CN201181611Y

CN201181611Y - Vehicle-mounted full-CAN low-crosstalk network integrated bus cable

Info

Publication number: CN201181611Y
Application number: CNU2008200336281U
Authority: CN
Inventors: 陈计安
Original assignee: KUNSHAN FIRE-PHOENIX WIRE&CABLE Co Ltd
Current assignee: KUNSHAN FIRE-PHOENIX WIRE&CABLE Co Ltd
Priority date: 2008-03-28
Filing date: 2008-03-28
Publication date: 2009-01-14
Anticipated expiration: 2018-03-28

Abstract

The utility model relates to a network integration bus cable having the characteristics of Vehicle-mounted, full CAN, low interference, which is characterized in that: the outside of a cable core(1) is serially covered with a shielding layer and an outer sheath (2); a shielding separating shelf (3) is arranged on the center of the cable core(1), which is uniformly divided into a plurality of shielding compartments (4) in circumference by the shielding separating shelf (3), and a pair of twisted pair cables (5) are arranged inside each shielding compartment (4). The utility model integrates the prior separate Vehicle-mounted CAN network bus cable into a complete structure so as to reduce the weight of vehicles, save valuable room in the vehicle, reduce the costs and enhance the stability of the electric system of the whole vehicle, and the utility model is simple for maintenance and optimizes the configuration, maintenance and upkeep of the multichannel transmission system.

Description

The low network integration bus cable of crosstalking of vehicle-mounted full CAN

Technical field

The utility model relates to a kind of network-bus cable, is specifically related to the low network integration bus cable of crosstalking of a kind of vehicle-mounted full CAN, can transmit many group CAN bus network signals in this integrated bus cable simultaneously, the integrated function of a plurality of CAN bus network cables.

Background technology

The up-to-date on the market CAN bus that emerges is a German BOSCH company from the beginning of the eighties for solving a kind of serial data communication agreement that control numerous the Hyundai Motor and the exchanges data between the tester are developed, it is a kind of multi-master bus.Its appearance is the revolutionary progress to the orthodox car wiring mode, the distribution total length is saved greatly, vehicle weight alleviates greatly, interior space is optimized utilization greatly, auto cost is minimized, and, can also make running car safer, more intelligent.

The used communication media of CAN bus is modal to be twisted-pair feeder, now normally each CAN network in the automobile (as drive system CAN bus, bodywork system CAN bus, amusement CAN bus, diagnosis CAN bus etc.) is equipped with the twisted-pair feeder cable separately, forms the twisted-pair feeder cable that is exclusively used in transmission drive system CAN bus signals, a series of bus cables such as twisted-pair feeder cable that are exclusively used in transmission bodywork system CAN bus signals.Structurally each is made of twisted-pair feeder outsourcing screen and oversheath these bus twisted-pair feeder cables.These bus cables are the message transmission entities that respectively self-deploy on discrete separately on the structure, the function, do not accomplish to integrate, some identical components in their structures such as screen, restrictive coating exist shared possibility and actuality, if with their being integrated into one bus, obviously can bring total weight to alleviate, cumulative volume dwindles, and saves a series of advantages such as material.

But, in with these twisted pair wire integration process, also have to consider the shielding problem of signal between it is separately, can not as existing copper cable, simply many multiple twin cores be wrapped in the oversheath, its each between twisted-pair feeder crosstalk phenomenon must take place, have a strong impact on transferring of signal.

Summary of the invention

The purpose of this utility model is to solve each bus cable technical problem mutually discrete, that do not integrate in the prior art, and a kind of vehicle-mounted full CAN is provided the low network integration bus cable of crosstalking.

For achieving the above object, the technical solution adopted in the utility model is: the low network integration bus cable of crosstalking of a kind of vehicle-mounted full CAN, constitute by be covered successively outward screen and oversheath of cable core, described cable core center is provided with a shielding isolating frame, this shielding isolating frame upwards evenly is separated into a plurality of shielding compartments with cable core in week, ccontaining a pair of pair twist electric wire in each shielding compartment.

