CN209544002U - A kind of shielded cable and its component - Google Patents

Abstract

The utility model discloses a kind of shielded cable and its components, including core and protective jacket, the core is coated in the protective jacket, it further include set on the shielded layer between the core and the protective jacket, the shielded layer includes the first polyester layer for stacking gradually bonding from outside to inside, the first aluminium foil layer, the second polyester layer and the second aluminium foil layer.The side of first aluminium foil layer and the first polyester layer bond, and the other side and the second polyester layer bond, and the first polyester layer and the second polyester layer carry out signal shielding to the conductive layer of the first aluminium foil layer two sides respectively, can effectively shield interference signal；The first polyester layer, the first aluminium foil layer, the second polyester layer and the second aluminium foil layer stable connection of laminate adhesive simultaneously, is also able to maintain original structure in that case of ben, prevent from gap occur between shielded layer and the shield effectiveness that reduces shielded layer.

Description

A kind of shielded cable and its component

Technical field

The utility model relates to electric operation dispatching system technical field built in antenna for base station more particularly to a kind of shielded cables and its group Part.

Background technique

Shielded cable is the transmission line that signal wire is wrapped up using metal net shaped braiding layer.Existing shielded cable is compiled Tissue layer generally uses red metal or tin-coated copper.Shielding is the transmission performance in order to guarantee the system in the case where there is electromagnetic interference environment, this In anti-interference should include two aspects, that is, ability and the outside electromagnetic radiation of system itself that resist extraneous electromagnetic interference are dry The ability disturbed.Therefore, how a kind of shielded cable that shielding properties is strong is provided, the skill of those skilled in the art's urgent need to resolve is become Art problem.

Utility model content

The technical problem to be solved by the utility model is to provide the cables and its group of a kind of effectively shielding interference signal Part.

In order to solve the above-mentioned technical problem, the technical solution adopted in the utility model are as follows: a kind of shielded cable, including core And protective jacket, the core are coated in the protective jacket, further include set on the shielding between the core and the protective jacket Layer, the shielded layer include the first polyester layer for stacking gradually bonding from outside to inside, the first aluminium foil layer, the second polyester layer and Second aluminium foil layer.

Further, first polyester layer and the second polyester layer are self-adhesion polyester belt.

Further, the core includes conductor bare copper wire and protective layer, and the conductor bare copper wire is coated on the protection In layer, the value range of the line footpath of the conductor bare copper wire is 0.7-0.8mm.

Further, for the material that the protective layer uses for PVC, the Thickness range of protective layer is 0.3-0.4mm.

Further, the material that the protective jacket uses is TPE.

Further, the quantity of the core is multiple groups, further includes the strengthening core being coated in the protective jacket, multiple groups institute Core is stated to be arranged around the strengthening core.

In order to solve the above-mentioned technical problem, the technical solution that the utility model also uses are as follows: a kind of shielded cable component, packet Include above-mentioned shielded cable.

It further, further include connector and line bank, one end of the shielded cable is connect with the connector, shielding The other end of cable is connect with the line bank.

Further, the connector includes connected connector male head and connector female end.

The utility model has the beneficial effects that: the side of the first aluminium foil layer and the first polyester layer bond, the other side with The bonding of second polyester layer, the first polyester layer and the second polyester layer carry out letter to the conductive layer of the first aluminium foil layer two sides respectively Number shielding, can effectively shield interference signal；The first polyester layer, the first aluminium foil layer, the second polyester layer of laminate adhesive simultaneously With the second aluminium foil layer stable connection, it is also able to maintain original structure in that case of ben, prevents from occurring gap between shielded layer and dropping The shield effectiveness of low shielded layer.

Detailed description of the invention

Fig. 1 is the sectional view of the shielded cable of the utility model embodiment one；

Fig. 2 is the structural schematic diagram of the shielded cable component of the utility model embodiment one.

Label declaration:

1, core；

2, protective jacket；

3, the first polyester layer；

4, the first aluminium foil layer；

5, the second polyester layer；

6, the second aluminium foil layer；

7, conductor bare copper wire；

8, protective layer；

9, strengthening core；

10, connector；

11, line bank.

Specific embodiment

For technology contents, the objects and the effects that the utility model is described in detail, below in conjunction with embodiment and match Attached drawing is closed to be explained.

