CN219477101U - High-voltage cable straight-through false joint grounding leading-out device - Google Patents
High-voltage cable straight-through false joint grounding leading-out device Download PDFInfo
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- CN219477101U CN219477101U CN202320675321.6U CN202320675321U CN219477101U CN 219477101 U CN219477101 U CN 219477101U CN 202320675321 U CN202320675321 U CN 202320675321U CN 219477101 U CN219477101 U CN 219477101U
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- Prior art keywords
- voltage cable
- lead
- connecting plate
- out device
- grounding
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- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 34
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 34
- 230000001681 protective effect Effects 0.000 claims abstract description 30
- 239000004411 aluminium Substances 0.000 claims abstract description 7
- 238000007789 sealing Methods 0.000 claims description 28
- 238000003466 welding Methods 0.000 claims description 10
- 239000003292 glue Substances 0.000 claims description 9
- 239000000565 sealant Substances 0.000 claims description 6
- 238000009434 installation Methods 0.000 abstract description 6
- 238000000605 extraction Methods 0.000 abstract description 3
- 229920003023 plastic Polymers 0.000 abstract description 3
- 239000004033 plastic Substances 0.000 abstract description 3
- 239000010410 layer Substances 0.000 description 11
- 229920000915 polyvinyl chloride Polymers 0.000 description 6
- 239000004800 polyvinyl chloride Substances 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 4
- 238000009413 insulation Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000004593 Epoxy Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 206010053615 Thermal burn Diseases 0.000 description 2
- 229910052786 argon Inorganic materials 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000009421 internal insulation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000004078 waterproofing Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Cable Accessories (AREA)
Abstract
The utility model discloses a high-voltage cable straight-through false joint grounding lead-out device which is used for connecting a high-voltage cable with a grounding cable, an aluminum sheath is exposed on the high-voltage cable, the high-voltage cable straight-through false joint grounding lead-out device comprises a grounding lead-out assembly and a protective shell, the grounding lead-out assembly comprises a connecting plate and a lead-out end, one end of the lead-out end is electrically connected with the connecting plate, the other end of the lead-out end is electrically connected with the grounding cable, two ends of the connecting plate are arranged in a split way, the connecting plate is electrically connected with the aluminum sheath, the connecting plate is attached to the aluminum sheath, and the protective shell is wrapped on the outer side of the high-voltage cable and is arranged on the outer side of the grounding lead-out assembly. The connecting plate both ends are the setting of opening fork, with its plastic of being convenient for when the installation in order to laminate in place with the aluminium sheath, open fork design can also increase welded area of contact to increased the reliability that aluminium sheath is connected with the connecting plate, and increased through-flow capacity, the protective housing can realize high tension cable and directly connect the sealed waterproof and the mechanical protection of false joint ground connection extraction device.
Description
Technical Field
The utility model relates to the technical field of high-voltage cable accessories, in particular to a high-voltage cable straight-through false joint grounding lead-out device.
Background
It is known that the longer the cabling, the higher the induced voltage that develops on its metal sheath, thus affecting the safe operation of the cabling. To reduce the induced voltage on the cable metal sheath, the current common practice in the industry is to artificially break out the ground tap on the entire length of cable, also known as a pseudo-splice technique.
Most of the existing false joint technologies are to weld copper braid belts on an aluminum sheath of a high-voltage cable to be led out in a grounding mode, the contact area between the copper braid belts and the aluminum sheath of the high-voltage cable is small, and the connection reliability is poor.
Disclosure of Invention
The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the utility model provides the high-voltage cable straight-through false joint grounding leading-out device, which solves the problem of poor connection reliability of the false joint in the prior art.
According to an embodiment of the first aspect of the present utility model, a high-voltage cable through-pseudojoint ground lead-out device is used for connecting a high-voltage cable with a ground cable, an aluminum sheath is exposed on the high-voltage cable, and the high-voltage cable through-pseudojoint ground lead-out device includes:
the grounding lead-out assembly comprises a connecting plate and a lead-out end, one end of the lead-out end is electrically connected with the connecting plate, the other end of the lead-out end is electrically connected with the grounding cable, two ends of the connecting plate are arranged in a forked manner, the connecting plate is electrically connected with the aluminum sheath, and the connecting plate is attached to the aluminum sheath;
and the protective shell is wrapped on the outer side of the high-voltage cable and arranged on the outer side of the grounding lead-out assembly.
And the sealing layer is arranged between the protective shell and the high-voltage cable.