Related content in the technique scheme is explained as follows:

1, in the such scheme, described shielding isolating frame is meant the separation shape support body of tool shielding properties, and preferable employing semiconductive material is as the semiconductive plastics.Preferred version is: the semiconductive plastic processing frame that described shielding isolating frame is a star section.

When the utility model used, each inserted respectively in the CAN bus network the pair twist electric wire, bears the communications task of a CAN bus network.

The utility model design principle and the effect of bringing are: the utility model concentrates in the cable core by common screen and oversheath lining the pair twist electric wire many, be combined as a whole, alleviate vehicle weight, saved the automotive interior expensive real estate, reduced cost, improved the stability of finished vehicle electronic system, and keep in repair easyly, optimized configuration, the care and maintenance of multiplex system; And in order to prevent that each is to crosstalking between the pair twist electric wire, the utility model has been set up a shielding isolating frame especially, with the shielding isolating frame each is separated in shielding compartment separately the pair twist electric wire, location and guaranteed that each line is at a distance of certain distance, shielding intercepted each line between signal influence each other, make each can transmit its vehicle-mounted CAN bus network signal separately, do not disturb mutually the pair twist electric wire.

Description of drawings

Accompanying drawing 1 is the utility model example structure schematic diagram.

In the above accompanying drawing: 1, cable core; 2, oversheath; 3, shielding isolating frame; 4, shielding compartment; 5, pair twist electric wire; 6, metal forming screen; 7, woven shield; 8, conductor wire core; 9, insulating barrier.

Embodiment

Below in conjunction with drawings and Examples the utility model is further described:

Embodiment: shown in accompanying drawing 1, the low network integration bus cable of crosstalking of a kind of vehicle-mounted full CAN, by coated metal paper tinsel screen 6, woven shield 7 and oversheath 2 constitute successively outside the cable core 1, described cable core 1 is made of shielding isolating frame 3 and four pairs of pair twist electric wires 5, shielding isolating frame 3 is the semiconductive plastic processing frame of star section, it be positioned at cable core 1 center just cable core 1 upwards evenly be separated into a plurality of shielding compartments 4 in week, each corresponding ccontaining a pair of pair twist electric wire 5 in each shielding compartment 4.Every pair twist electric wire 5 constitutes by conductor wire core 8 outsourcing insulating layer coatings 9.

Shown in accompanying drawing 1, the four pairs of pair twist electric wires 5 (be I number-IV number) are a corresponding In-vehicle networking bus respectively, as I number corresponding CAN vehicle body network bus, and II number corresponding CAN power and safety net bus, III number corresponding CAN amusement network bus, the IV number corresponding network bus of diagnosing.

Present embodiment is integrated 4 CAN network-bus cables in the automobile have been saved cable material effectively, have been alleviated weight, have optimized space efficiency.And, because the setting of shielding compartment and total outside double layer screen layer, the cable inner wire to crosstalk and the electromagnetic interference of cable outside all is under control effectively; And by corresponding diagnostic logic method, easy to maintenanceization optimized configuration, the care and maintenance of multiplex system during maintenance.

The foregoing description only is explanation technical conceive of the present utility model and characteristics, and its purpose is to allow the personage who is familiar with this technology can understand content of the present utility model and enforcement according to this, can not limit protection range of the present utility model with this.All equivalences of being done according to the utility model spirit change or modify, and all should be encompassed within the protection range of the present utility model.

Claims

1, the low network integration bus cable of crosstalking of a kind of vehicle-mounted full CAN, it is characterized in that: by outer screen and oversheath (2) formation of being covered successively of cable core (1), described cable core (1) center is provided with a shielding isolating frame (3), this shielding isolating frame (3) upwards evenly is separated into a plurality of shielding compartments (4) with cable core (1) in week, ccontaining a pair of pair twist electric wire (5) in each shielding compartment (4).

2, according to the low network integration bus cable of crosstalking of vehicle-mounted full CAN of claim 1, it is characterized in that: described shielding isolating frame (3) is the semiconductive plastic processing frame of star section.