Low-smoke halogen-free variable frequency cable

Abstract

The utility model relates to the technical field of variable-frequency cables, in particular to a low-smoke halogen-free variable-frequency cable, which comprises a conductor wire core, a first conductive component is fixedly connected to the surface of the conductor wire core, an insulating layer is fixedly connected to the surface of the first conductive component, a first interlayer is fixedly connected to the surface of the insulating layer, and a second interlayer is fixedly connected to the surface of the first interlayer. And the surface of the first interlayer is fixedly connected with a second conductive assembly. According to the utility model, through the arrangement of the shielding assembly, the first protection assembly and the second protection assembly, the metal shielding layer, the isolation layer and the oxygen isolation layer cooperate with each other in use, so that electromagnetic waves can be inhibited from being emitted outwards, and the cable also can be used as a channel for short-circuit current and can play a role in protecting the conductor wire cores; through the cooperation of the filling layer, the inner protection layer, the metal armor, the metal sheath layer, the fireproof layer and the outer sheath, the stability of the whole structure of the device can be improved, the device is not liable to be damaged, and the effect of improving the practicability of the device is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of frequency conversion cables, in particular to a low-smoke halogen-free frequency conversion cable. Background Art

[0002] With the advancement of electric power technology, the energy-saving effect of frequency conversion devices is very obvious. The use of frequency conversion speed regulation motors in high-power motors can save 30% of electricity for the entire generator set. And after using frequency conversion speed regulation, the soft start of the motor is realized, the motor works smoothly, the motor bearing wear is reduced, and the motor service life and maintenance cycle are extended. Therefore, frequency conversion speed regulation technology has been widely used in industries such as petroleum, metallurgy, power generation, railways, and mining. When using it, a frequency conversion cable is often used.

[0003] However, the overall structural stability of the existing frequency conversion cable is poor, and it is difficult to protect the conductor core during use and to extend the service life of the device, which causes the device to be easily damaged and affects work. Utility Model Content

[0004] The utility model aims to provide a low-smoke halogen-free frequency conversion cable to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A low-smoke halogen-free frequency conversion cable comprises a conductor core, a first conductive component is fixedly connected to the surface of the conductor core, an insulating layer is fixedly connected to the surface of the first conductive component, a first barrier is fixedly connected to the surface of the insulating layer, a second conductive component is fixedly connected to the surface of the first barrier, a shielding component is fixedly connected to the surface of the second conductive component, a first protective component is sleeved on the surface of the shielding component, and a second protective component is fixedly connected to the surface of the first protective component.

[0007] Preferably, the first conductive component comprises an inner semi-conductive layer, the interior of the inner semi-conductive layer is fixedly connected to the surface of the conductor core, and the surface of the inner semi-conductive layer is fixedly connected to the second spacer.

[0008] Preferably, the second conductive component comprises an outer semiconductive layer, the inner part of the outer semiconductive layer is fixedly connected to the surface of the first spacer, and the surface of the outer semiconductive layer is fixedly connected to the third spacer.

[0009] Preferably, the shielding assembly comprises a metal shielding layer, the interior of the metal shielding layer is fixedly connected to the surface of the third isolation layer, the surface of the metal shielding layer is fixedly connected to the isolation layer, and the surface of the isolation layer is fixedly connected to the oxygen isolation layer.

[0010] Preferably, the first protection component comprises a filling layer, the interior of the filling layer is sleeved on the surface of the oxygen-isolating layer, and the surface of the filling layer is fixedly connected with an inner protective layer.

