 124kV, 5mim, not puncture, do not flashover, the waterproof rating of splice connecting device is IP 68.

In this technical scheme, first insulating cast generating line, second insulating cast generating line and melt are basic unit, also the utility model discloses a necessary technical feature, inside lining core, separation sleeve, braided wire, constant force spring, shield cover, interior shielding pipe, joint insulating layer, joint stress awl, outer shielding layer, first graphite electrode, second graphite electrode, first connecting plate and second connecting plate are the functional unit, are the realization the utility model discloses a characteristic of other technological effects, the design of core 41, annular groove body, arc board, round pin axle hole body, screw, runner hole body and these technical features of uncovered cavity are the technical feature who accords with patent law and implement thin rule.

In the technical scheme, the melting and filling connection refers to a welding head.

In the present invention, the fusion and the wrapping member for melting and filling the butt joint of the first insulated tubular busbar and the second insulated tubular busbar are important technical features, and are novel, inventive and practical in the technical field of the insulated tubular busbar joint device based on the fusion zone, and the terms in the present invention can be explained and understood by the patent documents in the technical field.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Figure 1 is a schematic view of the present invention,

figure 2 is a schematic view of the structure of the inner liner core 4,

figure 3 is a schematic view of the structure of the insulating sleeve 5,

figure 4 is a right side view of figure 3,

figure 5 is a schematic view showing the connection relationship between the braided wire 6 and the shield cover 8,

figure 6 is a schematic view of the structure of the shielding cage 8,

FIG. 7 is a schematic view of the structure of an exothermic welding apparatus for producing the melt 3,

FIG. 8 is a schematic view of the operation of an exothermic welding apparatus for producing the melt 3,

the cable comprises a first insulating tubular busbar-1, a second insulating tubular busbar-2, a melt-3, an inner lining core-4, an isolation sleeve-5, a braided wire-6, a constant force spring-7, a shielding cover-8, an inner shielding tube-9, a joint insulating layer-92, a joint stress cone-93, an outer shielding layer-94, a core-41, an annular groove body-42, an arc plate part-81, a pin hole body-82, a screw-83, a first graphite electrode-101, a second graphite electrode-102, a first connecting plate-103, a second connecting plate-104, a runner hole body-105 and an open cavity-106.

Detailed Description

Terms such as "having," "including," and "comprising," as used herein with respect to the present invention, are to be understood as not specifying the presence or addition of one or more other elements or combinations thereof.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In addition, the technical features mentioned in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other, and unless otherwise specified, the equipment and materials used in the following examples are commercially available, and if the processing conditions are not specified, please refer to the purchased product specification or follow the conventional method in the art.

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Fig. 1 is a first embodiment of the present invention, which is specifically described with reference to the accompanying drawings, and includes a first insulating tubular busbar 1, a second insulating tubular busbar 2, a melt 3, a lining core 4, a spacer 5, a braided wire 6, a constant force spring 7, a shield cover 8, an inner shield tube 9, a joint insulating layer 92, a joint stress cone 93, and an outer shield layer 94, and the melt 3, the lining core 4, and the shield cover 8 are provided between the first insulating tubular busbar 1 and the second insulating tubular busbar 2, the spacer 5 is provided between the lining core 4 and the first insulating tubular busbar 1, the lining core 4, and the shield cover 8, and the braided wire 6, the constant force spring 7, and the inner shield tube 9 are provided between the shield cover 8 and the first insulating tubular busbar 1 and the second insulating tubular busbar 2, and the joint insulating layer 92, the inner shield tube 9, and the first insulating tubular busbar 1 and the second insulating tubular busbar 2 are provided between the first insulating tubular busbar 1 and the second, A joint stress cone 93 and an outer shield 94.

In this embodiment, the copper pipe end of the first insulating tubular busbar 1 and the copper pipe end of the second insulating tubular busbar 2 are respectively provided to be coupled to the melt 3 and the copper pipe inner wall of the first insulating tubular busbar 1 and the copper pipe inner wall of the second insulating tubular busbar 2 are respectively provided to be coupled to the lining core 4 and the insulating sleeve 5, the copper pipe outer side surface of the first insulating tubular busbar 1 and the copper pipe outer side surface of the second insulating tubular busbar 2 are respectively provided to be coupled to the braided wire 6, the constant force spring 7 and the shield can 8, the insulating layer end of the first insulating tubular busbar 1 and the insulating layer end of the second insulating tubular busbar 2 are respectively provided to be coupled to the shield can 8 and the insulating layer outer side surface of the first insulating tubular busbar 1 and the insulating layer outer side surface of the second insulating tubular busbar 2 are respectively provided to be coupled to the inner shield pipe 9, the joint insulating layer 92, the joint stress cone 93 and the outer shield layer 94, the first insulating tubular busbar 1 and the second insulating tubular busbar 2 are respectively provided as busbars having copper tubes.