The high-voltage cable straight-through false joint grounding lead-out device provided by the embodiment of the utility model has at least the following beneficial effects:
the connecting plate both ends are the setting of opening fork, with its plastic of being convenient for when the installation in order to laminate in place with the aluminium sheath, open fork design can also increase the profile length of connecting plate, increase welded area of contact, thereby increased the reliability that aluminium sheath is connected with the connecting plate, and increase the through-flow ability, the protective housing can realize high-voltage cable and directly connect the sealing waterproof and the mechanical protection of ground connection extraction device, improve high-voltage cable and directly connect the reliability of ground connection extraction device.
According to some embodiments of the utility model, the connection plate is in the shape of an arc plate.
According to some embodiments of the utility model, the connection plate is connected to the high voltage cable by means of laser welding.
According to some embodiments of the utility model, a first insulating layer is provided at the junction of the connection plate and the outlet.
According to some embodiments of the utility model, a second insulating sheath is provided outside the exposed aluminum sheath, the second insulating sheath being formed by wrapping an insulating tape.
According to some embodiments of the utility model, a plurality of openings (111) are arranged at two ends of the connecting plate (110) at intervals.
According to some embodiments of the utility model, the high voltage cable straight-through dummy joint ground lead-out device further comprises a sealing layer (300) provided between the protective case (200) and the high voltage cable (600).
According to some embodiments of the utility model, the sealing layer is waterproof sealant, and a glue filling hole for filling the waterproof sealant is formed in the protective shell.
According to some embodiments of the utility model, the protective shell is provided with a wiring hole for externally connecting the grounding cable.
According to some embodiments of the utility model, the two ends of the protective shell along the axial direction of the high-voltage cable are provided with end sealing structures, and the end sealing structures comprise filling glue, epoxy mud, waterproof tapes and PVC.
Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.
Drawings
The utility model is further described with reference to the accompanying drawings and examples, in which:
fig. 1 is a schematic structural diagram of a high-voltage cable through-pseudo-joint grounding lead-out device according to an embodiment of the present utility model;
FIG. 2 is a top view of a ground lead assembly of a high voltage cable straight through dummy contact ground lead assembly according to one embodiment of the present utility model;
FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;
fig. 4 is a right side view of a ground lead assembly of a high voltage cable straight through dummy contact ground lead assembly according to one embodiment of the present utility model.
Reference numerals:
100. the grounding leading-out component; 110. a connecting plate; 111. an opening; 120. leading out a terminal; 130. a first insulating layer;
200. a protective shell; 210. a glue filling hole; 220. a wiring hole;
300. a sealing layer;
400. a second insulating protective layer;
500. an end seal structure;
600. a high voltage cable; 610. an aluminum sheath;
700. and (3) grounding cables.
Detailed Description
Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and to simplify the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model. Furthermore, features defining "first", "second" may include one or more such features, either explicitly or implicitly. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
Referring to fig. 1, fig. 2 and fig. 3, the embodiment of the present application provides a high-voltage cable straight-through dummy joint grounding lead-out device for connecting a high-voltage cable 600 and a grounding cable 700, wherein an aluminum sheath 610 is exposed on the high-voltage cable 600, and when the high-voltage cable straight-through dummy joint grounding lead-out device is installed, the original high-voltage cable 600 needs to be processed, and the cable outer sheath is peeled off to expose a certain length of the aluminum sheath 610 (cable metal sheath). The high-voltage cable straight-through dummy connector ground lead-out device comprises a ground lead-out assembly 100 and a protective shell 200. The ground lead assembly 100 includes a connection board 110 and a lead terminal 120, one end of the lead terminal 120 is electrically connected to the connection board 110, and the other end of the lead terminal 120 is electrically connected to the ground cable 700. The two ends of the connecting plate 110 are arranged in a forked way, the connecting plate 110 is electrically connected with the aluminum sheath 610, and the connecting plate 110 is attached to the aluminum sheath 610. The protective case 200 is hollow inside, and the protective case 200 wraps the outside of the high voltage cable 600 and is disposed on the outside of the ground lead assembly 100.
The connecting plate 110 both ends are the setting of opening, are convenient for carry out the plastic when installing it to laminate in place with aluminium sheath 610, open the design and can also increase the profile length of connecting plate 110, increase welded area of contact, thereby increased the reliability that aluminium sheath 610 is connected with connecting plate 110, and increase the through-flow ability (the current capacity that allows the passing through, the wire sectional area is bigger, the through-flow ability is better). The protective shell 200 can be used for realizing the sealing waterproof and mechanical protection of the false joint grounding lead-out device by the protective shell 200, and improving the reliability of the high-voltage cable direct false joint grounding lead-out device.
