CN219801870U - Cable cold-shrink terminal that sealing performance is good - Google Patents
Cable cold-shrink terminal that sealing performance is good Download PDFInfo
- Publication number
- CN219801870U CN219801870U CN202321210471.6U CN202321210471U CN219801870U CN 219801870 U CN219801870 U CN 219801870U CN 202321210471 U CN202321210471 U CN 202321210471U CN 219801870 U CN219801870 U CN 219801870U
- Authority
- CN
- China
- Prior art keywords
- cable
- sealing sleeve
- terminal
- wall
- shrink
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 47
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 4
- 238000001125 extrusion Methods 0.000 abstract description 3
- 239000010410 layer Substances 0.000 description 28
- 239000000463 material Substances 0.000 description 6
- 230000035882 stress Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000005526 G1 to G0 transition Effects 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 239000011229 interlayer Substances 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 229920002379 silicone rubber Polymers 0.000 description 2
- 239000004945 silicone rubber Substances 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 229920006231 aramid fiber Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
Landscapes
- Cable Accessories (AREA)
Abstract
The utility model provides a cable shrinkage terminal that sealing performance is good, includes cable shrinkage terminal main part and shielding layer, the inner wall right side of cable shrinkage terminal main part is equipped with seal structure, seal structure includes the support cover piece, the outer wall of support cover piece is bonded with cable shrinkage terminal main part, the inner wall and the seal cover of support cover piece offset tightly. The sealing sleeve is connected with the airtight core through an external air charging device, then the airtight core is used for filling gas into the cavity of the sealing sleeve, the volume of the sealing sleeve is increased, the sealing sleeve is used for filling gaps between the cable cold-shrink terminal main body and the cable through air in the sealing sleeve, the sealing sleeve is blocked through the supporting sleeve block, the sealing sleeve is extruded by the supporting sleeve block, the sealing sleeve is always attached to the cable, and the sealing sleeve is used in an extrusion state, so that the situation that water vapor enters the cable cold-shrink terminal due to the fact that gaps exist between the cable cold-shrink terminal and the cable easily caused by long-time use is prevented.
Description
Technical Field
The utility model relates to a cable cold-shrink terminal, in particular to a cable cold-shrink terminal with good sealing performance.
Background
When connecting a cable (having an outer semiconductive layer exceeding 3 kV) to an electrical device or to an overhead line, it is necessary to remove part of the outer semiconductive layer of its termination in order to ensure a sufficient safety distance between the low voltage end (outer semiconductive layer) and the high voltage end (core). However, removing a portion of the outer semiconductor break of the semiconductor layer may create electric field distortion, resulting in concentration of electric stress, creating an electrical discharge. Therefore, the electrical stresses at this point must be homogenized to ensure safe and efficient operation of the cable, which would otherwise lead to breakdown of the cable.
For example, the authorized bulletin number is CN204464933U, the reinforced cable cold-shrink terminal structure, the above-mentioned document uses aramid fiber material as the interlayer, insulating silicone rubber material as the inner layer and outer layer, utilize the interlayer to press from both sides and locate between inner layer and the outer layer, make the structural strength of insulating tube better, have high modulus and high temperature resistant, acid and alkali resistant, light in weight, insulation, ageing resistance, life cycle length etc. fine performance, and utilize the shielding layer to realize fine shielding effect, utilize the weather-proof layer to make the weatherability of product better, the product is more durable, simultaneously utilize conductive silicone rubber material as stress cone, the electric field distribution of cable shielding cut-off has been improved reliably, therefore the performance of product effectively strengthen, however, cable cold-shrink terminal in above-mentioned document is because the outer wall of cable is in the state of supporting tightly with cable cold-shrink terminal edge, make cable cold-shrink terminal edge take place deformation, cable cold-shrink terminal edge is easy to appear tired under the condition that is in tensile for a long time, make its sealing performance long time, there is the clearance between cable terminal edge and the cable easy to lead to the fact that it is in the long-term work condition in the bad environment, the outdoor condition that makes it easy to get into inside the cable cold shrink.
Disclosure of Invention
The utility model aims to solve the problem that in the prior art, because a gap is easily formed between a cable cold-shrink terminal and a cable after long-time use, water vapor enters the cable cold-shrink terminal, and provides the cable cold-shrink terminal with good sealing performance.