Through first insulating tubular busbar 1 and second insulating tubular busbar 2, the support tie point to fuse mass 3, inside lining core 4, spacer 5, braided wire 6, constant force spring 7, shield cover 8, interior shield tube 9, joint insulating layer 92, joint stress awl 93 and outer shielding layer 94 has been formed, by first insulating tubular busbar 1 and second insulating tubular busbar 2, realized being connected with fuse mass 3, realized being connected with inside lining core 4, realized being connected with spacer 5, realized being connected with braided wire 6, realized being connected with constant force spring 7, realized being connected with shield cover 8, realized being connected with interior shield tube 9, realized being connected with joint insulating layer 92, realized being connected with joint stress awl 93, realized being connected with outer shielding layer 94, its technical aim at: for use as a component for making connections to other electrical components.

In the present embodiment, the melt 3 is provided as a condensate of copper powder and a solder and the melt 3 is provided to be coupled with the copper pipe end of the first insulated tubular busbar 1 and the copper pipe end of the second insulated tubular busbar 2 in a circling manner.

The melt 3 forms a supporting connection point for the first insulating tubular busbar 1 and the second insulating tubular busbar 2, and the melt 3 realizes connection with the first insulating tubular busbar 1 and connection with the second insulating tubular busbar 2, and the technical purpose is that: as a member for butting the first insulated tubular busbar 1 and the second insulated tubular busbar 2.

In the present embodiment, an annular groove body 42 is provided in the outer side surface portion of the core 41 of the inner core 4 and the annular groove body 42 is provided to be coupled with the spacer 5, one end of the outer side surface portion of the core 41 is provided to be coupled with the first insulating tubular busbar 1 and the other end of the outer side surface portion of the core 41 is provided to be coupled with the second insulating tubular busbar 2, the core 41 is provided as a stainless steel circular cylindrical body and the annular groove body 42 is provided as a U-shaped annular groove body.

Through inside lining core 4, formed the support tie point to first insulation tubular busbar 1, second insulation tubular busbar 2 and spacer 5, by inside lining core 4, realized being connected with first insulation tubular busbar 1, realized being connected with second insulation tubular busbar 2, realized being connected with spacer 5, its technical aim at: as a member for supporting the butt joint of the first insulated tubular busbar 1 and the second insulated tubular busbar 2.

In the present embodiment, the insulating sheath 5 is provided as a circular cylindrical body composed of two graphite arc-shaped plates and the inner wall of the insulating sheath 5 is provided to be coupled with the inner liner core 4, the middle portion of the outer wall of the insulating sheath 5 is provided to be coupled with the melt 3 and one of the ends of the outer wall of the insulating sheath 5 is provided to be coupled with the first insulating tubular busbar 1, and the other end of the outer wall of the insulating sheath 5 is provided to be coupled with the second insulating tubular busbar 2.

Through separation sleeve 5, formed the support tie point to first insulation tubular busbar 1, second insulation tubular busbar 2, melt 3 and inside lining core 4, by separation sleeve 5, realized being connected with first insulation tubular busbar 1, realized being connected with second insulation tubular busbar 2, realized being connected with melt 3, realized being connected with inside lining core 4, its technical aim lies in: for use as a member for protecting the inner core 4 when forming the melt 3.

In the present embodiment, the braided wire 6 is provided as a braided wire of tin-plated copper and the inner end of the braided wire 6 is provided between the copper tube of the first insulating tubular busbar 1 and the constant force spring 7, the inner ends of the braided wire 6 are respectively provided to be coupled with the copper tube of the first insulating tubular busbar 1 and the constant force spring 7 and the outer end of the braided wire 6 is provided to be coupled with the shield cover 8.

Through braided wire 6, formed the support tie point to first insulation tubular busbar 1, constant force spring 7 and shield cover 8, by braided wire 6, realized being connected with first insulation tubular busbar 1, realized being connected with constant force spring 7, realized being connected with shield cover 8, its technical aim at: as one of the means for equipotential failure treatment of the joint between the first insulated tubular busbar 1 and the second insulated tubular busbar 2.

In the present embodiment, the constant force spring 7 is provided so as to be coupled with the copper tube of the first insulating tubular busbar 1 in a nested manner and an inner side surface portion of the constant force spring 7 is provided so as to be coupled with the braided wire 6.

Through constant force spring 7, formed the support tie point to first insulation tubular busbar 1 and braided wire 6, by constant force spring 7, realized being connected with first insulation tubular busbar 1, realized being connected with braided wire 6, its technical aim at: and a second part for performing equipotential failure treatment on the joint between the first insulating tubular busbar 1 and the second insulating tubular busbar 2.

In the present embodiment, the shield case 8 is provided as a circular cylindrical body composed of two aluminum alloy arc plates and pin hole bodies 82 are respectively provided at ends of the arc plate portion 81 of the shield case 8, an inner side portion of one end of the arc plate portion 81 is provided to be coupled with the braided wire 6 by a screw 83 and an outer side portion of the end of the arc plate portion 81 is provided to be coupled with the insulating layer of the first insulating tubular bus 1 and the insulating layer of the second insulating tubular bus 2, an inner wall of the end of the arc plate portion 81 is provided to be coupled with the copper tube of the first insulating tubular bus 1 and the copper tube of the second insulating tubular bus 2 and an outer wall of the end of the arc plate portion 81 is provided to be coupled with the inner shield tube 9, the pin hole body 82 of one of the arc plate portions 81 is provided to be coupled with the pin hole body 82 of the other of the arc plate portions 81 by a pin shaft and the arc plate, the pin hole bodies 82 are provided as circular hole bodies and the four pin hole bodies 82 are provided at the corners of the arc plate portion 81, and the screws 83 are provided as countersunk bolts.

Through shield cover 8, the support tie point to first insulation tubular busbar 1, second insulation tubular busbar 2, braided wire 6 and interior shield pipe 9 has been formed, by arc plate portion 81, realized being connected with first insulation tubular busbar 1, realized being connected with second insulation tubular busbar 2, realized being connected with interior shield pipe 9, by screw 83, realized being connected with braided wire 6, by round pin shaft hole body 82, realized connecting process to two arc plate portions 81, its technical aim at: as one of the parts for performing a shielding process of the joint between the first insulating tubular busbar 1 and the second insulating tubular busbar 2.

In the present embodiment, the inner shield tube 9 is provided as a shield sleeve woven of polyester multifilament yarn and the inner wall middle portion of the inner shield tube 9 is provided to be coupled with the shield cover 8, one of the ends of the inner wall of the inner shield tube 9 is provided to be coupled with the first insulating tubular busbar 1 and the other end of the inner wall of the inner shield tube 9 is provided to be coupled with the second insulating tubular busbar 2, and the inner shield tube 9 is provided to be in embedded coupling with the joint insulating layer 92.

Through interior shield tube 9, formed the support tie point to first insulation tubular busbar 1, second insulation tubular busbar 2, shield cover 8 and joint insulating layer 92, by interior shield tube 9, realized being connected with first insulation tubular busbar 1, realized being connected with second insulation tubular busbar 2, realized being connected with shield cover 8, realized being connected with joint insulating layer 92, its technical aim at: and a second part for shielding the joint between the first insulating tubular busbar 1 and the second insulating tubular busbar 2.

In the present embodiment, the joint insulating layer 92 is provided as a tubular body and the joint insulating layer 92 is provided to be coupled with the first insulating tubular busbar 1, the second insulating tubular busbar 2, the inner shield tube 9, the joint stress cone 93 and the outer shield layer 94 in a surrounding manner, respectively, the inner wall middle portion of the joint insulating layer 92 is provided to be coupled with the inner shield tube 9 and one end of the inner wall of the joint insulating layer 92 is provided to be coupled with the first insulating tubular busbar 1, the joint stress cone 93 and the outer shield layer 94, respectively, and the other end of the inner wall of the joint insulating layer 92 is provided to be coupled with the second insulating tubular busbar 2, the joint stress cone 93 and the outer shield layer 94.

Through connecting insulating layer 92, formed to first insulating tubular busbar 1, second insulating tubular busbar 2, interior shield pipe 9, connect stress cone 93 and outer shielding layer 94's support tie point, by connecting insulating layer 92, realized being connected with first insulating tubular busbar 1, realized being connected with second insulating tubular busbar 2, realized being connected with interior shield pipe 9, realized being connected with joint stress cone 93, realized being connected with outer shielding layer 94, its technical aim lies in: as a means for insulating the joint between the first insulated tubular busbar 1 and the second insulated tubular busbar 2.

In the present embodiment, the joint stress cone 93 is provided as a cable joint stress cone and the joint stress cone 93 is provided to be in embedded coupling with the joint insulation layer 92, and the outer side portion of the joint stress cone 93 is provided to be coupled with the outer shield layer 94.

Through connecting stress cone 93, formed the support tie point to joint insulating layer 92 and outer shielding layer 94, by connecting stress cone 93, realized with connecting insulating layer 92 be connected, realized being connected with outer shielding layer 94, its technical aim at: and is used as a member for reinforcing the joint insulating layer 92 with the first insulating tubular busbar 1 and the second insulating tubular busbar 2.

In the present embodiment, the outer shield layers 94 are provided as a sleeve and outer walls of the outer shield layers 94 are provided to be coupled with the joint insulating layer 92 and the joint stress cone 93, respectively, wherein an inner wall of one of the outer shield layers 94 is provided to be coupled with the first insulating tubular busbar 1 and wherein an inner wall of the other outer shield layer 94 is provided to be coupled with the second insulating tubular busbar 2.

