CN217902792U - Special low-inductance high-voltage coaxial cable - Google Patents

Abstract

The utility model discloses a special low inductance high voltage coaxial cable, which relates to the technical field of cable processing, wherein one end of a cable body is provided with a supporting and protecting mechanism, and the supporting and protecting mechanism comprises a shell, glass fibers, a soft column, dust-free rock wool rope filling, aluminum silicate fiber filling, a fixing hole and a limiting bolt; the utility model discloses earlier through the installation support protection mechanism on the polyolefin sheath on the cable for the cable surface in the whole casing need not to install the polyolefin sheath additional, simultaneously can be through rotating the spacing bolt on the fixed orifices, open cable surface's casing, make galvanized steel strip armor directly expose in the air, make things convenient for the staff to cut the cable, when being to cable junction, protective sheath and the inner liner of copper post conductor outside installation have avoided staff misoperation to lead to the copper post conductor to receive the damage.

Description

Special low-inductance high-voltage coaxial cable

Technical Field

The utility model relates to a cable processing technology field specifically is low inductance high voltage coaxial cable of special type.

Background

The coaxial cable is a cable with two concentric conductors, the conductor and the shielding layer share the same axis, the most common coaxial cable is composed of copper wire conductors isolated by insulating materials, another layer of annular conductor and an insulator thereof are arranged outside the inner layer of insulating materials, then the whole cable is wrapped by a sheath made of polyvinyl chloride or Teflon materials, a pair of conductors for transmitting information are sleeved outside an inner conductor (a thin core) according to a layer of cylindrical outer conductor, the two conductors are isolated from each other by the insulating materials, the centers of the outer conductor and a central shaft core wire are on the same axis, so the coaxial cable is called as a coaxial cable, and the coaxial cable is designed in such a way so as to prevent external electromagnetic waves from interfering with the transmission of abnormal signals;

coaxial cables can be classified according to their diameter: thick coaxial cable and thin coaxial cable, thick coaxial cable is suitable for the relatively large-scale local network, its standard distance is long, the reliability is high, because do not need to cut off the cable while installing, therefore can adjust the network entry position of the computer flexibly as required, but thick cable network must install the transceiver cable, the installation difficulty is large, so the overall cost is high, on the contrary, thin cable installation is then relatively simple, the cost is low, but because the installation process will cut off the cable, both ends must be installed Basic Network Connector (BNC), then connect at both ends of T-type connector, so produce the bad hidden danger easily when connecting and connecting too much, it is one of the most common faults that the Ethernet in the operation takes place at present;

as shown in fig. 1, the conventional thin cable c has a structure including a copper conductor, an insulating material, an aluminum foil shield, a tissue shield and a sheath from inside to outside, and when the thin cable is installed, the cable needs to be cut off, and the sheath, the braided shield, the aluminum foil shield and the insulation on the cable surface at the cut-off position are exposed, so that a worker can conveniently connect the conductors on the cable, however, when the cable is cut, the worker damages the copper conductor inside the cable due to uneven control of the cutting force, which affects the normal use of the cable, and meanwhile, the diameter of the conventional metal inner conductor is small, and the diameters of the inner insulating layer and the metal outer conductor are large, which reduces the working voltage of the coaxial cable and increases the impedance;

for this reason we propose special low inductance high voltage coaxial cables.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a special type hangs down inductance high pressure coaxial cable and cuts when solving the cable installation and cause metal conductor to damage easily and cable itself is unfavorable for the problem of high power pulse device work.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the special low-inductance high-voltage coaxial cable comprises a cable body, wherein one end of the cable body is provided with a support protection mechanism, the support protection mechanism comprises a shell, glass fibers, soft columns, dust-free rock wool rope filling, aluminum silicate fiber filling, fixing holes and limiting bolts, the shell is symmetrically arranged at one end of the cable body, the fixing holes are symmetrically formed in two sides of the shell, and the limiting bolts are arranged on one side of the fixing holes;

the utility model discloses a portable rock wool anti-theft device, including shell, dust-free rock wool rope, glass fiber, aluminium silicate fiber, adhesion, the inner wall of one side of shell evenly is fixed with the soft post through the adhesion, and is located one side of soft post and installs dustless rock wool rope and fill, the opposite face with the shell is filled to dustless rock wool rope, and the outer wall that is located the soft post evenly installs glass fiber, the inner wall of one side that dustless rock wool rope filled is fixed with aluminium silicate fiber through the adhesion and fills.