The utility model solves the technical problems by adopting the technical scheme that:
the utility model provides a cable shrinkage terminal that sealing performance is good, includes cable shrinkage terminal main part and shielding layer, the inner wall right side of cable shrinkage terminal main part is equipped with seal structure, seal structure includes the support cover piece, the outer wall of support cover piece is bonded with cable shrinkage terminal main part, the inner wall and the seal cover of support cover piece offset tightly, the right side and the airtight core stationary phase of seal cover.
Further perfecting, the sealing sleeve is internally provided with a cavity.
Further perfecting, the outer wall of the shielding layer is connected with the weather-resistant layer.
Further perfecting, the outer wall of the weather-proof layer is fixedly connected with a plurality of umbrella skirts.
Further perfecting, the left side of the inner wall of the main body of the cable cold-shrink terminal is fixedly connected with the stress tube.
Further perfecting, the outer wall of the main body of the cable cold-shrink terminal is connected with the shielding layer.
The beneficial effects of the utility model are as follows: according to the utility model, the external air charging device is connected with the airtight core, then the airtight core is used for filling gas into the cavity of the sealing sleeve, the volume of the sealing sleeve is increased, so that the sealing sleeve is used for filling a gap between the cable cold-shrink terminal main body and the cable through air in the sealing sleeve, the supporting sleeve block is used for blocking the outside of the sealing sleeve, the sealing sleeve is extruded by the supporting sleeve block, the sealing sleeve is always adhered to the cable, and the situation that water vapor enters the cable cold-shrink terminal due to the fact that gaps exist between the cable cold-shrink terminal and the cable due to long-time use is prevented because the internal air is always kept in an extrusion state.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic cross-sectional view of FIG. 1;
FIG. 3 is a schematic diagram of a front view structure of the present utility model
Fig. 4 is a schematic structural diagram of a in fig. 3.
Reference numerals illustrate: 1. the cable cold-shrink terminal main body, 2, the shielding layer, 3, the resistant layer of waiting, 4, seal structure, 4a1, supporting sleeve, 4a2, seal cover, 4a3, airtight core, 4b1, auxiliary layer, 5, umbrella skirt, 6, stress tube.
Detailed Description
The utility model is further described below with reference to the accompanying drawings:
example 1:
referring to fig. 1-4: in this embodiment, a cable shrinkage terminal that sealing performance is good, including cable shrinkage terminal main part 1 and shielding layer 2, the inner wall right side of cable shrinkage terminal main part 1 is equipped with seal structure 4, seal structure 4 includes support sleeve piece 4a1, the outer wall of support sleeve piece 4a1 is bonded with cable shrinkage terminal main part 1, the inner wall of support sleeve piece 4a1 offsets tightly with seal sleeve 4a2, the right side of seal sleeve 4a2 and airtight core 4a3 stationary phase, the material of support sleeve piece 4a1 is made for carbon fiber material, higher hardness and high temperature resistant, the characteristic of friction resistant, thereby play the supporting role to seal sleeve 4a2, airtight core 4a3 is prior art, generally be used for the tire air inlet, avoid the tire gas leakage, seal sleeve 4a 2's material is made for silica gel material, have long service life, elasticity is high, high temperature resistant characteristics, the inside processing of seal sleeve 4a2 has the cavity, the outer wall of shielding layer 2 is connected with weather resistant layer 3, the outer wall and a plurality of umbrella skirt 5 fixedly link to each other of weather resistant layer 3, wherein shielding layer 2, weather resistant layer 6 and weather resistant layer 3's concrete number can be the cable number is that the outer wall of the main part is that is connected with 204464933 of the cable main part 1 with the side of the shrinkage terminal, the side is fixed with 526.
Working principle:
the cable and the cable shrinkage terminal main body 1 are connected through an external air charging device and the airtight core 4a3, then the cavity of the sealing sleeve 4a2 is filled with air through the airtight core 4a3, the volume of the sealing sleeve is increased, the sealing sleeve fills a gap between the cable shrinkage terminal main body 1 and the cable through air in the sealing sleeve, the sealing sleeve 4a2 is blocked through the supporting sleeve block 4a1, the sealing sleeve 4a2 is guaranteed to be extruded by the supporting sleeve block 4a1, the sealing sleeve is always attached to the cable, and the situation that water vapor enters the cable shrinkage terminal due to the fact that the gap exists between the cable shrinkage terminal and the cable due to long-time use is prevented because the air in the interior is used in an extrusion state.