Through outer shielding layer 94, formed the support tie point to first insulating tubular busbar 1, second insulating tubular busbar 2, joint insulating layer 92 and joint stress awl 93, by outer shielding layer 94, realized being connected with first insulating tubular busbar 1, realized being connected with second insulating tubular busbar 2, realized being connected with joint insulating layer 92, realized being connected with joint stress awl 93, its technical aim at: and a third member for performing a shielding process between the joint insulating layer 92 and the first insulating tubular busbar 1 and the second insulating tubular busbar 2.

In the present embodiment, the first insulating tubular busbar 1 and the second insulating tubular busbar 2 and the melt 3 are arranged so as to be distributed in a filling connection manner and the first insulating tubular busbar 1 and the second insulating tubular busbar 2 and the melt 3, the inner liner core 4 and the insulating jacket 5 are arranged so as to be distributed in an inner support manner, the first insulating tubular busbar 1 and the second insulating tubular busbar 2 and the melt 3, the shield cover 8, the inner shield tube 9, the joint insulating layer 92, the joint stress cone 93 and the outer shield layer 94 are arranged so as to be distributed in a wrapping and fixing manner and the first insulating tubular busbar 1 and the second insulating tubular busbar 2, the melt 3, the shield cover 8, the inner shield tube 9, the joint insulating layer 92, the joint stress cone 93 and the outer shield layer 94, the braided wire 6 and the constant force spring 7 are arranged so as to be distributed in an equipotential processing manner, and the center line of the first insulating tubular busbar 1, the braided wire 3, the braided wire, The center line of the second insulated tubular busbar 2, the center line of the melt 3, the center line of the inner liner 4, the center line of the spacer 5, the center line of the constant force spring 7, the center line of the shield cover 8, the center line of the inner shield tube 9, the center line of the joint insulating layer 92, and the center line of the outer shield layer 94 are arranged on the same straight line.

When a first insulating tubular busbar 1 and a second insulating tubular busbar 2 are butted, a butt joint end of the first insulating tubular busbar 1 and a butt joint end of the second insulating tubular busbar 2 are peeled off, a copper pipe of the first insulating tubular busbar 1 and a copper pipe of the second insulating tubular busbar 2 are in an exposed state, one of outer shielding layers 94 is sleeved on an insulating layer of the first insulating tubular busbar 1, the other of the outer shielding layers 94 is sleeved on an insulating layer of the second insulating tubular busbar 2, an insulating sleeve 5 is installed on an inner liner core 4, one of end ends of the inner liner core 4 and the insulating sleeve 5 is installed on the copper pipe of the first insulating tubular busbar 1, the other end of the inner liner core 4 and the insulating sleeve 5 is installed on the copper pipe of the second insulating tubular busbar 2, and a butt joint gap between the copper pipe of the first insulating tubular busbar 1 and the copper pipe of the second insulating tubular busbar 2 is positioned in the middle part of the outer wall of the insulating sleeve 5, forming a melt 3 on a butt joint seam of a copper pipe of a first insulating tubular busbar 1 and a copper pipe of a second insulating tubular busbar 2 by an exothermic welding device, welding an inner end of a braided wire 6 and a constant force spring 7 together, sleeving the constant force spring 7 on the copper pipe of the first insulating tubular busbar 1, connecting an outer end of the braided wire 6 with an arc plate part 81 through a screw 83, placing two arc plate parts 81 on the first insulating tubular busbar 1, the second insulating tubular busbar 2 and the melt 3, connecting the two arc plate parts 81 together through a pin shaft, connecting an outer side part of one end of the arc plate part 81 with an insulating layer of the first insulating tubular busbar 1, connecting an outer side part of one end of the arc plate part 81 with an insulating layer of the second insulating tubular busbar 2, sleeving an inner shielding pipe 9 on the first insulating tubular busbar 1, the second insulating tubular busbar 2 and a shielding cover 8, the joint insulating layer 92 is sleeved on the first insulating tubular busbar 1, the second insulating tubular busbar 2, the inner shielding tube 9 and the outer shielding layer 94, and the joint stress cones 93 are respectively arranged between the outer shielding layer 94 and the joint insulating layer 92.

FIG. 7 shows an embodiment of an exothermic welding apparatus for producing a melt 3 according to the present invention, which is specifically described with reference to the drawings, and comprises a first graphite electrode 101, a second graphite electrode 102, a first connecting plate 103, and a second connecting plate 104, and the first connecting plate 103 and the second connecting plate 104 are respectively disposed between the first graphite electrode 101 and the second graphite electrode 102.

In the present embodiment, the first graphite electrode 101 is provided as a T-shaped rod and an open cavity 106 is provided at the expanded portion of the first graphite electrode 101, a flow passage hole body 105 is provided at the contracted portion of the first graphite electrode 101 and the upper end opening portion of the flow passage hole body 105 is provided to communicate with the open cavity 106, the lower end opening portion of the flow passage hole body 105 is provided at the contracted portion lower end surface portion of the first graphite electrode 101 and one side surface portion of the contracted portion of the first graphite electrode 101 is provided to be coupled with the first connecting plate 103 by a bolt, the other side surface portion of the contracted portion of the first graphite electrode 101 is provided to be coupled with the second connecting plate 104 by a bolt and the flow passage hole body 105 and the open cavity 106 are respectively provided as circular-hole-shaped bodies.

Through first graphite electrode 101, formed the support tie point to first connecting plate 103 and second connecting plate 104, by first graphite electrode 101, realized being connected with first connecting plate 103, realized being connected with second connecting plate 104, by runner hole body 105 and open cavity 106, realized handling on the copper pipe of first insulation tubular busbar 1 and the copper pipe's of second insulation tubular busbar 2 butt joint gap to copper powder and welding agent release, its technical aim at: for use as one of the electrode parts of an exothermic welding device.

In the present embodiment, the second graphite electrode 102 is provided as a rod-shaped body having an arc nose at an inner tip and one of side surface portions of the second graphite electrode 102 is provided to be coupled with the first connecting plate 103 by a bolt and the other side surface portion of the second graphite electrode 102 is provided to be coupled with the second connecting plate 104 by a bolt.

Through second graphite electrode 102, formed the support connection point to first connecting plate 103 and second connecting plate 104, realized being connected with first connecting plate 103 by second graphite electrode 102, realized being connected with second connecting plate 104, its technical aim at: the second electrode component is used as an electrode component of an exothermic welding device.

In this embodiment, the first connection plate 103 and the second connection plate 104 are respectively provided as a sheet-like body having a through-hole body and one of the end heads of the first connection plate 103 and one of the end heads of the second connection plate 104 are respectively provided to be coupled with the first graphite electrode 101 by a bolt, and the other of the end heads of the first connection plate 103 and the other of the end heads of the second connection plate 104 are respectively provided to be coupled with the second graphite electrode 102 by a bolt.

Through first connecting plate 103 and second connecting plate 104, formed the support tie point to first graphite electrode 101 and second graphite electrode 102, realized being connected with first graphite electrode 101 by first connecting plate 103 and second connecting plate 104, realized being connected with second graphite electrode 102, its technical aim at: as a member for connecting the first graphite electrode 101 and the second graphite electrode 102.

When the melt 3 is produced, the through-hole body of the first connecting plate 103 is fitted over the copper tube of the first insulating tubular bus 1, the through-hole body of the second connecting plate 104 is fitted over the copper tube of the second insulating tubular bus 2, the lower end opening of the runner hole body 105 is made to act on the joint gap between the copper tube of the first insulating tubular bus 1 and the copper tube of the second insulating tubular bus 2, the first graphite electrode 101 and the second graphite electrode 102 are made to connect with the copper tube of the first insulating tubular bus 1 and the copper tube of the second insulating tubular bus 2, the copper powder and the welding agent are put into the open cavity 106, the first graphite electrode 101 and the second graphite electrode 102 are respectively connected with the electrodes of the power supply, the power supply is turned on, the copper powder and the welding agent are discharged into the joint gap between the copper tube of the first insulating tubular bus 1 and the copper tube of the second insulating tubular bus 2, and the copper tube of the first insulating tubular bus 1 and the copper tube of the second insulating tubular bus 2 are electrically connected by the first graphite electrode 101 and the second graphite electrode 102 The copper powder and the welding agent in the butt joint gap between the copper pipe of the first insulating tubular busbar 1 and the copper pipe of the second insulating tubular busbar 2 are melted to form a melt 3, and the copper pipe of the first insulating tubular busbar 1 and the copper pipe of the second insulating tubular busbar 2 are rotated in the first connecting plate 103 and the second connecting plate 104 to surround the melt 3 in the butt joint gap between the copper pipe of the first insulating tubular busbar 1 and the copper pipe of the second insulating tubular busbar 2.

In the second embodiment of the present invention, the melt 3 and the wrapping member are coupled to each other in such a manner that the butt joint of the first insulating tubular busbar 1 and the second insulating tubular busbar 2 is melted and filled.

In this embodiment, the melt 3 is coupled to the enveloping part in such a way that the welding current forms a melt and a filling body.

In this embodiment, the wrapping member is configured to include the shield can 8, the inner shield tube 9, the joint insulating layer 92, the joint stress cone 93, and the outer shield layer 94.

In the present embodiment, a first accessory device is further included and is disposed between the first insulated tubular busbar 1 and the second insulated tubular busbar 2, the first accessory device being configured to include the liner core 4 and the insulating sheath 5.

