Shielded twisted pair

Abstract

The utility model belongs to the technical field of twisted pairs, in particular to a shielded twisted pair, which comprises an isolating frame and a plurality of cable cores, an outer protective strip is arranged outside the isolating frame, the isolating frame comprises a hollow sleeve arranged at the center of a circle and isolating strips formed outside the hollow sleeve, the isolating strips are circumferentially distributed at equal intervals, and the cable cores are arranged in the hollow sleeve. One cable core is located between the two isolation strips, and the outer side of the isolation frame and the outer protection strip are supported to form buffering for the cable core; the arranged isolation frame can form a partition between the adjacent cable cores, the shielding effect between the adjacent cable cores is improved, the mutual influence is reduced, the isolation frame is matched with the outer protection strip to form a plurality of mutually communicated and supported buffer spaces in the cable, the buffer spaces can buffer the pressure in any radial direction, and then the stable use of the cable is ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of twisted-pair cables, in particular to a shielded twisted-pair cable. Background Art

[0002] Shielded twisted pair is a copper wire widely used for data transmission. Its characteristic is that it can effectively shield external electromagnetic interference and ensure the safety and reliability of data transmission.

[0003] Shielded twisted pair cable is two insulated copper wires twisted together to form a pair, which is further twisted and packaged in an insulating sleeve. In addition, the entire cable is wrapped with a shielding layer, which can further shield the transmission line and prevent interference from external electromagnetic fields;

[0004] The inside of the twisted pair cable has a conductor, an insulating layer, a shielding layer, an outer sheath, etc., but the cable does not have a buffer structure. Such twisted pair cables generally need to be arranged irregularly, especially in some positive corners. Due to the lack of a buffer structure, the cable may be bent instead of bent if not paid attention to, which will cause greater damage to the cable and increase the probability of damage to the internal cable core. The compression resistance is also poor. After being compressed, the outer sheath is prone to breakage and the internal cable core is prone to breakage, which is not conducive to the stable use of the shielded twisted pair cable. All the twisted pairs in the existing cable are distributed in one cavity, and interference will also occur between the cables, affecting the shielding effect.

[0005] In order to solve the above problems, a shielded twisted pair cable is proposed in the present application. Utility Model Content

[0006] The purpose of the utility model is to provide a shielded twisted pair cable, which solves the problems raised in the above background technology.

[0007] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0008] The utility model discloses a shielded twisted pair cable, comprising an isolation frame and a plurality of cable cores, wherein an outer protective strip is arranged outside the isolation frame, the isolation frame comprises a hollow sleeve arranged at the center of a circle and an isolation strip formed outside the hollow sleeve, the isolation strips are equidistantly distributed around the circumference, one cable core is located between two isolation strips, and the outer side of the isolation frame is supported by the outer protective strip and forms a buffer for the cable core.

[0009] Furthermore, the isolation frame also includes a buffer frame formed on the outside of the hollow sleeve, a buffer groove with one end communicating with the inside of the hollow sleeve is opened on the inner side of the isolation strip, and a support strip is supported inside the hollow sleeve.

[0010] Furthermore, the outer protective strip includes an outer wrapping strip on the outside and a buffer strip on the inside.

[0011] Furthermore, a "V"-shaped groove is formed on the inner side of the buffer frame, the buffer strip is arranged in a "V" shape, the buffer frame is partially in contact with the buffer strip, and a buffer hole is formed between the outer strip and the buffer strip for the buffer frame and the buffer strip to be squeezed to form a buffer.

[0012] Furthermore, the support bars are cross-arranged and form a cavity inside the hollow sleeve that communicates with the buffer groove.

[0013] Furthermore, the outer protective strips are multiple strips distributed around the circumference and the outer part forms a complete ring shape after being closed.

[0014] Furthermore, a filling layer is arranged between two adjacent isolation strips and outside the cable core, the filling layer is located on the inner side of the outer protective strip, an insulating layer is molded outside the outer protective strip, a metal shielding layer is arranged outside the insulating layer, and an outer sheath is arranged outside the metal shielding layer.

[0015] The utility model has the following beneficial effects:

[0016] The utility model separates multiple cable cores by setting an isolation frame, so that the protection effect of the independent cavity will be better, the impact between the multiple cable cores will be smaller, and a certain shielding effect will be formed between adjacent cable cores, thereby ensuring the stable use of the cable core inside the cable;

[0017] The utility model arranges an isolation frame and an outer protective strip outside the cable core. The outer protective strip forms a buffer cavity between multiple cable cores, which can effectively buffer the radial pressure of the cable, avoid mutual compression between multiple cable cores, and avoid easy deformation leading to cracking of the outer sheath.

[0018] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 This is a schematic diagram of the overall appearance structure of the utility model;

[0021] Figure 2 It is a structural schematic diagram of the cross section of the cable of the utility model;

[0022] Figure 3 It is a structural schematic diagram of a partial enlargement of the isolation frame in the utility model;

[0023] Figure 4 It is a partially enlarged structural diagram of the inner and outer sheaths of the utility model;

[0024] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0025] In the figure: 1. isolation frame; 11. hollow sleeve; 12. isolation strip; 13. buffer frame; 14. buffer groove; 15. support strip; 2. cable core; 3. outer protective strip; 31. outer covering strip; 32. buffer strip; 33. buffer hole; 4. filling layer; 5. insulation layer; 6. metal shielding layer; 7. outer sheath. DETAILED DESCRIPTION

[0026] 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.

