High-temperature-resistant and bending-resistant radio-frequency stable-phase cable

Abstract

The utility model provides a high temperature resistant bending resistant radio frequency phase-stable cable, which comprises an inner conductor, a high temperature resistant insulating layer, an inner shielding layer, an outer shielding layer, an aramid fiber reinforcing layer and a bending resistant sheath, the outer surface of the inner conductor is wrapped with a silver coating, the high temperature resistant insulating layer is wrapped outside the silver coating, the inner shielding layer is wrapped outside the high temperature resistant insulating layer, and the outer shielding layer is wrapped outside the aramid fiber reinforcing layer. The design solves the problems of insufficient high-temperature resistance, poor bending resistance and limited shielding effect of the radio frequency phase-stable cable in the prior art, the high-temperature-resistant insulating layer is made of polyimide, and the bending-resistant sheath is made of thermoplastic elastomer, so that the stability of the cable in a high-temperature environment can be ensured, and the service life of the radio frequency phase-stable cable is prolonged. The bending-resistant sheath made of the aramid fiber reinforcing layer and the thermoplastic elastomer material can significantly improve the bending-resistant performance of the cable and prolong the service life, and the double-layer shielding structure of the inner shielding layer and the outer shielding layer can provide a comprehensive electromagnetic shielding effect and ensure the stability of signal transmission.

Description

Technical Field

[0001] This utility model is a high-temperature and bend-resistant radio frequency phase-stabilized cable, belonging to the field of cable technology. Background Technology

[0002] Radio frequency (RF) phase-stable cables are widely used in communications, radar, aerospace, and other fields. Their main function is to stably transmit RF signals at high frequencies while maintaining phase consistency. In current technology, RF phase-stable cables typically employ the following structure: Inner conductor: made of copper or copper alloy, used for transmitting high-frequency signals. Insulation layer: made of polytetrafluoroethylene (PTFE) or polyethylene (PE), used to isolate the inner and outer conductors. Outer conductor: made of copper braid or aluminum foil, used to shield against external interference. Sheath: made of PVC or polyurethane, used to protect the internal structure of the cable.

[0003] However, the insulation and sheath materials of existing cables are prone to aging in high-temperature environments, leading to a decline in cable performance. At the same time, they are prone to breakage or signal attenuation in frequent bending environments, affecting their service life. Furthermore, the shielding effect of the outer conductor is insufficient in high-frequency environments, making them susceptible to external interference. There is an urgent need for a high-temperature and bending-resistant radio frequency phase-stable cable to solve the above-mentioned problems. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a high temperature and bend resistance radio frequency phase-stable cable to solve the problems mentioned in the background technology. This utility model solves the problems of insufficient high temperature resistance, poor bend resistance and limited shielding effect in the existing technology by optimizing material selection and structural design.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a high-temperature and bend-resistant radio frequency phase-stabilized cable, comprising an inner conductor, a high-temperature resistant insulation layer, an inner shielding layer, an outer shielding layer, an aramid fiber reinforcing layer, and a bend-resistant sheath. The outer surface of the inner conductor is covered with a silver-plated layer, the high-temperature resistant insulation layer is wrapped around the silver-plated layer, the inner shielding layer is wrapped around the high-temperature resistant insulation layer, the outer shielding layer is fixed to the outside of the inner shielding layer by an adhesive layer, the aramid fiber reinforcing layer is fixedly sleeved around the outer shielding layer, and the bend-resistant sheath is fixed around the aramid fiber reinforcing layer.

[0006] Furthermore, the high-temperature resistant insulating layer is made of polyimide.

[0007] Furthermore, the inner shielding layer is a copper braided layer.

[0008] Furthermore, the outer shielding layer is aluminum foil.

[0009] Furthermore, the bending-resistant sheath is made of thermoplastic elastomer material.

[0010] Furthermore, a warning label is engraved on the front end face of the bending-resistant sheath.

[0011] The beneficial effects of this utility model are as follows: This utility model provides a high-temperature and bend-resistant radio frequency phase-stabilized cable. Because it incorporates a silver-plated layer, a high-temperature resistant insulation layer, an inner shielding layer, an outer shielding layer, an aramid fiber reinforcement layer, and a bend-resistant sheath, our design improvements and practical use have shown that this device has a reasonable structure and good practicality. The high-temperature resistant insulation layer is made of polyimide, while the bend-resistant sheath is made of thermoplastic elastomer, ensuring the cable's stability in high-temperature environments. The aramid fiber reinforcement layer and the thermoplastic elastomer sheath significantly improve the cable's bend resistance and extend its service life. The double-layer shielding structure of the inner and outer shielding layers provides comprehensive electromagnetic shielding, ensuring the stability of signal transmission. Attached Figure Description

[0012] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0013] Figure 1 This is a three-dimensional schematic diagram of the overall structure of a high-temperature and bend-resistant radio frequency phase-stabilized cable according to the present invention.

[0014] Figure 2 This is a schematic diagram of the silver plating layer of a high-temperature and bend-resistant radio frequency phase-stabilized cable according to the present invention.

[0015] Figure 3 This is a top view cross-sectional diagram of a high-temperature and bend-resistant radio frequency phase-stable cable according to the present invention.