[0011] Preferably, the second protection component includes a metal armor, the interior of the metal armor is fixedly connected to the surface of the inner protective layer, the surface of the metal armor is fixedly connected to a metal sheath layer, the surface of the metal sheath layer is fixedly connected to a fire-resistant layer, and the surface of the fire-resistant layer is fixedly connected to an outer sheath.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The low-smoke halogen-free frequency conversion cable, through the arrangement of a shielding component, a first protection component and a second protection component, can utilize the cooperation between a metal shielding layer, an isolation layer and an oxygen isolation layer to suppress the external emission of electromagnetic waves when in use, and can also serve as a passage for short-circuit current, and can play a protective role for the conductor core. The coordination between a filling layer, an inner protective layer, a metal armor, a metal sheath layer, a fire-resistant layer and an outer sheath can improve the stability of the overall structure of the device and make it less prone to damage, thereby achieving the effect of improving the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is an overall schematic diagram of the utility model;

[0015] Figure 2 It is a schematic diagram of the first conductive component, the second conductive component and the shielding component of the utility model;

[0016] Figure 3 This is a schematic diagram of the first protection component and the second protection component of the utility model;

[0017] Figure 4 It is a partial cross-sectional schematic diagram of the utility model.

[0018] In the figure: 1. conductor core; 2. first conductive component; 201. inner semi-conductive layer; 202. second barrier layer; 3. insulating layer; 4. first barrier layer; 5. second conductive component; 501. outer semi-conductive layer; 502. third barrier layer; 6. shielding component; 601. metal shielding layer; 602. isolation layer; 603. oxygen barrier layer; 7. first protective component; 701. filling layer; 702. inner protective layer; 8. second protective component; 801. metal armor; 802. metal sheath layer; 803. fire-resistant layer; 804. outer sheath. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-Figure 4 As shown, a technical solution provided by the utility model:

[0021] A low-smoke halogen-free frequency conversion cable, comprising a conductor core 1, a first conductive component 2 is fixedly connected to the surface of the conductor core 1, an insulating layer 3 is fixedly connected to the surface of the first conductive component 2, a first interlayer 4 is fixedly connected to the surface of the insulating layer 3, a second conductive component 5 is fixedly connected to the surface of the first interlayer 4, a shielding component 6 is fixedly connected to the surface of the second conductive component 5, a first protective component 7 is sleeved on the surface of the shielding component 6, and a second protective component 8 is fixedly connected to the surface of the first protective component 7;

[0022] By setting the shielding component 6, the first protection component 7 and the second protection component 8, the metal shielding layer 601, the isolation layer 602 and the oxygen isolation layer 603 can be used to suppress the external emission of electromagnetic waves during use, and can also serve as a channel for short-circuit current, which can play a protective role for the conductor core 1. The filling layer 701, the inner protective layer 702, the metal armor 801, the metal sheath layer 802, the fire-resistant layer 803 and the outer sheath 804 can improve the stability of the overall structure of the device and make it less prone to damage, thereby achieving the effect of improving the practicality of the device.

[0023] In this embodiment, preferably, the first conductive component 2 includes an inner semi-conductive layer 201, the inner part of the inner semi-conductive layer 201 is fixedly connected to the surface of the conductor core 1, and the surface of the inner semi-conductive layer 201 is fixedly connected to the second spacer 202;

[0024] In this embodiment, preferably, the second conductive component 5 includes an outer semiconductive layer 501, the inner part of the outer semiconductive layer 501 is fixedly connected to the surface of the first spacer 4, and the surface of the outer semiconductive layer 501 is fixedly connected to the third spacer 502;

[0025] In this embodiment, preferably, the shielding assembly 6 includes a metal shielding layer 601, the interior of the metal shielding layer 601 is fixedly connected to the surface of the third barrier layer 502, the surface of the metal shielding layer 601 is fixedly connected to the isolation layer 602, and the surface of the isolation layer 602 is fixedly connected to the oxygen isolation layer 603;

[0026] By setting the shielding component 6, the metal shielding layer 601, the isolation layer 602 and the oxygen isolation layer 603 can be used to suppress the external emission of electromagnetic waves, and can also serve as a channel for short-circuit current, thereby achieving the effect of protecting the conductor core 1;

[0027] In this embodiment, preferably, the first protection component 7 includes a filling layer 701, the interior of the filling layer 701 is sleeved on the surface of the oxygen barrier layer 603, and the surface of the filling layer 701 is fixedly connected with an inner protective layer 702;