[0027] In the description of the present invention, it should be understood that terms such as "opening", "upper", "lower", "thickness", "top", "middle", "length", "inside", "all around" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0028] See also Figure 1-4 As shown, the utility model is a shielded twisted pair cable, including an isolation frame 1 and multiple cable cores 2, an outer protective strip 3 is provided outside the isolation frame 1, the isolation frame 1 includes a hollow sleeve 11 arranged at the center of a circle and an isolation strip 12 formed outside the hollow sleeve 11, the isolation strips 12 are equidistantly distributed around the circumference, a cable core 2 is located between two isolation strips 12, and the outer side of the isolation frame 1 is supported by the outer protective strip 3 and forms a buffer for the cable core 2.

[0029] Among them, the isolation frame 1 also includes a buffer frame 13 formed on the outside of the hollow sleeve 11, a buffer groove 14 is opened on the inner side of the isolation strip 12, and one end is interconnected with the inside of the hollow sleeve 11. The hollow sleeve 11 is supported by a support strip 15, and the outer protective strip 3 includes an outer outer wrapping strip 31 and an inner buffer strip 32.

[0030] Among them, a "V"-shaped groove is formed on the inner side of the buffer frame 13, the buffer strip 32 is set in a "V" shape, the buffer frame 13 is partially in contact with the buffer strip 32, and a buffer hole 33 is formed between the outer strip 31 and the buffer strip 32 for squeezing the buffer frame 13 and the buffer strip 32 to form a buffer. In this embodiment, the "V"-shaped structural cooperation can not only support each other to ensure structural reliability, but also play a buffering role after being compressed, thereby better protecting the cables.

[0031] The support bars 15 are cross-arranged and form a cavity in the hollow sleeve 11 that communicates with the buffer groove 14 . In this embodiment, the support bars 15 mainly support the hollow sleeve 11 and improve the buffer effect.

[0032] Among them, the outer protective strips 3 are multiple strips distributed around the circumference and the outer part forms a complete ring after closing. The closed loop formed in this embodiment is convenient for the molding of the insulating layer 5, and at the same time, the filling part of the filling layer 4 can form a closed space, which is convenient for the processing and molding of the cable.

[0033] Among them, a filling layer 4 is arranged between two adjacent isolation strips 12 and outside the cable core 2, the filling layer 4 is located on the inner side of the outer protective strip 3, an insulating layer 5 is molded outside the outer protective strip 3, a metal shielding layer 6 is arranged outside the insulating layer 5, and an outer sheath 7 is arranged outside the metal shielding layer 6.

[0034] It can be understood that the isolation frame 1 can form a partition between adjacent cable cores 2, improve the shielding effect between adjacent cable cores 2, reduce the mutual influence, and cooperate with the outer protective strip 3 to form a plurality of interconnected and supported buffer spaces inside the cable. The buffer space can buffer the pressure in any radial direction, thereby ensuring the stable use of the cable.

[0035] A specific application of this embodiment is: the isolation frame 1 is formed by extrusion, and the shapes of the hollow sleeve 11, isolation strip 12, buffer frame 13, buffer groove 14, and support strip 15 in the isolation frame 1 are formed in one piece by extrusion, the extruded two ends of the isolation frame 1 are interconnected, the wound cable core 2 is placed between two adjacent isolation strips 12, a filling layer 4 is added between the isolation frame 1 and the cable core 2, and then the outer protective strip 3 is wrapped around the outside of the filling layer 4, the outside of the filling layer 4 is coated to form an insulating layer 5, the insulating layer 5 fixes the internal components of the cable, and then a metal shielding layer 6 is arranged outside the insulating layer 5, and finally the outer sheath 7 is coated on the outside of the metal shielding layer 6.

[0036] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0037] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A shielded twisted pair cable, comprising an isolation frame (1) and a plurality of cable cores (2), characterized in that: An outer protective strip (3) is provided on the outside of the isolation frame (1). The isolation frame (1) comprises a hollow sleeve (11) arranged at the center of a circle and an isolation strip (12) formed on the outside of the hollow sleeve (11). The isolation strips (12) are distributed equidistantly around the circumference. One cable core (2) is located between two isolation strips (12). The outer side of the isolation frame (1) supports the outer protective strip (3) and forms a buffer for the cable core (2).

2. A shielded twisted pair cable according to claim 1, characterized in that: The isolation frame (1) further comprises a buffer frame (13) formed on the outside of the hollow sleeve (11); a buffer groove (14) having one end communicating with the inside of the hollow sleeve (11) is provided on the inside of the isolation strip (12); and a support strip (15) is supported inside the hollow sleeve (11).

3. A shielded twisted pair cable according to claim 2, characterized in that: The outer protective strip (3) comprises an outer wrapping strip (31) on the outside and a buffer strip (32) on the inside.

4. A shielded twisted pair cable according to claim 3, characterized in that: A "V"-shaped groove is formed inside the buffer frame (13), the buffer strip (32) is arranged in a "V" shape, the buffer frame (13) is partially in contact with the buffer strip (32), and a buffer hole (33) is formed between the outer strip (31) and the buffer strip (32) for squeezing the buffer frame (13) and the buffer strip (32) to form a buffer.

5. A shielded twisted pair cable according to claim 4, characterized in that: The support bars (15) are cross-arranged and form a cavity inside the hollow sleeve (11) that communicates with the buffer groove (14).

6. A shielded twisted pair cable according to claim 3, characterized in that: The outer protective strips (3) are multiple strips distributed around the circumference and the outer part forms a complete ring shape after being closed.

7. A shielded twisted pair cable according to claim 1, characterized in that: A filling layer (4) is provided between two adjacent isolation strips (12) and outside the cable core (2); the filling layer (4) is located inside the outer protective strip (3); an insulating layer (5) is formed outside the outer protective strip (3); a metal shielding layer (6) is provided outside the insulating layer (5); and an outer sheath (7) is provided outside the metal shielding layer (6).

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