In some embodiments, referring to fig. 1 and 4, the connection board 110 has an arc-shaped plate shape, and the connection board 110 is connected to the high-voltage cable 600 at an inner side and to the outlet 120 at an outer side. The arc-shaped plate-shaped connecting plate 110 can facilitate the connecting plate 110 to be attached to the aluminum sheath 610 of the high-voltage cable 600, and compared with a plane plate, the shaping step when the subsequent connecting plate 110 is connected with the aluminum sheath 610 can be reduced, so that the installation time can be saved, and the cost can be saved.
In some embodiments, referring to fig. 1, 2 and 3, the connection plate 110 is connected to the high voltage cable 600 by means of laser welding. The existing false joint is connected with the cable metal sheath by adopting lead sealing and argon arc welding, the temperature is high, and the cable internal structure is easy to scald if the operation is improper. The embodiment of the application discards conventional lead sealing or argon arc welding, adopts a laser welding technology, can effectively realize the electric connection between the aluminum sheath 610 of the high-voltage cable 600 and the connecting plate 110, has excellent mechanical property and low welding temperature, and cannot scald the internal structure of the cable. By adopting the laser welding technology, the risk of damaging the internal insulation caused by high temperature on the surface of the cable metal sheath can be effectively reduced.
In some embodiments, referring to fig. 1, 2 and 3, a first insulating sheath 130 is provided at the junction of the connection plate 110 and the outlet 120. By arranging the first insulating sheath 130, the insulating performance of the grounding lead-out assembly 100 can be enhanced, the on-site wrapping installation difficulty is reduced, the connection position of the connecting plate 110 and the lead-out end 120 can be protected, and the abrasion of the connection position of the connecting plate 110 and the lead-out end 120 is avoided.
In some embodiments, referring to fig. 1, 2 and 3, a second insulating sheath 400 is disposed outside the exposed aluminum sheath 610. After the ground lead assembly 100 is connected to the exposed aluminum sheath 610, the second insulating sheath 400 is installed on the exposed aluminum sheath 610, and the second insulating sheath 400 can better protect the aluminum sheath 610 and increase the insulating performance of the exposed aluminum sheath 610.
The second insulation layer 400 is formed by wrapping an insulation tape. The cable sheath is restored by winding the insulating tape. And the wrapping process can wrap the connecting plate 110 together, so that the insulation performance of the ground lead-out assembly 100 can be enhanced, and the connection stability of the ground lead-out assembly 100 and the high-voltage cable 600 can be ensured.
In some embodiments, referring to fig. 1, 2 and 3, the connecting plate 110 is provided with a plurality of openings 111 at both ends, and the plurality of openings 111 are spaced apart. The plurality of openings 111 form a split design of the connection plate 110. Shaping the aluminum sheath 610 in place during installation is convenient, the split design can also increase the profile length of the connecting plate 110, increase the contact area for welding, thereby increasing the reliability of the connection between the aluminum sheath 610 and the connecting plate 110 and increasing the current capacity (the larger the current capacity allowed to pass, the better the current capacity).
In some embodiments, referring to fig. 1, the high voltage cable straight dummy tab ground lead-out device further includes a sealing layer 300, the sealing layer 300 being disposed between the protective case 200 and the high voltage cable 600. A sealing layer 300 is provided in the protective case 200 to further seal the waterproof and support the ground lead-out device of the dummy connector.
In some embodiments, referring to fig. 1, sealing layer 300 is a waterproof sealant, and protective case 200 is provided with a glue-filling hole 210, and glue-filling hole 210 is used for filling waterproof sealant. Some existing false joints are sealed and waterproof through the strip materials, but some cable operation environments have the condition of long-term water soaking, and the sealing and waterproof of the strip materials are easy to lose effectiveness. The embodiment of the application can realize excellent sealing waterproof performance through the sealing waterproof glue and the protective shell 200.
In some embodiments, referring to fig. 1, the protective case 200 is provided with a wiring hole 220, and the wiring hole 220 is used for inserting the ground cable 700. One end of the grounding cable 700 is electrically connected with the lead-out terminal 120, and can be connected in a laser welding manner, and the other end of the grounding cable 700 extends out of the wiring hole 220. The connection hole 220 is provided on the protective case 200 to facilitate fixing the installation position of the ground cable 700, and to provide support for the ground cable 700. After the grounding cable 700 extends out, sealing waterproof glue is filled into the protective shell 200 along the glue filling hole 210, so that the insulation performance of the extending part of the grounding cable 700 can be ensured.
