Communication cable for automobile
By designing a communication cable for automobiles including aluminum foil layer, braided layer and outer sheath, the problem of existing cables prone to burst in harsh environments is solved, and flexibility, toughness, heat resistance and liquid corrosion resistance are achieved, ensuring the stable use of the cable in high and low temperature environments.
Patent Information
- Application Number
- CN202421780889.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-26
- Publication Date
- 2025-06-24
- Estimated Expiration
- 2034-07-26
AI Technical Summary
Existing automotive communication cables are prone to burst under harsh environments such as high temperature and liquid immersion, resulting in fires, explosions and other accidents, and it is difficult to meet the requirements of flexibility, toughness, bending resistance, heat resistance and liquid corrosion resistance.
A communication cable for automobiles is designed, including a cable core and a protective layer. The cable core is composed of an inner liner layer and multiple sets of stranded conductors. The protective layer is composed of an aluminum foil layer, a braided layer and an outer cover layer. The aluminum foil layer is covered outside the inner liner layer, the braided layer is covered outside the aluminum foil layer, and the outer cover layer is covered outside the braided layer.
The cable exhibits good stability and wear resistance in high-temperature and low-temperature environments, and can be used stably under strong bending deformation, meeting the performance experimental requirements of high-temperature long-term thermal aging and low-temperature winding.
Smart Images
Figure CN223022940U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of automotive communication, and particularly relates to a communication cable for automobiles. Background Art
[0002] Since the 21st century, with the rapid development of China's science and technology and economy, the requirements for automobiles have become increasingly high. With the addition of functions such as audio-visual entertainment and intelligent driving in the vehicle, the traditional in-vehicle bus with high real-time and low bandwidth has begun to not adapt to the development trend of automotive electronics.
[0003] With the continuous increase of functional requirements and electronic devices in the vehicle, the dimensional requirements for electronic devices and their connecting communication cables are getting higher and higher. On the one hand, it is required that the cable has a certain flexibility and toughness, which is convenient for laying and bundling during assembly, and can maintain a certain internal structure during bending deformation. On the other hand, the communication cable used in the vehicle generally has a relatively harsh working environment (high temperature, liquid immersion, etc.). If the cable has problems, it will burst, which is likely to cause accidents such as fire and explosion. At present, the market has a large demand for vehicle cables that can work in complex environments and have stable performance.
[0004] Therefore, how to prepare a cable with flexibility, toughness, good resistance to bending, heat, and liquid corrosion, and can ensure stable use even under strong bending deformation has become a technical problem to be solved at present. Content of the Utility Model
[0005] The utility model provides a communication cable for automobiles in order to overcome the deficiencies existing in the prior art.
[0006] The technical solution adopted by the utility model to solve the above technical problems is as follows:
[0007] A communication cable for automobiles includes a cable core and a protective layer arranged outside the cable core. Among them, the cable core includes an inner liner layer and multiple groups of stranded conductors arranged in the inner liner layer; the protective layer includes an aluminum foil layer, a braided layer, and an outer protective layer. Among them, the aluminum foil layer is coated on the outer side of the inner liner layer; the braided layer is coated on the outer layer of the aluminum foil layer; the outer protective layer is coated on the outer side of the braided layer.
[0008] Preferably, there are two groups of the stranded conductors.
[0009] Preferably, the stranded conductors are composed of multiple strands of tinned copper wires.
[0010] Preferably, the cross-sectional area of each strand of tinned copper wire is 0.13 mm 2 .
[0011] Preferably, the inner liner layer is made of PP material.
[0012] Preferably, the aluminum foil layer is a single-layer aluminum foil.
[0013] Preferably, the single-layer aluminum foil is composed of a layer of polyester mylar and a layer of aluminum foil.
[0014] Preferably, the outer protective layer is made of PVC or TPE material.