Further, the cable body includes polyolefin sheath, galvanized steel strip armor, aluminium foil shielding, polyethylene insulation, inner liner, protective sheath and copper post conductor, galvanized steel strip armor is installed to the inner wall of polyolefin sheath, and is located the inner wall of galvanized steel strip armor and installs the aluminium foil shielding, polyethylene insulation is installed to aluminium foil shielding's inner wall, and is located the insulating inner wall of polyethylene and installs the inner liner, the inner wall installation protective sheath of inner liner, and the inner wall parcel that is located the protective sheath has the copper post conductor.

Furthermore, the galvanized steel strip armor, the aluminum foil shield, the polyethylene insulation, the inner liner, the protective sleeve and the copper column conductor in the cable body penetrate through the aluminum silicate fiber filler, and the galvanized steel strip armor is abutted to the inner wall of the aluminum silicate fiber filler.

Furthermore, the outer wall of the polyolefin sheath is fixed with the inner wall of the shell through adhesion, and the shell is made of polytetrafluoroethylene.

Furthermore, the material of soft post is rubber, and the quantity of soft post is six, the material of protective sheath and copper post conductor is the same.

Compared with the prior art, the beneficial effects of the utility model are that:

1. in the utility model, the installation and support protection mechanism is arranged on the polyolefin sheath on the cable, so that the surface of the cable in the whole shell is not required to be additionally provided with the polyolefin sheath, and meanwhile, the shell on the surface of the cable can be opened by rotating the limit bolt on the fixed hole, so that the galvanized steel strip armor is directly exposed in the air, the cable is convenient for workers to cut, and meanwhile, when the cable is connected, the protection sleeve and the inner liner are installed outside the copper column conductor, thereby avoiding the damage of the copper column conductor caused by the misoperation of the workers;

2. in the utility model, through the protective sleeve and the inner liner which are arranged outside the copper column conductor, the material of the whole protective sleeve is the same as that of the copper column conductor, so that the diameter of the whole copper column conductor is increased, the resistance is reduced, the voltage flowing through the coaxial cable is increased, the loss of electric quantity is reduced, and the high-power pulse device is beneficial to work;

drawings

FIG. 1 is a schematic view of a conventional coaxial cable wrapped in a unitary structure;

fig. 2 is a schematic view of the overall structure of the low-inductance high-voltage coaxial cable of the present invention;

FIG. 3 is a schematic sectional view taken along line a-a of the present invention;

fig. 4 is a schematic view of the cross-sectional structure at b-b of the present invention.

In the figure: 1. a cable body; 101. a polyolefin jacket; 102. galvanizing steel tape armoring; 103. shielding by aluminum foil; 104. polyethylene insulation; 105. an inner liner layer; 106. a protective sleeve; 107. a copper pillar conductor; 8. a support protection mechanism; 801. a housing; 802. glass fibers; 803. a soft column; 804. filling a dust-free rock wool rope; 805. filling aluminum silicate fibers; 806. a fixing hole; 807. and a limiting bolt.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the 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.

Referring to fig. 1-4, the present invention provides a technical solution:

as shown in fig. 1, the conventional coaxial thin cable c has the structure of a copper conductor, an insulating material, an aluminum foil shield 103, a tissue shield and a sheath from inside to outside, and in the daily cable stripping and connecting process, the copper conductor in the cable needs to be exposed, so that a worker needs to use a special tool to perform annular cutting, and a harder sheath needs to be pulled out in the cutting process, and the copper conductor may be damaged due to improper operation;

therefore, the special low-inductance high-voltage coaxial cable in the utility model is provided with a plurality of groups of supporting and protecting mechanisms 8 on the cable, the outer wall of the whole polyolefin sheath 101 is sleeved and fixed with the shell 801, and the diameter of the whole shell 801 is larger than that of the cable body 1, so that the shell is firstly contacted with the ground when the cable body 1 is dragged, the material of the whole shell is polytetrafluoroethylene, the shell belongs to a high-molecular compound, the physical property is better, and the cable is wear-resistant and corrosion-resistant;

when the cable body 1 needs to be cut, firstly, the limiting bolt 807 in the fixing hole 806 on the shell 801 is unscrewed, the shell 801 fixed on the cable body 1 can be taken down, the whole shell 801 is filled with the glass fiber 802 and the soft column 803, the whole soft column 803 is made of rubber, the shell plays a role in supporting the cable body 1 and buffering, after the whole shell 801 is opened, the dust-free rock wool rope filling 804 is exposed in the air, at the moment, the cable is cut by adopting a special tool, compared with the mode of directly cutting the polyolefin sheath 101 on the cable body 1, the cable cutting is convenient and rapid, the inside of the dust-free rock wool rope filling 804 is filled with the aluminum silicate fiber 805, the aluminum silicate fiber filling 805 has good mechanical vibration resistance and small thermal expansion, the impact resistance of the cable body 1 is improved, the inner wall of the aluminum silicate fiber filling 805 is the galvanized steel strip armor 102, the installation of the galvanized steel strip armor 102 is used for preventing animals and plants from being damaged and enhancing the abrasion resistance, the compression resistance of the cable is improved, the service life of the cable is further prolonged, the aluminum foil shielding 103 is positioned inside of the galvanized steel strip 102 for preventing the electromagnetic field from interfering with the electromagnetic field, and the signal conductor from being influenced by the external signal diffusion and the electromagnetic field interference of the electromagnetic field interference can be prevented;

