CN218274064U

CN218274064U - Impedance low-attenuation weak radio frequency cable

Info

Publication number: CN218274064U
Application number: CN202222364219.2U
Authority: CN
Inventors: 章浪; 范强; 兰刘雄
Original assignee: Shenzhen Tianmai Communication Technology Co ltd
Current assignee: Shenzhen Tianmai Communication Technology Co ltd
Priority date: 2022-09-06
Filing date: 2022-09-06
Publication date: 2023-01-10
Anticipated expiration: 2032-09-06

Abstract

The utility model discloses a low weak radio frequency cable of decay of impedance, concretely relates to radio frequency cable technical field, including the cable conductor, the cable conductor outside is provided with winding conductor silk, the winding conductor silk outside is provided with insulating cover, the insulating cover outside sets up impedance mechanism, impedance mechanism includes that the compound area of membrane is moulded to the metal, the compound area outside of membrane is moulded to the metal is provided with fire-retardant packing layer, fire-retardant packing layer outside cover is equipped with the shielding layer, the shielding layer outside is provided with weaves the shielding layer. The utility model discloses a set up impedance mechanism, make the cable can be high temperature resistant to the high temperature that produces through the cable improves transmission current-carrying capacity, further improves transmission effect, further strengthens the interference to external miscellaneous wave through metal plastic film composite band, shielding layer and braided shielding layer, improves cable interference killing feature, improves data transmission stability.

Description

Impedance low-attenuation weak radio frequency cable

Technical Field

The utility model relates to a radio frequency cable technical field, more specifically say, the utility model relates to a low weak radio frequency cable of decay of impedance.

Background

The electric wire and cable is also called a cable, and is mainly used for transmitting electricity, magnetic energy and information. The radio frequency cable is an indispensable element in various radio communication systems and electronic equipment, and is widely applied to the aspects of wireless communication and broadcasting, televisions, radars, navigation, computers, instruments and the like.

The radio frequency cable with the patent application number of CN201920545340.0 is convenient for fixing a wire body in an angle bending mode, improves the installation and placement stability of the wire body, improves the detachability, reduces the damage to the wire body, and improves the use reliability, and comprises the wire body; the right end of each group of right arc-shaped clamping plates is respectively connected with the left end of each group of adjusting boxes, and the rear ends of each group of right arc-shaped clamping plates and each group of left arc-shaped clamping plates can be rotatably connected, so that the detachability is improved, meanwhile, the friction force between the left arc-shaped clamping plates and the line body during installation is improved through a rubber pad, the protection capability of the line body is improved, the damage to the line body is reduced, and the use reliability is improved; however, in the practical use process, the cable is not well shielded, and is easily interfered by external noise, so that the signal transmission effect is influenced, and meanwhile, noise waves can be leaked in the cable transmission process to influence other equipment in the outside.

SUMMERY OF THE UTILITY MODEL

The utility model discloses technical scheme is too single technical problem to prior art solution, provides showing the solution that is different from prior art. In order to overcome the problem defect among the prior art, the utility model provides a weak radio frequency cable of impedance low attenuation to solve and provide in the above-mentioned background art nevertheless in the in-service use in-process, the cable does not carry out enough good shielding treatment, receives external noise's interference easily, influences the signal transmission effect, and the problem of clutter to other equipment of external influence also can be revealed in cable transmission simultaneously.

In order to achieve the above purpose, the utility model provides a following technical scheme: the low-attenuation low-impedance radio-frequency cable comprises a cable conductor, wherein a wound conductor wire is arranged on the outer side of the cable conductor, an insulating sleeve is arranged on the outer side of the wound conductor wire, and an impedance mechanism is arranged on the outer side of the insulating sleeve;

the impedance mechanism comprises a metal-plastic film composite belt, a flame-retardant packing layer is arranged on the outer side of the metal-plastic film composite belt, a shielding layer is sleeved on the outer side of the flame-retardant packing layer, a braided shielding layer is arranged on the outer side of the shielding layer, and an outer sheath is sleeved on the outer side of the braided shielding layer.

Preferably, the number of the winding conductor wires is set to be a plurality, the winding conductor wires are wound on the outer side of the cable conductor, the outer surfaces of the winding conductor wires are attached to each other, and the cable conductor and the winding conductor wires are both made of silver-plated copper wire materials.

Preferably, the metal plastic film composite tape is wound outside the insulating sleeve, and the wound conductor wire is arranged between the cable conductor and the insulating sleeve along the length direction of the cable conductor.

Preferably, the flame-retardant filler layer is made of a flame-retardant fiber material, and the shielding layer sequentially comprises a reflecting layer, an absorbing layer and a resistance layer from inside to outside.

Preferably, the reflecting layer, the absorbing layer and the impedance layer have the same thickness, and the impedance layer is made of soft aluminum foil and polyester film.

Preferably, the braided shielding layer is a mesh-shaped metal shielding layer woven by tinned copper wires, and the outer sheath is made of polytetrafluoroethylene material.

Preferably, a first connecting plate is arranged inside the outer sheath, a second connecting plate is arranged inside the flame-retardant packing layer, a supporting and fixing plate is arranged between the first connecting plate and the second connecting plate, and the top of the supporting and fixing plate sequentially penetrates through the flame-retardant packing layer, the shielding layer, the braided shielding layer and the outer sheath and extends into the outer sheath.

The utility model discloses a technological effect and advantage:

1. by arranging the impedance mechanism, the high-temperature resistant effect of the whole cable can be effectively improved through the flame-retardant packing layer, and meanwhile, as the working temperature of the cable is higher, the current-carrying capacity of the cable with the same cross section is higher, the high temperature of the conductor part can improve the current-carrying capacity of the cable, so that the cable can resist high temperature, the transmission current-carrying capacity is improved through the high temperature generated by the cable, the transmission effect is further improved, the interference on external noise is further enhanced through the metal-plastic film composite belt, the shielding layer and the woven shielding layer, the anti-interference capacity of the cable is improved, and the data transmission stability is improved;

2. through setting up first connecting plate, second connecting plate and supporting and fixing plate, through setting up first connecting plate in the oversheath inside in the outside, set up the second connecting plate in fire-retardant packing layer inside, establish ties fire-retardant packing layer, shielding layer, woven shield layer and oversheath through supporting and fixing plate, improved each level's inseparable degree, improve the stability and the firm degree of whole cable.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic diagram of the internal structure of the shielding layer of the present invention.

Fig. 3 is a schematic view of the specific structure of the first connecting plate, the second connecting plate and the supporting and fixing plate of the present invention.

Fig. 4 is a schematic structural view of the joint of the cable conductor and the metal plastic film composite tape of the present invention.

The reference signs are: 1. a cable conductor; 2. winding a conductor wire; 3. an insulating sleeve; 4. a metal plastic film composite tape; 5. a flame-retardant filler layer; 6. a shielding layer; 7. weaving a shielding layer; 8. an outer sheath; 9. a first connecting plate; 10. a second connecting plate; 11. a support fixing plate; 12. a reflective layer; 13. an absorption layer; 14. a resistive layer.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The low-impedance low-attenuation weak radio frequency cable shown in the attached figures 1-4 comprises a cable conductor 1, wherein a wound conductor wire 2 is arranged on the outer side of the cable conductor 1, an insulating sleeve 3 is arranged on the outer side of the wound conductor wire 2, and an impedance mechanism is arranged on the outer side of the insulating sleeve 3;

the impedance mechanism comprises a metal plastic film composite belt 4, a flame-retardant packing layer 5 is arranged on the outer side of the metal plastic film composite belt 4, a shielding layer 6 is sleeved on the outer side of the flame-retardant packing layer 5, a braided shielding layer 7 is arranged on the outer side of the shielding layer 6, and an outer sheath 8 is sleeved on the outer side of the braided shielding layer 7.

As shown in the attached figures 1 and 4, the quantity of the winding conductor wires 2 is set to be a plurality of, the winding conductor wires 2 are wound outside the cable conductor 1, the outer surfaces of the winding conductor wires 2 are attached to each other, the cable conductor 1 and the winding conductor wires 2 are made of silver-plated copper wire materials, the metal plastic film composite belt 4 is wound outside the insulating sleeve 3, the winding conductor wires 2 are arranged between the cable conductor 1 and the insulating sleeve 3 along the length direction of the cable conductor 1, and the model transmission effect is improved.

As shown in the attached

drawings

1 and 2, the flame-retardant filler layer 5 is made of a flame-retardant fiber material, the shielding layer 6 sequentially comprises a reflecting layer 12, an absorbing layer 13 and an impedance layer 14 from inside to outside, the thicknesses of the reflecting layer 12, the absorbing layer 13 and the impedance layer 14 are the same, the impedance layer 14 is made of a soft aluminum foil and a polyester film, the braided shielding layer 7 is a net-shaped metal shielding layer woven by tinned copper wires, and the outer sheath 8 is made of a polytetrafluoroethylene material, so that the anti-interference capability of the whole cable is improved.