Example 2:
referring to fig. 1-4: in this embodiment, a cable cold-shrink terminal with good sealing performance, where the sealing structure 4 may further include an auxiliary layer 4b1, where an outer wall of the auxiliary layer 4b1 is bonded to an inner wall of the sealing sleeve 4a2, and the auxiliary layer 4b1 is a corrosion-resistant coating to prevent the sealing sleeve from being corroded. While the utility model has been shown and described with reference to a preferred embodiment, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the scope of the utility model.
Claims (6)
1. The utility model provides a cable shrinkage terminal that sealing performance is good, includes cable shrinkage terminal main part (1) and shielding layer (2), characterized by: the cable shrinkage terminal is characterized in that a sealing structure (4) is arranged on the right side of the inner wall of the cable shrinkage terminal main body (1), the sealing structure (4) comprises a supporting sleeve block (4 a 1), the outer wall of the supporting sleeve block (4 a 1) is adhered to the cable shrinkage terminal main body (1), the inner wall of the supporting sleeve block (4 a 1) is tightly abutted to a sealing sleeve (4 a 2), and the right side of the sealing sleeve (4 a 2) is fixedly connected with an airtight core (4 a 3).
2. The cable cold-shrink terminal with good sealing performance according to claim 1, characterized in that: a cavity is formed in the sealing sleeve (4 a 2).
3. The cable cold-shrink terminal with good sealing performance according to claim 1, characterized in that: the outer wall of the shielding layer (2) is connected with the weather-proof layer (3).
4. A cable cold shrink terminal with good sealing performance according to claim 3, characterized in that: the outer wall of the weather-proof layer (3) is fixedly connected with a plurality of umbrella skirts (5).
5. The cable cold-shrink terminal with good sealing performance according to claim 1, characterized in that: the left side of the inner wall of the cable cold-shrink terminal main body (1) is fixedly connected with the stress tube (6).
6. The cable cold-shrink terminal with good sealing performance according to claim 1, characterized in that: the outer wall of the cable cold-shrink terminal main body (1) is connected with the shielding layer (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321210471.6U CN219801870U (en) | 2023-05-17 | 2023-05-17 | Cable cold-shrink terminal that sealing performance is good |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321210471.6U CN219801870U (en) | 2023-05-17 | 2023-05-17 | Cable cold-shrink terminal that sealing performance is good |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219801870U true CN219801870U (en) | 2023-10-03 |
Family
ID=88156771
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321210471.6U Active CN219801870U (en) | 2023-05-17 | 2023-05-17 | Cable cold-shrink terminal that sealing performance is good |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219801870U (en) |
-
2023
- 2023-05-17 CN CN202321210471.6U patent/CN219801870U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103545062B (en) | Auxiliary umbrella cover | |
| CN111091941A (en) | Pillar insulator type lightning arrester for integral electrified railway | |
| CN211294756U (en) | Combined split porcelain insulator | |
| CN102024543A (en) | Composite insulator support fixing gap line type arrester | |
| CN219801870U (en) | Cable cold-shrink terminal that sealing performance is good | |
| CN2836190Y (en) | Hanging insulator lightning arrester | |
| CN210182155U (en) | Lengthened insulator | |
| CN105390978B (en) | The anti-lightning strike broken string method of insulated over-head line | |
| CN209401374U (en) | A kind of rail traffic vehicles high-performance environment protection type DC traction cable | |
| CN201549438U (en) | Epoxy-enclosed contact arm sleeve | |
| CN203617048U (en) | Auxiliary umbrella cover | |
| CN101174766A (en) | Outdoor terminal of crosslinked electric cable compound insulation sleeve | |
| CN212113330U (en) | Insulator convenient to adjust distance | |
| CN212782894U (en) | Device for improving pollution flashover resistance of suspension insulator | |
| CN1235235C (en) | Capacity uniform voltage type stick shape suspending composite insulator | |
| CN105810370A (en) | Combined type transparent composite suspension insulator | |
| Fujimura | The evolution of porcelain insulator technology in Japan | |
| CN207896550U (en) | Solid insulation ring main unit | |
| CN2565117Y (en) | Improved composite cover metal oxide arrester | |
| CN201820656U (en) | Dynamic sealing part for high-voltage solid insulated switch | |
| CN201838971U (en) | Lightning arrester capable of preventing overhead conductor from being broken by lightning | |
| CN217769358U (en) | High-voltage wall bushing | |
| CN212724861U (en) | Dual lightning protection column type electroceramic insulator | |
| CN212257137U (en) | Outdoor composite insulation high-voltage charged body introducing device | |
| CN217240290U (en) | Insulating sealed crimping-free multi-loop junction box |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |