Digital signal connection cable

Abstract

The utility model discloses a digital signal connecting cable which comprises an outer sheath and a plurality of twisted-pair transmission lines arranged in the outer sheath in a penetrating mode, a retainer used for separating the twisted-pair transmission lines is arranged in the outer sheath in a penetrating mode, each twisted-pair transmission line comprises two spirally-wound wires and a separation piece distributed between the two wires, and the separation pieces are arranged in the outer sheath in a penetrating mode. A casting ladle body is arranged between the two wires and the isolation piece and used for enabling the two wires and the isolation piece to be distributed in a spiral mode, the holder is provided with second grooves, the number of the second grooves is equal to that of the twisted-pair transmission lines, and the twisted-pair transmission lines are embedded in the second grooves respectively. According to the utility model, each lead is separated, and the plurality of leads are distributed in a spiral shape, so that the cable has good tensile property and durability.

Description

Technical Field

[0001] The utility model relates to the technical field of signal cables, in particular to a digital signal connection cable. Background Art

[0002] Digital signal cables are used to transmit digital signals, primarily connecting various devices to enable digital signal transmission. These signals can be audio, video, data, and more. They offer fast transmission speeds, wide bandwidth, and strong anti-interference capabilities. Digital signal cables ensure signal accuracy and stability during transmission, thereby improving the quality and efficiency of communication between devices.

[0003] At present, the digital cables on the market mainly include coaxial cables, twisted pair cables, fiber optic cables and other types. Among them, twisted pair cables are made of two or more mutually insulated copper wires twisted together, and usually multiple pairs of twisted pair cables are wrapped in an insulating sleeve. Due to its low price, easy installation and maintenance, it is suitable for short-distance transmission and is widely used in local area network (LAN) wiring, telephone lines, etc. However, in the actual application of twisted pair signal connection cables, it is found that in the existing twisted pair signal cables, the two twisted wires are separated only by the insulation layer wrapped by the wires themselves. When the insulation layer wrapped by the wires themselves is damaged, the insulation barrier between the two wires will continue to thin, resulting in mutual interference between the two wires, affecting the normal transmission of the signal, and a high failure rate. For this reason, the present application proposes a digital signal connection cable to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide a digital signal connection cable, which has good tensile strength and durability by separating each wire and distributing multiple wires in a spiral shape.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A digital signal connection cable comprises an outer sheath and a plurality of twisted pair transmission lines inserted into the outer sheath. A retaining frame for separating the plurality of twisted pair transmission lines is inserted into the outer sheath. The twisted pair transmission lines comprise two spirally wound conductors and a spacer distributed between the two conductors. A ladle is provided between the two conductors and the spacer to maintain the spiral distribution of the two conductors and the spacer.

[0007] Preferably, the retaining frame is provided with second grooves whose number is equal to the number of the twisted pair transmission lines, and the plurality of twisted pair transmission lines are respectively embedded in the plurality of second grooves.

[0008] Preferably, the plurality of second grooves are distributed in a spiral shape along the surface of the retaining frame.

[0009] Preferably, two first grooves are formed in the ladle body, and the two first grooves are symmetrically distributed with the separator as the center. The two wires are respectively embedded in the two first grooves.

[0010] Preferably, the wire is composed of a wire core, an inner sheath wrapped around the wire core, and an inner shielding layer wrapped around the inner sheath.

[0011] Preferably, an outer shielding layer is further provided in the outer sheath. The twisted pair transmission line and the cage are located in the outer shielding layer, and the voids of the outer shielding layer, the cage, and the twisted pair transmission line are filled with a filling body.

[0012] Preferably, a secondary tensile rope is arranged along the length direction in the cage, and a main tensile rope is further arranged in the voids of the outer shielding layer, the cage, and the twisted pair transmission line. The main tensile rope is spirally wound around the cage following the twisted pair transmission line.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] The present utility model can shield the electromagnetic interference from the outside to the wire through the outer shielding layer, and the inner shielding layer wrapped outside the wire core in the wire can shield the mutual interference between multiple wires, ensuring the stability of the digital signal transmission of the cable.

[0015] In the present utility model, by arranging a separator between the two wires in each twisted pair transmission line, the two wires can be separated, avoiding the influence on the normal signal transmission of the two wires forming the twisted pair transmission line after one wire is damaged, and improving the durability of the cable. In addition, the ladle body jointly arranged on the two wires and the separator can keep the separator always play a separating role between the two wires. By arranging the two wires forming the twisted pair transmission line in a spiral shape, and adding that multiple twisted pair transmission lines are spirally distributed along the second grooves on the cage, cooperating with the secondary tensile rope arranged in the cage and the main tensile rope arranged in the outer sheath, the integrity and tensile performance of the cable are improved, and the durability of the cable is further improved.