In the present embodiment, a second attachment device is further included and is provided between the first insulated tubular busbar 1 and the wrapping member, the second attachment device being provided to include the braided wire 6 and the constant force spring 7.

A second embodiment of the present invention is based on the first embodiment,

the utility model has the characteristics of down:

1. owing to designed melt 3 and parcel part, through melt 3, realized dissolving and filling the connection to the butt joint of first insulation tubular busbar 1 and second insulation tubular busbar 2, through the parcel part, realized carrying out cable overcoat protection to the butt joint of first insulation tubular busbar 1 and second insulation tubular busbar 2, consequently improved the mechanical strength that insulation tubular busbar connects.

2. Due to the design of the shielding case 8, the inner shielding tube 9, the joint insulating layer 92, the joint stress cone 93 and the outer shielding layer 94, insulation and shielding protection processing is realized.

3. Due to the design of the lining core 4 and the isolation sleeve 5, the copper pipe of the first insulating tubular bus 1 and the copper pipe of the second insulating tubular bus 2 are internally supported, so that the copper pipe of the first insulating tubular bus 1 and the copper pipe of the second insulating tubular bus 2 are prevented from deforming.

4. Because the braided wire 6 and the constant force spring 7 are designed, the butt joint of the first insulating tubular bus 1 and the second insulating tubular bus 2 is subjected to equipotential treatment.

5. Owing to designed and carried out numerical range's injecion to the knot configuration form, made numerical range do the utility model discloses a technical scheme in the technical scheme technical characteristics, not through the formula calculation or through the technical characteristics that the limited number of experiments reachs, the experiment shows that this numerical range's technical characteristics has obtained fine technological effect.

6. Owing to designed the utility model discloses a technical characteristic, in technical characteristic's the effect alone and mutual set, through experimental demonstration, the utility model discloses an each item performance index is 1.7 times at least for current each item performance index, has fine market value through the aassessment.

Still other technical features associated with the melting mass 3 and the wrapping member for melt-fill joining the butt joints of the first insulated tubular busbar 1 and the second insulated tubular busbar 2 are all one of the embodiments of the present invention, and the respective technical features of the above-described embodiments may be arbitrarily combined, and in order to satisfy the requirements of patent laws, patent practice rules and examination guidelines, all possible combinations of the respective technical features of the above-described embodiments will not be described.

Therefore, in the technical field of the insulated tubular busbar joint device based on the melting zone, all the technical contents of the wrapping member including the melting body 3 which is arranged between the first insulated tubular busbar 1 and the second insulated tubular busbar 2 and is used for butting the first insulated tubular busbar 1 and the second insulated tubular busbar 2 and the wrapping member which is arranged between the first insulated tubular busbar 1 and the second insulated tubular busbar 2 and is used for protecting the first insulated tubular busbar 1 and the second insulated tubular busbar 2 are within the protection scope of the present invention.

Claims (10)

1. An insulating tubular busbar joint device based on a melting area is characterized in that: the device comprises a melting body (3) which is arranged between a first insulating tubular bus (1) and a second insulating tubular bus (2) and is used for butting the first insulating tubular bus (1) and the second insulating tubular bus (2), and a wrapping part which is arranged between the first insulating tubular bus (1) and the second insulating tubular bus (2) and is used for protecting the first insulating tubular bus (1) and the second insulating tubular bus (2).

2. The fusion zone based insulated tubular busbar joint device according to claim 1, further comprising: the melting body (3) and the wrapping component are mutually connected according to the mode of carrying out melting and filling connection on the butt joint of the first insulating tubular busbar (1) and the second insulating tubular busbar (2).

3. The fusion zone based insulated tubular busbar joint device according to claim 2, further comprising: the melt (3) is connected to the enveloping part in such a way that the welding current forms a melt and a filling mass.

4. The fusion zone based insulated tubular busbar joint device according to claim 1, further comprising: the wrapping component is arranged to comprise a shielding cover (8), an inner shielding tube (9), a joint insulating layer (92), a joint stress cone (93) and an outer shielding layer (94),

or, a first accessory device is also included and arranged between the first insulating tubular busbar (1) and the second insulating tubular busbar (2), the first accessory device is arranged to include a lining core (4) and an isolation sleeve (5),

or, a second accessory device is further included and is arranged between the first insulating tubular busbar (1) and the wrapping part, and the second accessory device is arranged to include a braided wire (6) and a constant force spring (7).

