CN215600153U

CN215600153U - Novel on-vehicle AHD camera line

Info

Publication number: CN215600153U
Application number: CN202120803040.5U
Authority: CN
Inventors: 段敬东
Original assignee: Guangdong Yijia Wire And Cable Technology Development Co ltd
Current assignee: Guangdong Yijia Wire And Cable Technology Development Co ltd
Priority date: 2021-04-20
Filing date: 2021-04-20
Publication date: 2022-01-21
Anticipated expiration: 2031-04-20

Abstract

The utility model belongs to the technical field of camera lines, and particularly relates to a novel vehicle-mounted AHD camera line, which comprises a signal line for signal transmission, a power line for current transmission, and an aluminum foil layer, a shielding layer and an outer tegument layer which are sequentially wrapped outside the signal line and the power line; the power line comprises a power conductor inner core arranged in the center of the power line and a power insulation layer wrapped outside the power conductor inner core; the signal wire comprises a signal conductor inner core arranged in the center of the signal wire, a signal insulating layer wrapped outside the signal conductor inner core and a signal shielding layer wrapped outside the signal insulating layer; and the power conductor inner core and the signal conductor inner core are both of a bunch structure formed by twisting a plurality of annealed copper wires in the same twisting direction. The novel vehicle-mounted AHD camera line disclosed by the utility model not only has good bending resistance, high temperature resistance and flame retardant property, but also can effectively improve the stability of signal transmission of the camera line.

Description

Novel on-vehicle AHD camera line

Technical Field

The utility model belongs to the technical field of camera lines, and particularly relates to a novel vehicle-mounted AHD camera line.

Background

The AHD camera line is a connecting line used for connecting a simulation high-definition camera and transmitting a high-definition analog signal. In the prior art, connecting wires for connecting cameras are various and can basically meet the requirements of production and use.

SUMMERY OF THE UTILITY MODEL

In order to improve and perfect the prior art, the utility model provides a novel vehicle-mounted AHD camera line.

The technical effect to be achieved by the utility model is realized by the following technical scheme:

the novel vehicle-mounted AHD camera line comprises a signal line for signal transmission, a power line for current transmission, an aluminum foil layer, a shielding layer and a tegument layer, wherein the aluminum foil layer, the shielding layer and the tegument layer are sequentially wrapped outside the signal line and the power line; the power line comprises a power conductor inner core arranged in the center of the power line and a power insulation layer wrapped outside the power conductor inner core; the signal wire comprises a signal conductor inner core arranged in the center of the signal wire, a signal insulating layer wrapped outside the signal conductor inner core and a signal shielding layer wrapped outside the signal insulating layer; and the power conductor inner core and the signal conductor inner core are both of a bunch structure formed by twisting a plurality of annealed copper wires in the same twisting direction. Compare with the camera line among the prior art: 1) the power supply conductor inner core and the signal conductor inner core of the bunch structure not only can enable the conductor inner cores to be twisted more compactly and roundly, but also can enable the camera line to have better bending resistance; 2) the insulating layer wraps the outer part of the conductor inner core, and the outer layers wrap the outer parts of the signal wire and the power wire, so that the camera wire has good high-temperature resistance and flame retardant property; 3) the signal shielding layer wraps the outside of the signal insulating layer, and the aluminum foil layer and the shielding layer wrap the outside of the signal wire and the power wire, so that the interference of external signals can be effectively shielded, and the stability of signal transmission of the camera wire is improved; 4) and the outer wrapping layers wrap the outer portions of the aluminum foil layer and the shielding layer, so that the aluminum foil layer and the shielding layer can be effectively prevented from being corroded, and the aluminum foil layer and the shielding layer are protected from external influence and mechanical damage.

Furthermore, the power line and the signal line are stranded in the same twisting direction to form a main structure part of the camera line, so that the whole structure of the camera line is more compact, and the bending resistance of the camera line can be effectively improved; preferably, the wire gauge of the power line is 24-18AWG, the number of the power lines is 2-4, and the wire gauge of the signal line is 26-22 AWG.

Further, the twisting pitch of the power line and the signal line is 15-35 times of the twisting outer diameter of the power line and the signal line.

Further, the stranding pitch of the power supply conductor inner core is 10-25 times of the stranding outer diameter of the power supply conductor inner core; the stranding pitch of the signal conductor inner core is 10-25 times of the stranding outer diameter of the signal conductor inner core.

Furthermore, the signal shielding layer comprises a first shielding layer wrapped outside the signal insulating layer and an aluminum foil shielding layer wrapped outside the first shielding layer, so that the anti-interference performance of the signal line can be effectively guaranteed, and preferably, the shielding rate of the first shielding layer is more than or equal to 80%.

Furthermore, the first shielding layer is a shielding wire structure spirally wound on the surface of the signal insulation layer, or a braided shielding net structure wrapped on the surface of the signal insulation layer.

Further, the aluminum foil shielding layer and the aluminum foil layer are single-sided aluminum foils or double-sided aluminum foils, and the thickness is 0.025-0.05 mm.

Further, the shielding layer is of a woven aluminum mesh or woven copper mesh structure wrapped on the surface of the aluminum foil layer, and preferably, the shielding rate of the shielding layer is more than or equal to 80%.

Furthermore, the nylon wire weaving layer wraps the exterior of the outer coating layer, so that the wear resistance of the camera line can be effectively improved, the camera line is suitable for vehicle-mounted movement and foreign object friction, the outer coating layer of the camera line is not damaged, and preferably, the shielding rate of the nylon wire weaving layer is more than or equal to 65%.

Furthermore, the power supply insulating layer is made of PVC or XLPE, the signal insulating layer is made of PE or PVC, and the outer coating layer is made of PVC, TPE, TPU or XLPE; the used materials can not deform and melt under the influence of the temperature of minus 40 ℃ to 105 ℃, and the flame retardant coating has good high temperature resistance and flame retardant property and good weather resistance.

In summary, the novel vehicle-mounted AHD camera line of the present invention has at least the following benefits:

the novel vehicle-mounted AHD camera line disclosed by the utility model has good bending resistance, high temperature resistance and flame retardant property, can effectively shield the interference of external signals, and improves the stability of the signal transmission of the camera line.

Drawings

Fig. 1 is a schematic cross-sectional structure view of a novel vehicle-mounted AHD camera line in the embodiment of the present invention.

Fig. 2 is a schematic cross-sectional structure diagram of a power line according to an embodiment of the utility model.

Fig. 3 is a schematic cross-sectional structure diagram of a signal line in an embodiment of the utility model.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described in detail and completely with reference to the accompanying drawings. The described embodiments are a few embodiments of the utility model, rather than all embodiments.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

As shown in fig. 1, in a preferred embodiment, the novel vehicle-mounted AHD camera line of the present invention includes a signal line 10 for signal transmission, a power line 20 for current transmission, and an aluminum foil layer 30, a shielding layer 40, an outer coating layer 50 and a nylon braid layer 60 sequentially wrapped outside the signal line 10 and the power line 20. The power line 20 and the signal line 10 are twisted in the same twisting direction to form a main structure part of the camera line, so that the whole structure of the camera line is more compact, and the bending resistance of the camera line can be effectively improved; preferably, the power line 20 has a wire gauge of 24-18AWG and a number of 2-4, and the signal line 10 has a wire gauge of 26-22 AWG; and the twisting pitch of the power line 20 and the signal line 10 is 15-35 times of the outer diameter of the twisting of the power line 20 and the signal line 10.

As shown in fig. 2, the power cord 20 includes a power conductor core 21 disposed in the center of the power cord 20, and a power insulation layer 22 wrapped outside the power conductor core 21; as shown in fig. 3, the signal line 10 includes a signal conductor core 11 disposed in the center of the signal line 10, a signal insulation layer 12 wrapped outside the signal conductor core 11, and a signal shielding layer 13 wrapped outside the signal insulation layer 12; the power conductor inner core 21 and the signal conductor inner core 11 are both of a bunch structure formed by twisting a plurality of annealed copper wires in the same twisting direction, so that the twisting of the conductor inner cores is more compact and round, and the camera wire has better bending resistance; preferably, the twisting pitch of the power conductor inner core 21 is 10-25 times of the twisting outer diameter of the power conductor inner core 21, and the twisting pitch of the signal conductor inner core 11 is 10-25 times of the twisting outer diameter of the signal conductor inner core 11.

As shown in fig. 3, the signal shielding layer 13 includes a first shielding layer 131 wrapping the outside of the signal insulating layer 12, and an aluminum foil shielding layer 132 wrapping the outside of the first shielding layer 131; the first shielding layer 131 is a shielding line structure spirally wound on the surface of the signal insulating layer 12, or a braided shielding net structure wrapped on the surface of the signal insulating layer 12, and preferably, the shielding rate of the first shielding layer 131 is greater than or equal to 80%; the aluminum foil shielding layer 132 is a single-sided aluminum foil or a double-sided aluminum foil, and has a thickness of 0.025-0.05 mm. The aluminum foil layer 30 is a single-sided aluminum foil or a double-sided aluminum foil, and the thickness is 0.025-0.05 mm; the shielding layer 40 is a woven aluminum mesh or a woven copper mesh structure wrapped on the surface of the aluminum foil layer 30, and preferably, the shielding rate of the shielding layer 40 is greater than or equal to 80%. The signal shielding layer 13 is combined with the aluminum foil layer 30 and the shielding layer 40, so that the interference of external signals can be effectively shielded, and the stability of the signal transmission of the camera line is improved.

Preferably, the power insulation layer 12 is made of PVC or XLPE, the signal insulation layer 12 is made of PE or PVC, and the outer layer 50 is made of PVC, TPE, TPU or XLPE; the used materials can not deform and melt under the influence of the temperature of minus 40 ℃ to 105 ℃, and the flame retardant coating has good high temperature resistance and flame retardant property and good weather resistance. The outer tegument layer 50 is wrapped outside the aluminum foil layer 30 and the shielding layer 40, so that the aluminum foil layer 30 and the shielding layer 40 can be effectively prevented from being corroded, and the aluminum foil layer 30 and the shielding layer 40 are protected from external influence and mechanical damage; and the nylon wire braided layer 60 wraps the exterior of the outer tegument 50, so that the wear resistance of the camera line can be effectively improved, the camera line is suitable for vehicle-mounted movement and foreign object friction, the outer tegument 50 of the camera line is not damaged, and preferably, the shielding rate of the nylon wire braided layer 60 is more than or equal to 65%.

According to the technical scheme of the embodiment, the novel vehicle-mounted AHD camera line provided by the utility model has the advantages of good bending resistance, high temperature resistance and flame retardance, and can effectively shield the interference of external signals and improve the signal transmission stability of the camera line.

While the utility model has been described in conjunction with the specific embodiments set forth above, it is evident that many alternatives, modifications, and variations will be apparent to those skilled in the art in light of the foregoing description. Accordingly, it is intended to embrace all such alternatives, modifications, and variations that fall within the spirit and scope of the appended claims.

Claims

1. A novel vehicle-mounted AHD camera line comprises a signal line for signal transmission, a power line for current transmission, an aluminum foil layer, a shielding layer and a tegument layer, wherein the aluminum foil layer, the shielding layer and the tegument layer are sequentially wrapped outside the signal line and the power line; the method is characterized in that:

the power line comprises a power conductor inner core arranged in the center of the power line and a power insulation layer wrapped outside the power conductor inner core;

the signal wire comprises a signal conductor inner core arranged in the center of the signal wire, a signal insulating layer wrapped outside the signal conductor inner core and a signal shielding layer wrapped outside the signal insulating layer;

and the power conductor inner core and the signal conductor inner core are both of a bunch structure formed by twisting a plurality of annealed copper wires in the same twisting direction.

2. The vehicle-mounted AHD camera wire of claim 1, wherein the power supply wire and the signal wire are twisted in the same twist direction, and wherein the power supply wire has a wire gauge of 24-18AWG and 2-4 AWG, and the signal wire has a wire gauge of 26-22 AWG.

3. The vehicle-mounted AHD camera wire of claim 2, wherein a twist pitch of the power and signal wires is 15-35 times an outer diameter of a twist of the power and signal wires.

4. The vehicle-mounted AHD camera line of claim 1, wherein a strand pitch of the power conductor inner core is 10-25 times a strand outer diameter of the power conductor inner core;

the stranding pitch of the signal conductor inner core is 10-25 times of the stranding outer diameter of the signal conductor inner core.

5. The vehicle-mounted AHD camera line of claim 1, wherein the signal shielding layer comprises a first shielding layer wrapped outside the signal insulating layer, and an aluminum foil shielding layer wrapped outside the first shielding layer.

6. The vehicle-mounted AHD camera wire of claim 5, wherein the first shielding layer is a shielding wire structure spirally wound on the surface of the signal insulation layer, or a braided shielding mesh structure wrapped on the surface of the signal insulation layer.

7. The on-vehicle AHD camera line according to claim 5, wherein the aluminum foil shielding layer and the aluminum foil layer are single-sided aluminum foils or double-sided aluminum foils and have a thickness of 0.025 mm to 0.05 mm.

8. The vehicle-mounted AHD camera line of claim 1, wherein the shielding layer is a woven aluminum mesh or woven copper mesh structure wrapped around a surface of the aluminum foil layer.

9. The vehicle-mounted AHD camera line of claim 1, wherein the outer layer is externally wrapped with a nylon wire braid.

10. The vehicle-mounted AHD camera line of claim 1, wherein the power insulation layer is PVC or XLPE, the signal insulation layer is PE or PVC, and the outer layer is PVC, TPE, TPU, or XLPE.