The design of the utility model most critical is: the side of the first aluminium foil layer and the first polyester layer bond, the other side It is bonded with the second polyester layer, the first polyester layer and the second polyester layer carry out signal to the conductive layer of the first aluminium foil layer two sides Shielding.

Referring to Fig.1 and 2, a kind of shielded cable, including core 1 and protective jacket 2, the core 1 are coated on described anti- Further include the shielded layer set between the core 1 and the protective jacket 2 in sheath 2, the shielded layer include from outside to inside according to The first polyester layer 3, the first aluminium foil layer 4, the second polyester layer 5 and the second aluminium foil layer 6 of secondary laminate adhesive.

The structural principle of the utility model is summarized as follows: shielded layer includes the first polyester for stacking gradually bonding from outside to inside Belt, the first aluminium foil layer, the second polyester layer and the second aluminium foil layer, the side of the first aluminium foil layer and the first polyester layer bond, The other side and the second polyester layer bond, the first polyester layer and the second polyester layer to the conductive layers of the first aluminium foil layer two sides into Row signal shielding prevents interference signal from passing through shielded layer.

As can be seen from the above description, the utility model has the beneficial effects that: the side of the first aluminium foil layer and the first polyester belt Layer bonding, the other side and the second polyester layer bond, and the first polyester layer and the second polyester layer are respectively to the first aluminium foil layer two The conductive layer of side carries out signal shielding, can effectively shield interference signal；First polyester layer of laminate adhesive, the first aluminium foil simultaneously Layer, the second polyester layer and the second aluminium foil layer stable connection, are also able to maintain original structure in that case of ben, prevent shielded layer it Between there is gap and reduce the shield effectiveness of shielded layer.

Further, first polyester layer 3 and the second polyester layer 5 are self-adhesion polyester belt.

Further, the core 1 includes conductor bare copper wire 7 and protective layer 8, and the conductor bare copper wire 7 is coated on described In protective layer 8, the value range of the line footpath of the conductor bare copper wire 7 is 0.7-0.8mm.

Seen from the above description, protective layer plays a protective role to conductor bare copper wire.

Further, for the material that the protective layer 8 uses for PVC, the Thickness range of protective layer 8 is 0.3- 0.4mm。

Seen from the above description, there is preferable mechanical performance using the protective layer of PVC material and compared with high-tensile, adds The structural strength of strong core.

Further, the material that the protective jacket 2 uses is TPE.

Seen from the above description, using the protective jacket fatigue resistance with higher of TPE material and good temperature tolerance.

Further, the quantity of the core 1 is multiple groups, further includes the strengthening core 9 being coated in the protective jacket 2, more The group core 1 is arranged around the strengthening core 9.

Seen from the above description, strengthening core has filled up the gap between core, and the stabilization of the construction of cable not only can be improved Property, certain support and buffer function can also be played to core.

A kind of shielded cable component, including above-mentioned shielded cable.

It further, further include connector 10 and line bank 11, one end of the shielded cable and the connector 10 connect It connects, the other end of shielded cable is connect with the line bank 11.

Further, the connector 10 includes connected connector male head and connector female end.

Embodiment one

Referring to Fig.1 and 2, the embodiments of the present invention one are as follows: a kind of shielded cable, including core 1 and protective jacket 2, optionally, the outer diameter value range of the protective jacket 2 is 6.3mm-6.7mm, and the core 1 is coated in the protective jacket 2, It further include set on the shielded layer between the core 1 and the protective jacket 2, the shielded layer is viscous including stacking gradually from outside to inside The first polyester layer 3, the first aluminium foil layer 4, the second polyester layer 5 and the second aluminium foil layer 6 closed, second aluminium foil layer 6 cover In the outside of the first aluminium foil layer 4, it is mainly used for carrying out the interface of the first aluminium foil layer 4 signal shielding, the first aluminium foil layer 4 and the Two aluminium foil layers 6 complement one another, and provide the reliability of shielding.