As shown in the attached

drawings

1 and 3, a first connecting plate 9 is arranged inside the outer sheath 8, a second connecting plate 10 is arranged inside the flame-retardant packing layer 5, a supporting and fixing plate 11 is arranged between the first connecting plate 9 and the second connecting plate 10, the top of the supporting and fixing plate 11 sequentially penetrates through the flame-retardant packing layer 5, the shielding layer 6, the braided shielding layer 7 and the outer sheath 8 and extends to the inside of the outer sheath 8, and firmness among all layers of the cable is improved.

The utility model discloses the theory of operation: the utility model discloses when using, through cable conductor 1 and winding conductor silk 2 in the 1 outside of cable conductor, stability when improving cable data transmission, improve transmission effect through winding conductor silk 2, avoid taking place to damage in the middle of the cable conductor 1 and influence the transmission, insulate cable conductor 1 and winding conductor silk 2 through insulating cover 3, through the compound loss that takes 4 can effectual reduction signal transmission in-process of metal plastic film, reduce the decay, improve the high temperature resistance ability of cable through fire-retardant packing layer 5, through by reflection stratum 12, absorbed layer 13 and impedance layer 14 constitute shielding layer 6 and carry out interference shielding to external clutter, weave shielding layer 7 by tinned wire and further shield external clutter.

The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;

secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the present invention, only the structures related to the disclosed embodiments are referred to, and other structures can refer to the common design, and under the condition of no conflict, the same embodiment and different embodiments of the present invention can be combined with each other;

and finally: the above description is only for the preferred embodiment of the present invention and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An impedance low attenuation weak radio frequency cable comprising a cable conductor (1), characterized in that: a wound conductor wire (2) is arranged on the outer side of the cable conductor (1), an insulating sleeve (3) is arranged on the outer side of the wound conductor wire (2), and an impedance mechanism is arranged on the outer side of the insulating sleeve (3);

the impedance mechanism comprises a metal-plastic film composite belt (4), a flame-retardant packing layer (5) is arranged on the outer side of the metal-plastic film composite belt (4), a shielding layer (6) is sleeved on the outer side of the flame-retardant packing layer (5), a braided shielding layer (7) is arranged on the outer side of the shielding layer (6), and an outer sheath (8) is sleeved on the outer side of the braided shielding layer (7).

2. The low-impedance low-attenuation weak radio frequency cable according to claim 1, wherein: the number of winding conductor silk (2) sets up to a plurality ofly, and is a plurality of winding conductor silk (2) twine in cable conductor (1) outside, and is a plurality of the surface of winding conductor silk (2) between two liang is laminated mutually, cable conductor (1) and winding conductor silk (2) all are made with silver-plated copper wire material.

3. The low-impedance low-attenuation weak radio frequency cable according to claim 1, wherein: the metal plastic film composite belt (4) is wound on the outer side of the insulating sleeve (3), and the wound conductor wire (2) is arranged between the cable conductor (1) and the insulating sleeve (3) along the length direction of the cable conductor (1).

4. The low-impedance low-attenuation weak radio frequency cable according to claim 1, wherein: the flame-retardant filler layer (5) is made of flame-retardant fiber materials, and the shielding layer (6) sequentially comprises a reflecting layer (12), an absorbing layer (13) and an impedance layer (14) from inside to outside.

5. The low-impedance low-attenuation weak radio-frequency cable according to claim 4, wherein: the thickness of the reflecting layer (12), the thickness of the absorbing layer (13) and the thickness of the resistance layer (14) are the same, and the resistance layer (14) is made of soft aluminum foil and polyester film.

6. The low-impedance low-attenuation weak radio frequency cable according to claim 1, wherein: the braided shielding layer (7) is a net-shaped metal shielding layer woven by tinned copper wires, and the outer sheath (8) is made of polytetrafluoroethylene materials.

7. The low-impedance low-attenuation weak radio-frequency cable as claimed in claim 1, wherein: the novel anti-flaming fabric is characterized in that a first connecting plate (9) is arranged inside the outer sheath (8), a second connecting plate (10) is arranged inside the anti-flaming packing layer (5), a supporting and fixing plate (11) is arranged between the first connecting plate (9) and the second connecting plate (10), and the top of the supporting and fixing plate (11) penetrates through the anti-flaming packing layer (5), the shielding layer (6), the woven shielding layer (7) and the outer sheath (8) in sequence and extends to the inside of the outer sheath (8).