CN204720210U - Screened cable - Google Patents

Abstract

The utility model discloses a double-shielded cable, which is characterized in that it comprises a conductor, an insulating layer and a protective layer, the insulating layer is sheathed outside the conductor, and a steel strip layer is arranged between the insulating layer and the protective layer. The first shielding layer is set on one side of the steel strip layer, the second shielding layer is set on the other side of the steel strip layer, the first shielding layer is fixedly connected with the insulating layer, and the second shielding layer is connected with the insulating layer. The protective layer is fixed connection. The conductor of the utility model is used for the transmission of electric power or information. The insulating layer can play an insulating role. The steel belt layer plays the role of supporting the inside and also plays a role of protection. The shielding layers on both sides of the steel belt layer play a shielding role. , Double-layer shielding, good shielding effect, can prevent both internal signal interference and external signal interference, and the protective layer plays a protective role.

Description

double shielded cable

technical field

The utility model relates to the field of electricity, more specifically, the utility model relates to a double-shielded cable.

Background technique

At present, the cable is made of one or more mutually insulated conductors and an outer insulating layer, and the wires that transmit power or information from one place to another, especially the cables that transmit information, during use, due to their own Or the cause of external force causes the cable to break, which causes signal interference, or signal interference between different conductors in the same cable, affecting the transmission of information.

Utility model content

The purpose of the utility model is to solve the existing above-mentioned problems and provide a double-shielded cable.

In order to achieve the above purpose, the technical solution of the utility model is a double-shielded cable, which is characterized in that it includes a conductor, an insulating layer and a protective layer, the insulating layer is sleeved outside the conductor, and the insulating layer and the protective layer A steel strip layer is arranged between them, the first shielding layer is arranged on one side of the steel strip layer, and the second shielding layer is arranged on the other side of the steel strip layer, and the first shielding layer is fixedly connected with the insulating layer, and the The second shielding layer is fixedly connected to the protective layer. The conductor is used for the transmission of electricity or information. The insulating layer can play the role of insulation. The steel belt layer plays the role of supporting the inside and also plays the role of protection. The shielding layers on both sides of the steel belt layer play the role of shielding. The double layer Shielding, the shielding effect is good, it can not only prevent internal signal interference, but also prevent external signal interference, and the protective layer plays a protective role.

Preferably, the first shielding layer includes a first shielding inner layer and a first shielding outer layer, and the first shielding inner layer is fixedly connected to the first shielding outer layer. The first shielding layer is divided into two layers, bonded together on both sides, so that in the event of a crack in one layer, the other layer can still perform the shielding function.

Preferably, the second shielding layer includes a second shielding inner layer and a second shielding outer layer, and the second shielding inner layer is fixedly connected to the second shielding outer layer. The second shielding layer is divided into two layers, bonded together on both sides so that in the event of a crack in one layer, the other layer can still perform the shielding function.

Preferably, a first water-blocking layer is provided between the first shielding layer and the steel strip layer, and the first water-blocking layer is fixedly connected to the first shielding layer. The first water-blocking layer can prevent water from entering into the cable when the cable breaks and causing damage to the conductors in the cable.

Preferably, a second water-blocking layer is provided between the steel strip layer and the second shielding layer, and the second water-blocking layer is fixedly connected to the second shielding layer. The second water-blocking layer can prevent water from entering into the cable when the cable breaks and causing damage to the conductors in the cable.

Preferably, a flame retardant layer is provided outside the protective layer, and the flame retardant layer is fixedly connected with the protective layer. The flame retardant layer can prevent the cable from igniting at high temperature.

The utility model has the following beneficial effects: the conductor is used for the transmission of electric power or information, the insulating layer can play the role of insulation, the steel strip layer plays the role of supporting the inside, and also plays the role of protection, the shielding on both sides of the steel strip layer The layer plays a shielding role, and the double-layer shielding has a good shielding effect, which can prevent internal signal interference and external signal interference, and the protective layer plays a protective role.

Description of drawings

Fig. 1 is a kind of structural representation of the utility model.

1. Conductor, 2. Insulation layer, 3. First shielding layer, 31. First shielding inner layer, 32. First shielding outer layer, 4. First water blocking layer, 5. Steel strip layer, 6. Second Water blocking layer, 7, second shielding layer, 71, second shielding inner layer, 72, second shielding outer layer, 8, protective layer, 9, flame retardant layer.