[0016] In the diagram: 1-Inner conductor, 2-Silver plating layer, 3-High temperature resistant insulation layer, 4-Inner shielding layer, 5-Adhesive layer, 6-Outer shielding layer, 7-Aramid fiber reinforcement layer, 8-Bending resistant sheath, 9-Instruction label. Detailed Implementation

[0017] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0018] Please see Figures 1-3This utility model provides a technical solution: a high-temperature and bend-resistant radio frequency phase-stabilized cable, comprising an inner conductor 1, a high-temperature resistant insulation layer 3, an inner shielding layer 4, an outer shielding layer 6, an aramid fiber reinforcing layer 7, and a bend-resistant sheath 8. The outer surface of the inner conductor 1 is wrapped with a silver-plated layer 2, the high-temperature resistant insulation layer 3 is wrapped around the silver-plated layer 2, the inner shielding layer 4 is wrapped around the high-temperature resistant insulation layer 3, the outer shielding layer 6 is fixed to the outside of the inner shielding layer 4 by an adhesive layer 5, the aramid fiber reinforcing layer 7 is fixedly sleeved around the outer shielding layer 6, and the bend-resistant sheath 8 is fixed around the aramid fiber reinforcing layer 7. This design solves the problems of insufficient high-temperature resistance, poor bend resistance, and limited shielding effect of existing radio frequency phase-stabilized cables.

[0019] As the first embodiment of this utility model: the high-temperature resistant insulation layer 3 is made of polyimide. The added high-temperature resistant insulation layer 3 is made of polyimide, which can withstand temperatures up to 300°C or higher, ensuring the stability of the cable in a high-temperature environment. In addition, the insulation layer has a uniform thickness, ensuring the insulation performance of the inner conductor 1.

[0020] The inner shielding layer 4 is a copper braided layer, which provides high conductivity and flexibility. The outer shielding layer 6 is an aluminum foil, which provides comprehensive electromagnetic shielding. The inner shielding layer 4 and the outer shielding layer 6 are tightly bonded together by an adhesive layer 5, ensuring the stability of the shielding effect. The bending-resistant sheath 8 is made of thermoplastic elastomer, which provides excellent bending resistance, wear resistance, and chemical corrosion resistance. A label 9 is engraved on the front end of the bending-resistant sheath 8, indicating information about each layer for easy identification by external personnel.

[0021] As a second embodiment of this utility model: the inner conductor 1 is made of high-purity copper material, and a silver-plated layer 2 is designed on the surface to reduce signal transmission loss. The high-temperature resistant insulation layer 3 is made of polyimide material, which can withstand temperatures up to 300°C or higher, ensuring the stability of the cable in high-temperature environments. The insulation layer has a uniform thickness, ensuring the insulation performance of the inner conductor 1. The inner shielding layer 4 is a copper braided layer, which can provide high conductivity and flexibility. The outer shielding layer 6 is made of aluminum foil, which can provide comprehensive electromagnetic shielding effect. The inner shielding layer 4 and the outer shielding layer 6 are tightly bonded together by an adhesive layer 5, which can ensure the stability of the shielding effect. The bending-resistant sheath 8 is made of thermoplastic elastomer material, which has excellent bending resistance, wear resistance and chemical corrosion resistance. An aramid fiber reinforcing layer 7 is set inside the bending-resistant sheath 8 to improve the tensile strength and bending resistance of the cable.

[0022] 1-Inner conductor, 2-Silver plating layer, 3-High temperature resistant insulation layer, 4-Inner shielding layer, 5-Adhesive layer, 6-Outer shielding layer, 7-Aramid fiber reinforcement layer, 8-Bending resistant sheath, 9-Warning label

[0023] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0024] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A high-temperature and bend-resistant radio frequency phase-stabilized cable, comprising an inner conductor (1), a high-temperature resistant insulation layer (3), an inner shielding layer (4), an outer shielding layer (6), an aramid fiber reinforcing layer (7), and a bend-resistant sheath (8), characterized in that: The outer surface of the inner conductor (1) is covered with a silver plating layer (2), the high temperature resistant insulation layer (3) is wrapped around the silver plating layer (2), the inner shielding layer (4) is wrapped around the high temperature resistant insulation layer (3), the outer shielding layer (6) is fixed to the outside of the inner shielding layer (4) by an adhesive layer (5), the aramid fiber reinforcing layer (7) is fixedly sleeved on the outside of the outer shielding layer (6), and the bending resistant sheath (8) is fixed on the outside of the aramid fiber reinforcing layer (7).

2. The high-temperature and bending-resistant radio frequency phase-stabilized cable according to claim 1, characterized in that: The high-temperature resistant insulating layer (3) is made of polyimide.

3. The high-temperature and bending-resistant radio frequency phase-stabilized cable according to claim 1, characterized in that: The inner shielding layer (4) is a copper braided layer.

4. The high-temperature and bending-resistant radio frequency phase-stabilized cable according to claim 1, characterized in that: The outer shielding layer (6) is aluminum foil.

5. The high-temperature and bending-resistant radio frequency phase-stabilized cable according to claim 1, characterized in that: The bending-resistant sheath (8) is made of thermoplastic elastomer material.

6. The high-temperature and bending-resistant radio frequency phase-stabilized cable according to claim 1, characterized in that: The front end face of the bending-resistant sheath (8) is engraved with a warning label (9).

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