[0016] Of course, it is not necessary for any product implementing the present utility model to achieve all the above advantages simultaneously. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the overall end face structure of the digital signal connection cable of the present utility model;

[0018] Figure 2 is a schematic diagram of the end face structure of the twisted pair transmission line of the present utility model;

[0019] Figure 3 is a schematic diagram of the disassembled end face structure of the twisted pair transmission line of the present utility model;

[0020] Figure 4 This is a schematic diagram of the end face structure of the retainer of the utility model.

[0021] In the figure: 1. Outer sheath; 2. Outer shielding layer; 3. Twisted-pair transmission line; 4. Cage; 5. Main tensile rope; 6. Filling body; 7. Secondary tensile rope; 8. Conductor; 9. Isolation sheet; 10. Ladle body; 11. Wire core; 12. Inner sheath; 13. Inner shielding layer; 14. First groove; 15. Second groove. DETAILED DESCRIPTION

[0022] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are intended only to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed and operate in a specific direction, and therefore should not be understood as limiting the present invention. The following describes various embodiments of the present invention in detail with reference to the accompanying drawings.

[0023] Example

[0024] See also Figures 1 to 4 The present invention preferably provides a technical solution: a digital signal connection cable, comprising an outer sheath 1 and a plurality of twisted pair transmission lines 3 inserted into the outer sheath 1, wherein a retaining frame 4 for separating the plurality of twisted pair transmission lines 3 is inserted into the outer sheath 1 to avoid mutual interference between the plurality of twisted pair transmission lines 3. The twisted pair transmission lines 3 include two spirally wound conductors 8 and an isolation sheet 9 distributed between the two conductors 8, and a ladle body 10 is provided between the two conductors 8 and the isolation sheet 9 to keep the two conductors 8 and the isolation sheet 9 in a spiral distribution. Specifically, two first grooves 14 are provided on the ladle body 10, and the two first grooves 14 are symmetrically distributed with the isolation sheet 9 as the center, and the two conductors 8 are respectively embedded in the two first grooves 14. A spacer 9 is provided between the two conductors 8 in each twisted pair transmission line 3 to separate the two conductors 8. This prevents damage to one conductor 8 from affecting the normal signal transmission of the two conductors 8 that make up the twisted pair transmission line 3, thereby improving the durability of the cable. The spiral arrangement of the two conductors 8, coupled with the ladle body 10, maintains the position of the two conductors 8 and the spacer 9, improving the integrity and tensile strength of the cable, making it more durable. The outer sheath 1 is made of polypropylene, the ladle body 10 is made of rubber (such as nitrile rubber, chloroprene rubber, styrene-butadiene rubber, ethylene-propylene rubber, etc.), and the spacer 9 is made of one of fluoroplastic, nylon, or insulating paper.

[0025] Further, the cage 4 is provided with second grooves 15 equal in number to the twisted pair transmission lines 3. The multiple twisted pair transmission lines 3 are respectively embedded in the multiple second grooves 15, and the multiple second grooves 15 are spirally distributed along the surface of the cage 4. The spiral distribution improves the overall performance of the cable, prevents scattering, and at the same time has a certain tensile property.

[0026] In a further embodiment, the wire 8 is composed of a wire core 11, an inner sheath 12 wrapped around the wire core 11, and an inner shielding layer 13 wrapped around the inner sheath 12. The wire core 11 is made of copper. The material of the inner sheath 12 is one of polyvinyl chloride, polyethylene, and cross-linked polyethylene. An outer shielding layer 2 is further provided in the outer sheath 1. The twisted pair transmission lines 3 and the cage 4 are located within the outer shielding layer 2. The pores of the outer shielding layer 2, the cage 4, and the twisted pair transmission lines 3 are filled with a filling body 6. The outer shielding layer 2 can shield the electromagnetic interference from the outside to the wire 8. The inner shielding layer 13 wrapped around the outside of the wire core 11 in the wire 8 can shield the mutual interference between the multiple wires 8, ensuring the stability of the digital signal transmission of the cable. The pores of the outer shielding layer 2, the cage 4, and the twisted pair transmission lines 3 being filled with the filling body 6 can prevent the twisted pair transmission lines 3 from becoming loose. The filling body 6 can be selected from but not limited to rubber materials. The materials of the inner shielding layer 13 and the outer shielding layer 2 are selected from copper wire braiding, aluminum wire (braiding, copper tape, and aluminum foil).