5. The fusion zone based insulated tubular busbar joint according to claim 4, further comprising: the insulation structure comprises a first insulation tubular busbar (1), a second insulation tubular busbar (2), a fused body (3), an inner lining core (4) and a shielding cover (8), wherein isolation sleeves (5) are arranged between the inner lining core (4) and the first insulation tubular busbar (1), between the second insulation tubular busbar (2) and the fused body (3), braided wires (6), constant force springs (7) and inner shielding tubes (9) are arranged between the shielding cover (8) and the first insulation tubular busbar (1) and between the shielding cover (8) and the second insulation tubular busbar (2), and a joint insulation layer (92), a joint stress cone (93) and an outer shielding layer (94) are arranged between the inner shielding tubes (9) and the first insulation tubular busbar (1) and between the inner shielding tubes (2).

6. The fusion zone based insulated tubular busbar joint according to claim 5, further comprising: the melting body (3) is set to be a condensation body of copper powder and a welding agent, and the melting body (3) is set to be in surrounding connection with the copper pipe end of the first insulating tubular bus (1) and the copper pipe end of the second insulating tubular bus (2).

7. The fusion zone based insulated tubular busbar joint according to claim 5, further comprising: the copper pipe end of the first insulating tubular bus (1) and the copper pipe end of the second insulating tubular bus (2) are respectively connected with the molten body (3), the inner wall of the copper pipe of the first insulating tubular bus (1) and the inner wall of the copper pipe of the second insulating tubular bus (2) are respectively connected with the inner lining core (4) and the isolation sleeve (5), the outer side surface of the copper pipe of the first insulating tubular bus (1) and the outer side surface of the copper pipe of the second insulating tubular bus (2) are respectively connected with the braided wire (6), the constant force spring (7) and the shielding cover (8), the insulating layer end of the first insulating tubular bus (1) and the insulating layer end of the second insulating tubular bus (2) are respectively connected with the shielding cover (8), and the outer side surface of the insulating layer of the first insulating tubular bus (1) and the insulating layer outer side surface of the second insulating tubular bus (2) are respectively connected with the inner shielding pipe (9), The joint insulating layer (92), the joint stress cone (93) and the outer shielding layer (94) are connected, the first insulating tubular busbar (1) and the second insulating tubular busbar (2) are respectively arranged into busbars with copper tubes,

or, an annular groove body (42) is arranged on the outer side surface part of the core part (41) of the lining core (4) and the annular groove body (42) is connected with the isolation sleeve (5), one end head of the outer side surface part of the core part (41) is connected with the first insulating tubular bus bar (1) and the other end head of the outer side surface part of the core part (41) is connected with the second insulating tubular bus bar (2), the core part (41) is a stainless steel circular cylindrical body and the annular groove body (42) is a U-shaped annular groove body,

or the isolation sleeve (5) is a circular cylindrical body consisting of two graphite arc plates, the inner wall of the isolation sleeve (5) is connected with the lining core (4), the middle part of the outer wall of the isolation sleeve (5) is connected with the molten mass (3), one end of the outer wall of the isolation sleeve (5) is connected with the first insulating tubular bus bar (1), the other end of the outer wall of the isolation sleeve (5) is connected with the second insulating tubular bus bar (2),

or the braided wire (6) is a tinned copper braided wire, the inner end of the braided wire (6) is arranged between the copper pipe of the first insulating tubular bus (1) and the constant force spring (7), the inner end of the braided wire (6) is respectively connected with the copper pipe of the first insulating tubular bus (1) and the constant force spring (7) and the outer end of the braided wire (6) is connected with the shielding cover (8),

or the constant force spring (7) is connected with the copper tube of the first insulating tubular bus (1) in a sleeving way, the inner side surface of the constant force spring (7) is connected with the braided wire (6),

or, the shield cover (8) is set to be a circular cylindrical body composed of two aluminum alloy arc plates, pin hole bodies (82) are respectively arranged at the ends of the arc plate parts (81) of the shield cover (8), the inner side part of one end of the arc plate parts (81) is connected with the braided wire (6) through a screw (83), the outer side part of the end of the arc plate parts (81) is connected with the insulating layer of the first insulating tubular bus (1) and the insulating layer of the second insulating tubular bus (2), the inner wall of the end of the arc plate parts (81) is connected with the copper pipe of the first insulating tubular bus (1) and the copper pipe of the second insulating tubular bus (2), the outer wall of the end of the arc plate parts (81) is connected with the inner shield pipe (9), the pin hole body (82) of one arc plate part (81) is connected with the pin hole body (82) of the other arc plate part (81) through a pin shaft, and the middle part (81) is provided with a through hole body The pin shaft hole body (82) is a circular hole body, the four pin shaft hole bodies (82) are arranged at the corner parts of the arc plate part (81), the screw (83) is a sunk bolt,

or, the inner shielding tube (9) is set as a shielding sleeve woven by polyester multifilament and the middle part of the inner wall of the inner shielding tube (9) is set to be coupled with the shielding cover (8), one end of the inner wall of the inner shielding tube (9) is set to be coupled with the first insulating tubular busbar (1) and the other end of the inner wall of the inner shielding tube (9) is set to be coupled with the second insulating tubular busbar (2), the inner shielding tube (9) is set to be in embedded coupling with the joint insulating layer (92),