[0028] In this embodiment, preferably, the second protection component 8 includes a metal armor 801, the interior of the metal armor 801 is fixedly connected to the surface of the inner protective layer 702, the surface of the metal armor 801 is fixedly connected to a metal sheath layer 802, the surface of the metal sheath layer 802 is fixedly connected to a fire-resistant layer 803, and the surface of the fire-resistant layer 803 is fixedly connected to an outer sheath 804;

[0029] Through the arrangement of the first protection component 7 and the second protection component 8, when in use, the coordination between the filling layer 701, the inner protective layer 702, the metal armor 801, the metal sheath layer 802, the fire-resistant layer 803 and the outer sheath 804 can improve the stability of the overall structure of the device and make it less prone to damage, thereby achieving the effect of improving the practicality of the device.

[0030] When a low-smoke halogen-free frequency conversion cable of this embodiment is used, the device is connected to other equipment, and then the conductor core, inner semi-conductive layer, insulating layer and outer semi-conductive layer cooperate with each other to work, and then the cooperation between the metal shielding layer 601, the isolation layer 602 and the oxygen isolation layer 603 can suppress the external emission of electromagnetic waves, and can also serve as a channel for short-circuit current, which can protect the conductor core 1. The cooperation between the filling layer 701, the inner protective layer 702, the metal armor 801, the metal sheath layer 802, the fire-resistant layer 803 and the outer sheath 804 can improve the stability of the overall structure of the device and make it not easy to be damaged.

[0031] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A low-smoke halogen-free frequency conversion cable, comprising a conductor core (1), characterized in that: The surface of the conductor core (1) is fixedly connected to a first conductive component (2), the surface of the first conductive component (2) is fixedly connected to an insulating layer (3), the surface of the insulating layer (3) is fixedly connected to a first barrier layer (4), the surface of the first barrier layer (4) is fixedly connected to a second conductive component (5), the surface of the second conductive component (5) is fixedly connected to a shielding component (6), the surface of the shielding component (6) is sleeved with a first protective component (7), and the surface of the first protective component (7) is fixedly connected to a second protective component (8).

2. The low-smoke halogen-free frequency conversion cable according to claim 1, characterized in that: The first conductive component (2) comprises an inner semi-conductive layer (201), the interior of the inner semi-conductive layer (201) is fixedly connected to the surface of the conductor core (1), and the surface of the inner semi-conductive layer (201) is fixedly connected to a second spacer (202).

3. The low-smoke halogen-free frequency conversion cable according to claim 1, characterized in that: The second conductive component (5) comprises an outer semiconductive layer (501), the interior of the outer semiconductive layer (501) is fixedly connected to the surface of the first spacer (4), and the surface of the outer semiconductive layer (501) is fixedly connected to the third spacer (502).

4. The low-smoke halogen-free frequency conversion cable according to claim 3, characterized in that: The shielding component (6) comprises a metal shielding layer (601), the interior of the metal shielding layer (601) is fixedly connected to the surface of the third isolation layer (502), the surface of the metal shielding layer (601) is fixedly connected to the isolation layer (602), and the surface of the isolation layer (602) is fixedly connected to the oxygen isolation layer (603).

5. The low-smoke halogen-free frequency conversion cable according to claim 1, characterized in that: The first protection component (7) comprises a filling layer (701), the interior of the filling layer (701) is sleeved on the surface of the oxygen isolation layer (603), and the surface of the filling layer (701) is fixedly connected to an inner protective layer (702).

6. The low-smoke halogen-free frequency conversion cable according to claim 1, characterized in that: The second protection component (8) comprises a metal armor (801), the interior of the metal armor (801) is fixedly connected to the surface of the inner protective layer (702), the surface of the metal armor (801) is fixedly connected to a metal sheath layer (802), and the surface of the metal sheath layer (802) is fixedly connected to a fire-resistant layer (803), An outer sheath (804) is fixedly connected to the surface of the fire-resistant layer (803).

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