Detailed ways

Below in conjunction with specific embodiment, and in conjunction with accompanying drawing, the technical scheme of the utility model is further described:

Embodiment: double-shielded cable (see attached drawing 1), including conductor 1, insulating layer 2 and protective layer 8, the insulating layer 2 is set outside the conductor 1, and the insulating layer 2 and protective layer 8 A steel strip layer 5 is set, the first shielding layer 3 is set on one side of the steel strip layer 5, and the second shielding layer 7 is set on the other side of the steel strip layer 5, and the first shielding layer 3 and the insulating layer 2 is fixedly connected, the second shielding layer 7 is fixedly connected to the protective layer 8, the first shielding layer 3 includes a first shielding inner layer 31 and a first shielding outer layer 32, and the first shielding inner layer 31 is fixedly connected with the first shielding outer layer 32, and the second shielding layer 7 includes a second shielding inner layer 71 and a second shielding outer layer 72, and the second shielding inner layer 71 and the second shielding outer layer 72 Fixedly connected, the first water-blocking layer 4 is set between the first shielding layer 3 and the steel strip layer 5, the first water-blocking layer 4 is fixedly connected to the first shielding layer 3, and the steel strip layer 5 and the second shielding layer 7 are provided with a second water-blocking layer 6, the second water-blocking layer 6 is fixedly connected to the second shielding layer 7, and the outer side of the protective layer 8 is provided with a flame-retardant layer 9, and the The flame-retardant layer 9 is fixedly connected with the protective layer 8.

The conductor is used for the transmission of electricity or information. The insulating layer can play the role of insulation. The steel belt layer plays the role of supporting the inside and also plays the role of protection. The shielding layers on both sides of the steel belt layer play the role of shielding. The double layer Shielding, the shielding effect is good, it can not only prevent internal signal interference, but also prevent external signal interference. Under the circumstances, the other layer can still play a shielding role. The second shielding layer is divided into two layers, and the two sides are bonded together. In this way, in the case of a crack in one layer, the other layer can still play a shielding role. The first shielding layer The water layer and the second water-blocking layer can prevent water from entering the cable when the cable breaks, causing damage to the conductors in the cable. The flame-retardant layer can prevent the cable from igniting at high temperature. The first shielding layer is fixed together with the insulating layer, and the second shielding layer is fixed together with the protective layer, so that when the cable is pulled, bent, etc., the first shielding layer is pulled and bent with the insulating layer, and the second shielded layer is pulled and bent with the protective layer. In this way, the shielding layer is not easy to break, and each shielding layer includes a double-layer structure. In the case of one layer being broken, the other layer of thermal energy plays a shielding role, which greatly improves the shielding effect, thereby increasing the service life of the cable.

The above-mentioned specific embodiments are used to explain the utility model, rather than to limit the utility model. Within the spirit of the utility model and the protection scope of the claims, any modifications and changes made to the utility model all fall into the scope of the utility model. A new type of protection.

Claims (6)

1. A double-shielded cable, characterized in that it includes a conductor, an insulating layer and a protective layer, the insulating layer is sleeved outside the conductor, a steel tape layer is set between the insulating layer and the protective layer, and the A first shielding layer is set on one side of the steel strip layer, a second shielding layer is set on the other side of the steel strip layer, the first shielding layer is fixedly connected to the insulating layer, and the second shielding layer is fixed to the protective layer connect. 2. The double-shielded cable according to claim 1, wherein the first shielding layer comprises a first shielding inner layer and a first shielding outer layer, and the first shielding inner layer and the first shielding outer layer layer fixed connections. 3. The double-shielded cable according to claim 1, wherein the second shielding layer comprises a second shielding inner layer and a second shielding outer layer, and the second shielding inner layer and the second shielding outer layer layer fixed connections. 4. The double-shielded cable according to claim 1, characterized in that, a first water-blocking layer is set between the first shielding layer and the steel strip layer, and the first water-blocking layer and the first shielding layer Fixed connection. 5. The double-shielded cable according to claim 1, characterized in that, a second water-blocking layer is set between the steel strip layer and the second shielding layer, and the second water-blocking layer and the second shielding layer Fixed connection. 6. The double-shielded cable according to any one of claims 1-5, wherein a flame-retardant layer is provided outside the protective layer, and the flame-retardant layer is fixedly connected to the protective layer.