after the cable body 1 is completely cut, the copper column conductor 107 is stripped, and the inner liner 105 and the protective sleeve 106 are arranged on the outer side of the copper column conductor 107, so that the copper column conductor 107 cannot be damaged by misoperation in the cutting process of workers;

the whole protective sleeve 106 is made of copper, the same as the copper column conductor 107, so that the diameter of the whole copper column conductor 107 is increased, under the condition of the same length, the larger the cross-sectional area is, the smaller the resistance is, the smaller the loss of current on the cable is, meanwhile, the thickness of the polyethylene insulation 104 is larger, the working voltage and the impedance of the coaxial cable can be adjusted by the diameters of the inner insulation layer and the metal outer conductor, generally speaking, the thinner the inner insulation layer is, the lower the working voltage is, the smaller the impedance is, in order to ensure a certain working voltage, in order to reduce the impedance, the diameters of the metal inner conductor, the inner insulation layer and the metal outer conductor need to be increased simultaneously, the requirement of a high-power pulse power device is met, and the diameter of the copper column conductor 107 is increased by the additionally arranged protective sleeve 106, and meanwhile, the protective effect can be achieved;

the sheath of the whole cable body 1 is made of polyolefin, and polypropylene in the polyolefin is thermoplastic synthetic resin with excellent performance, has the characteristics of small specific gravity, no toxicity, easiness in processing, high impact strength, high bending resistance, high electric insulation and the like, and is suitable for the sheath of the cable.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. Special type low inductance high voltage coaxial cable, including cable body (1), its characterized in that: a supporting protection mechanism (8) is installed at one end of the cable body (1), the supporting protection mechanism (8) comprises a shell (801), glass fibers (802), soft columns (803), dust-free rock wool rope filling (804), aluminum silicate fiber filling (805), fixing holes (806) and limiting bolts (807), the shell (801) is symmetrically installed at one end of the cable body (1), the fixing holes (806) are symmetrically formed in two sides of the shell (801), and the limiting bolts (807) are installed on one side of the fixing holes (806);

the utility model discloses a glass fiber reinforced plastic composite material packing device, including shell (801), one side inner wall of shell (801) is evenly fixed with flexible column (803) through the adhesion, and the one side that is located flexible column (803) is installed dustless rock wool rope and is filled (804), the opposite face of dustless rock wool rope packing (804) and shell (801), and the outer wall that is located flexible column (803) evenly installs glass fiber (802), one side inner wall that dustless rock wool rope was filled (804) is fixed with aluminium silicate fiber through the adhesion and fills (805).

2. The special low-inductance high-voltage coaxial cable of claim 1, wherein: the cable comprises a cable body (1) and is characterized in that the cable body comprises a polyolefin sheath (101), galvanized steel tape armoring (102), an aluminum foil shield (103), polyethylene insulation (104), an inner liner (105), a protective sleeve (106) and a copper column conductor (107), the galvanized steel tape armoring (102) is installed on the inner wall of the polyolefin sheath (101), the aluminum foil shield (103) is installed on the inner wall of the galvanized steel tape armoring (102), the polyethylene insulation (104) is installed on the inner wall of the aluminum foil shield (103), the inner liner (105) is installed on the inner wall of the polyethylene insulation (104), the protective sleeve (106) is installed on the inner wall of the inner liner (105), and the copper column conductor (107) is wrapped on the inner wall of the protective sleeve (106).

3. The special low-inductance high-voltage coaxial cable of claim 2, wherein: the cable is characterized in that a galvanized steel strip armor (102), an aluminum foil shield (103), a polyethylene insulator (104), an inner liner (105), a protective sleeve (106) and a copper column conductor (107) in the cable body (1) penetrate through aluminum silicate fiber filling (805), and the galvanized steel strip armor (102) is abutted to the inner wall of the aluminum silicate fiber filling (805).

4. The special low-inductance high-voltage coaxial cable of claim 2, wherein: the outer wall of the polyolefin sheath (101) is fixed with the inner wall of the shell (801) through adhesion, and the shell (801) is made of polytetrafluoroethylene.

5. The special low-inductance high-voltage coaxial cable of claim 2, wherein: the soft columns (803) are made of rubber, the number of the soft columns (803) is six, and the protective sleeve (106) and the copper column conductor (107) are made of the same material.

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