[0015] Compared with the prior art, the utility model has the following advantages and beneficial effects:
[0016] The characteristic impedance of the communication cable for automobiles of the utility model is 100±5%Ω, the return loss performance can meet <14dB@600Mhz, the attenuation performance can meet 6.6dB / m@600Mhz, the longitudinal transmission conversion loss (SDC12) can meet >50dB for 100Mhz - 600Mhz, and the physical and mechanical properties are stable. According to the requirements of ISO19642, it can meet the performance experiments such as 105°C for 3000h long-term heat aging, 130°C for 240h short-term heat aging, and -40°C low-temperature winding, and has good wear resistance, oil resistance and other properties. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a cross-sectional view of the communication cable for automobiles of the utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0018] The following will further describe the utility model in detail in conjunction with the embodiments and the drawings, but the embodiments of the utility model are not limited thereto.
[0019] Example 1
[0020] See Figure 1 , the communication cable for automobiles of the utility model includes a cable core and a protective layer arranged outside the cable core. Among them, the cable core includes an inner lining layer 4 and multiple groups of stranded conductors 5 arranged in the inner lining layer; the protective layer includes an aluminum foil layer 3, a braided layer 2 and an outer protective layer 1. Among them, the aluminum foil layer 2 is coated outside the inner lining layer 4; the braided layer 2 is coated outside the aluminum foil layer 3; the outer protective layer 2 is coated outside the braided layer 2.
[0021] In this embodiment, there are two groups of the stranded conductors 5, and each group of stranded conductors 5 is composed of multiple strands of tinned copper wires, and the cross-sectional area of each strand of tinned copper wire is 0.13mm 2 .
[0022] See Figure 1 , the inner lining layer 4 is made of PP material with good flame retardancy.
[0023] See Figure 1 , the aluminum foil layer 3 is a single-layer aluminum foil, and the single-layer aluminum foil is composed of a layer of polyester mylar and a layer of aluminum foil.
[0024] See Figure 1 , the outer protective layer 1 is made of PVC or TPE material.
[0025] The electrical performance test of the communication cable for automobiles of the present utility model is as follows: (attenuation performance)
[0026] Frequency Attenuation dB / m Frequency Attenuation dB / m 10Mhz 0.1 100Mhz 0.36 20Mhz 0.15 130Mhz 0.42 40Mhz 0.2 200Mhz 0.53 50Mhz 0.25 400Mhz 0.76 60Mhz 0.28 600Mhz 0.95
[0027] Example 2
[0028] The difference between this embodiment and Embodiment 1 is that:
[0029] The stranded conductor 5 in the communication cable for automobiles of the present utility model is in three groups.
[0030] Example 3
[0031] The difference between this embodiment and Embodiment 1 is that:
[0032] The stranded conductor 5 in the communication cable for automobiles of the present utility model is in four groups.
[0033] The above are the preferred embodiments of the present utility model, but the embodiments of the present utility model are not limited to the above content. Any other changes, modifications, substitutions, combinations, and simplifications made without departing from the spirit and principle of the present utility model shall be equivalent replacement methods and are all included in the protection scope of the present utility model.
Claims
1. A communication cable for automobile, characterized in that: It comprises a cable core and a protective layer arranged outside the cable core, wherein the cable core comprises an inner lining layer and a plurality of groups of twisted wire conductors arranged in the inner lining layer; the protective layer comprises an aluminum foil layer, a braided layer and an outer sheath, wherein the aluminum foil layer is coated on the outer side of the inner lining layer; the braided layer is coated on the outer layer of the aluminum foil layer; and the outer sheath is coated on the outer side of the braided layer.
2. The automotive communication cable according to claim 1, characterized in that: The stranded conductors are divided into two groups.
3. The automotive communication cable according to claim 2, characterized in that: The stranded conductor is composed of a plurality of tinned copper wires.
4. The automotive communication cable according to claim 3, characterized in that: The cross-sectional area of each tinned copper wire is 0.13mm 2 .
5. The automotive communication cable according to claim 1, characterized in that: The inner lining layer is made of PP material.
6. The automotive communication cable according to claim 1, characterized in that: The aluminum foil layer is a single-layer aluminum foil.
7. The automotive communication cable according to claim 6, characterized in that: The single-layer aluminum foil consists of a layer of polyester Mylar and a layer of aluminum foil.
8. The automotive communication cable according to claim 1, characterized in that: The outer protective layer is made of PVC or TPE material.