[0027] In a further embodiment, a secondary tensile rope 7 is transmitted along the length direction inside the cage 4, and a primary tensile rope 5 is also threaded through the pores of the outer shielding layer 2, the cage 4, and the twisted pair transmission lines 3. The primary tensile rope 5 is spirally wound around the cage 4 following the twisted pair transmission lines 3. The primary tensile rope 5 and the secondary tensile rope 7 can be selected from but not limited to nylon ropes, which are used to further improve the tensile property of the cable.

[0028] In use, multiple twisted pairs of transmission lines 3 composed of two wires 8 are jointly used for the transmission of digital signals. Among them, the outer shielding layer 2 can shield the electromagnetic interference from the outside to the wires 8, and the inner shielding layer 13 wrapped outside the wire cores 11 in the wires 8 can shield the mutual interference between the multiple wires 8, thus ensuring the stability of the digital signal transmission of the cable. Further, a spacer 9 is provided between the two wires 8 in each twisted pair of transmission lines 3, which can separate the two wires 8, preventing the normal signal transmission of the two wires 8 that make up the twisted pair of transmission lines 3 from being affected after one of the wires 8 is damaged, and improving the durability of the cable. In addition, the potting body 10 provided on the two wires 8 and the spacer 9 together can keep the spacer 9 always separating between the two wires 8. Further, the two wires 8 that make up the twisted pair of transmission lines 3 are spirally distributed, and the multiple twisted pairs of transmission lines 3 are spirally distributed along the second groove 15 on the cage 4, cooperating with the auxiliary tensile ropes 7 passing through the cage 4 and the main tensile ropes 5 passing through the outer sheath 1, improving the integrity and tensile performance of the cable, and further improving the durability of the cable.

[0029] In the present utility model, unless otherwise clearly defined and limited, terms such as "installation", "connection", "connection", "fixation" and other terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components. Among them, there are various ways of detachable installation. For example, it can be in a way of cooperation between plugging and buckling, or in a way of bolt connection, etc.

[0030] The above combines the embodiments and the drawings to clearly and completely describe the concept, specific structure and technical effects of the present utility model, so as to fully understand the purpose, features and effects of the present utility model. Obviously, the described embodiments are only part of the embodiments of the present utility model, not all embodiments. Based on the embodiments of the present utility model, other embodiments obtained by those skilled in the art without creative efforts all fall within the protection scope of the present utility model. In addition, all the connection / connection relationships mentioned in the text do not refer only to the direct connection of components, but refer to the more optimal connection structure that can be formed by adding or reducing connection accessories according to the specific implementation situation.

[0031] The above specific description of the present utility model is only for further explanation of the present utility model and cannot be understood as a limitation on the protection scope of the present utility model. Any non-essential improvements and adjustments made by those skilled in the art based on the content of the above utility model fall within the protection scope of the present utility model.

Claims

1. A digital signal connection cable, comprising an outer sheath (1) and a plurality of twisted pair transmission lines (3) disposed within the outer sheath (1), characterized in that: A cage (4) for separating the plurality of twisted pair transmission lines (3) is disposed within the outer sheath (1). The twisted pair transmission line (3) includes two helically wound conductors (8) and a spacer (9) disposed between the two conductors (8). A potting body (10) is disposed between the two conductors (8) and the spacer (9) for maintaining the two conductors (8) and the spacer (9) in a helical distribution.

2. The digital signal connection cable according to claim 1, wherein: A plurality of second grooves (15) equal in number to the twisted pair transmission lines (3) are formed in the cage (4), and the plurality of twisted pair transmission lines (3) are respectively fitted into the plurality of second grooves (15).

3. The digital signal connection cable according to claim 2, wherein: The plurality of second grooves (15) are spirally distributed along the surface of the cage (4).

4. A digital signal connection cable according to claim 1, characterized in that: Two first grooves (14) are formed in the potting body (10), and the two first grooves (14) are symmetrically distributed with the spacer (9) as the center. The two conductors (8) are respectively fitted into the two first grooves (14).

5. A digital signal connection cable according to claim 1, characterized in that: The conductor (8) is composed of a core (11), an inner sheath (12) wrapped around the core (11), and an inner shielding layer (13) wrapped around the inner sheath (12).

6. A digital signal connection cable according to claim 1, characterized in that: An outer shielding layer (2) is further disposed within the outer sheath (1). The twisted pair transmission lines (3) and the cage (4) are located within the outer shielding layer (2), and the voids between the outer shielding layer (2), the cage (4), and the twisted pair transmission lines (3) are filled with a filling body (6).

7. A digital signal connection cable according to claim 6, characterized in that: A secondary tensile cord (7) is longitudinally transmitted within the cage (4), and a primary tensile cord (5) is further disposed within the voids between the outer shielding layer (2), the cage (4), and the twisted pair transmission lines (3). The primary tensile cord (5) is helically wound around the cage (4) following the twisted pair transmission lines (3).

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