In some embodiments, referring to fig. 1, two ends of the protective housing 200 along the axial direction of the high voltage cable 600 are provided with end sealing structures 500, and the end sealing structures 500 are provided, so that the end sealing of the protective housing 200 can be ensured, and the waterproof performance of the high voltage cable straight-through false joint grounding lead-out device is improved. The end seal 500 includes a filler glue, epoxy mud, waterproof tape, and PVC (Polyvinyl chloride polyvinylchloride). The filling glue can better fill the gap at the end part of the sealing shell, and the epoxy mud has the characteristics of stable chemical property and good corrosion resistance and weather resistance. The waterproof belt is convenient to wrap, realizes sealing and waterproofing, and PVC has the advantages of flame resistance, acid and alkali resistance, microorganism resistance, wear resistance, good warmth retention property and elasticity, and further improves sealing effect by wrapping the PVC belt. The sealing of the end part is realized by wrapping insulating strips at the two ends of the protection box.
In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. A high voltage cable straight-through false joint ground lead-out device for connect high voltage cable and earth cable, expose on the high voltage cable and have aluminium sheath, its characterized in that includes:
the grounding lead-out assembly comprises a connecting plate and a lead-out end, one end of the lead-out end is electrically connected with the connecting plate, the other end of the lead-out end is electrically connected with the grounding cable, two ends of the connecting plate are arranged in a forked manner, the connecting plate is electrically connected with the aluminum sheath, and the connecting plate is attached to the aluminum sheath;
and the protective shell is wrapped on the outer side of the high-voltage cable and arranged on the outer side of the grounding lead-out assembly.
2. The high-voltage cable straight-through dummy joint ground lead-out device according to claim 1, wherein the connecting plate is arc-shaped plate-like.
3. The high-voltage cable straight-through dummy joint grounding lead-out device according to claim 1, wherein the connecting plate is connected with the high-voltage cable by means of laser welding.
4. The high-voltage cable straight-through dummy joint grounding lead-out device according to claim 1, wherein a first insulating sheath is arranged at the connection position of the connecting plate and the lead-out terminal.
5. The high-voltage cable straight-through dummy joint grounding lead-out device according to claim 1, wherein a second insulating sheath is arranged outside the exposed aluminum sheath, and the second insulating sheath is formed by wrapping an insulating tape.
6. The high-voltage cable straight-through dummy joint grounding lead-out device according to claim 1, wherein a plurality of openings are arranged at two ends of the connecting plate at intervals.
7. The high voltage cable straight through dummy joint ground lead out device according to claim 1, further comprising a sealing layer provided between the protective case and the high voltage cable.
8. The high-voltage cable straight-through false joint grounding lead-out device according to claim 7, wherein the sealing layer is waterproof sealant, and a glue filling hole for filling the waterproof sealant is formed in the protective shell.
9. The high-voltage cable straight-through dummy joint ground lead-out device according to claim 7, wherein a wiring hole for inserting the ground cable is provided on the protective case.
10. The high-voltage cable straight-through dummy joint grounding lead-out device according to claim 1, wherein end sealing structures are arranged at two ends of the protective shell along the axis direction of the high-voltage cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320675321.6U CN219477101U (en) | 2023-03-30 | 2023-03-30 | High-voltage cable straight-through false joint grounding leading-out device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320675321.6U CN219477101U (en) | 2023-03-30 | 2023-03-30 | High-voltage cable straight-through false joint grounding leading-out device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219477101U true CN219477101U (en) | 2023-08-04 |
Family
ID=87462062
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320675321.6U Active CN219477101U (en) | 2023-03-30 | 2023-03-30 | High-voltage cable straight-through false joint grounding leading-out device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219477101U (en) |
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2023
- 2023-03-30 CN CN202320675321.6U patent/CN219477101U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 410000 No. 223, tongzipo West Road, Lugu Industrial Park, high tech Development Zone, Changsha, Hunan Patentee after: Long Cable Technology Group Co.,Ltd. Country or region after: China Address before: No.223, tongzipo West Road, Lugu Industrial Park, high tech Development Zone, Changsha City, Hunan Province, 410205 Patentee before: CHANGLAN CABLE ACCESSORIES Co.,Ltd. Country or region before: China |
|
| CP03 | Change of name, title or address |