or the joint insulating layer (92) is arranged to be a tubular body, the joint insulating layer (92) is respectively arranged to be in contained connection with the first insulating tubular busbar (1), the second insulating tubular busbar (2), the inner shielding tube (9), the joint stress cone (93) and the outer shielding layer (94), the middle part of the inner wall of the joint insulating layer (92) is arranged to be in connection with the inner shielding tube (9) and one end of the inner wall of the joint insulating layer (92) is respectively arranged to be in connection with the first insulating tubular busbar (1), the joint stress cone (93) and the outer shielding layer (94) and the other end of the inner wall of the joint insulating layer (92) is arranged to be in connection with the second insulating tubular busbar (2), the joint stress cone (93) and the outer shielding layer (94),

or the joint stress cone (93) is set as a cable joint stress cone and the joint stress cone (93) is set to be in embedded connection with the joint insulating layer (92), the outer side surface part of the joint stress cone (93) is set to be connected with the outer shielding layer (94),

or, the outer shielding layers (94) are arranged into a sleeve body, the outer walls of the outer shielding layers (94) are respectively arranged to be coupled with the joint insulating layer (92) and the joint stress cone (93), the inner wall of one outer shielding layer (94) is arranged to be coupled with the first insulating tubular busbar (1) and the inner wall of the other outer shielding layer (94) is arranged to be coupled with the second insulating tubular busbar (2).

8. The fusion zone-based insulated tubular busbar joint device according to any one of claims 1 to 7, wherein: the first insulating tubular bus (1), the second insulating tubular bus (2) and the fused body (3) are distributed in a filling connection mode, the first insulating tubular bus (1), the second insulating tubular bus (2), the fused body (3), the lining core (4) and the isolation sleeve (5) are distributed in an inner supporting mode, the first insulating tubular bus (1), the second insulating tubular bus (2), the fused body (3), the shielding cover (8), the inner shielding tube (9), the joint insulating layer (92), the joint stress cone (93) and the outer shielding layer (94) are distributed in a wrapping and fixing mode, and the first insulating tubular bus (1), the second insulating tubular bus (2), the fused body (3), the shielding cover (8), the inner shielding tube (9), the joint insulating layer (92), the joint stress cone (93), the outer shielding layer (94), the braided wire (6) and the constant force spring (7) are arranged in an equipotential processing equal direction The central line of the first insulating tubular busbar (1), the central line of the second insulating tubular busbar (2), the central line of the molten mass (3), the central line of the inner lining core (4), the central line of the isolation sleeve (5), the central line of the constant force spring (7), the central line of the shielding cover (8), the central line of the inner shielding tube (9), the central line of the joint insulating layer (92) and the central line of the outer shielding layer (94) are arranged on the same straight line.

9. The fusion zone based insulated tubular busbar joint device according to claim 1, further comprising: an exothermic welding device for producing a melt (3) comprises a first graphite electrode (101), a second graphite electrode (102), a first connecting plate (103) and a second connecting plate (104), and the first connecting plate (103) and the second connecting plate (104) are respectively arranged between the first graphite electrode (101) and the second graphite electrode (102).

10. The fusion zone based insulated tubular busbar joint according to claim 9, further comprising: the first graphite electrode (101) is arranged into a T-shaped rod-shaped body, an open cavity (106) is arranged at the expansion part of the first graphite electrode (101), a flow passage hole body (105) is arranged at the contraction part of the first graphite electrode (101), the upper port part of the flow passage hole body (105) is communicated with the open cavity (106), the lower port part of the flow passage hole body (105) is arranged at the lower end part of the contraction part of the first graphite electrode (101), one side part of the contraction part of the first graphite electrode (101) is connected with the first connecting plate (103) through a bolt, the other side part of the contraction part of the first graphite electrode (101) is connected with the second connecting plate (104) through a bolt, and the flow passage hole body (105) and the open cavity (106) are respectively arranged into circular hole-shaped bodies,

or the second graphite electrode (102) is arranged into a rod-shaped body with an arc-shaped raised head at the inner end, one side surface part of the second graphite electrode (102) is arranged to be connected with the first connecting plate (103) through a bolt, the other side surface part of the second graphite electrode (102) is arranged to be connected with the second connecting plate (104) through a bolt,

or the first connecting plate (103) and the second connecting plate (104) are respectively provided as a sheet body with a through hole body, one end head of the first connecting plate (103) and one end head of the second connecting plate (104) are respectively provided to be connected with the first graphite electrode (101) through a bolt, and the other end head of the first connecting plate (103) and the other end head of the second connecting plate (104) are respectively provided to be connected with the second graphite electrode (102) through a bolt.

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