It is easily understood that shielded layer includes the first polyester layer 3 for stacking gradually bonding from outside to inside, the first aluminium foil layer 4, the second polyester layer 5 and the second aluminium foil layer 6, the two sides of the first aluminium foil layer 4 respectively with the first polyester layer 3 and the second polyester belt Layer 5 bonds, and the first polyester layer 3 and the second polyester layer 5 carry out signal shielding to the conductive layer of 4 two sides of the first aluminium foil layer, prevents Only interference signal passes through shielded layer.

First polyester layer 3 and the second polyester layer 5 are self-adhesion polyester belt, and self-adhesion polyester belt has good viscous Connect performance.

Detailed, the core 1 includes conductor bare copper wire 7 and protective layer 8, and the conductor bare copper wire 7 is coated on the guarantor In sheath 8, the value range of the line footpath of the conductor bare copper wire 7 is 0.7-0.8mm, specifically, the line of the conductor bare copper wire 7 Outer diameter is 0.76mm.

The material that the protective layer 8 uses is PVC, and the Thickness range of protective layer 8 is 0.3-0.4mm, it is preferred that institute State protective layer 8 with a thickness of 0.38mm, the outer diameter of protective layer 8 is 1.58mm.

Optionally, the material that the protective jacket 2 uses for TPE, protective jacket 2 used by the present embodiment not containing silicone resin, CFC and lead, have anti-ultraviolet function, and flame retardant rating is VW-1 grades.

Optionally, the quantity of the core 1 is multiple groups, and in the present embodiment, the quantity of the core 1 is four groups, is also wrapped The strengthening core 9 being coated in the protective jacket 2 is included, core 1 described in four groups is arranged around the strengthening core 9.

Referring to attached drawing 2, a kind of shielded cable component is detailed including above-mentioned shielded cable, further includes 10 He of connector Line bank 11, one end of the shielded cable are connect with the connector 10, the other end of shielded cable and the line bank 11 Connection, it is preferred that the connector is AISG connector.

Optionally, the connector 10 includes connected connector male head and connector female end；In the present embodiment, described AISG connector male head is connected with AISG connector female end.

In conclusion a kind of shielded cable provided by the utility model and its component, the side of the first aluminium foil layer and first Polyester layer bonding, the other side and the second polyester layer bond, and the first polyester layer and the second polyester layer are respectively to the first aluminium The conductive layer of layers of foil two sides carries out signal shielding, can effectively shield interference signal；First polyester layer of laminate adhesive, the simultaneously One aluminium foil layer, the second polyester layer and the second aluminium foil layer stable connection, are also able to maintain original structure in that case of ben, prevent from shielding Cover the shield effectiveness for gap occur between layer and reducing shielded layer.

The above description is only the embodiments of the present invention, and therefore it does not limit the scope of the patent of the utility model, all Equivalents made based on the specification and figures of the utility model are applied directly or indirectly in relevant technology neck Domain is also included in the patent protection scope of the utility model.

Claims (9)

1. a kind of shielded cable, including core and protective jacket, the core are coated in the protective jacket, it is characterised in that: also Including the shielded layer being set between the core and the protective jacket, the shielded layer includes stacking gradually bonding from outside to inside First polyester layer, the first aluminium foil layer, the second polyester layer and the second aluminium foil layer.

2. shielded cable according to claim 1, it is characterised in that: first polyester layer and the second polyester layer are equal For self-adhesion polyester belt.

3. shielded cable according to claim 1, it is characterised in that: the core includes conductor bare copper wire and protective layer, The conductor bare copper wire is coated in the protective layer, and the value range of the line footpath of the conductor bare copper wire is 0.7-0.8mm.

4. shielded cable according to claim 3, it is characterised in that: the material that the protective layer uses is PVC, protective layer Thickness range be 0.3-0.4mm.

5. shielded cable according to claim 1, it is characterised in that: the material that the protective jacket uses is TPE.

6. shielded cable according to claim 1, it is characterised in that: the quantity of the core is multiple groups, further includes cladding Strengthening core in the protective jacket, core described in multiple groups are arranged around the strengthening core.

7. a kind of shielded cable component, it is characterised in that: including shielded cable described in any one of claims 1-6.

8. shielded cable component according to claim 7, it is characterised in that: further include connector and line bank, the screen The one end for covering cable is connect with the connector, and the other end of shielded cable is connect with the line bank.

9. shielded cable component according to claim 8, it is characterised in that: the connector includes that connected connector is public Head and connector female end.