CN223513667U - A composite medical imaging transmission cable combining DP and USB - Google Patents

Abstract

This utility model relates to the field of transmission cable technology, and in particular to a DP and USB composite medical imaging transmission cable, comprising: a USB cable, a DP cable, a first core, and a second core twisted together in the same outer sheath; wherein the DP cable includes several signal pairs and several control lines, and the several signal pairs are circumferentially distributed outside the several control lines; in this utility model, by integrating the USB cable and the DP cable together, composite signal transmission is achieved, greatly improving functionality. Secondly, the signal pairs in the DP cable are made of finely twisted copper wires twisted together to form conductors. The tighter the conductor is twisted, the smaller the bending radius of the cable and the better the bending performance. In addition, the insulation layer outside each core of the DP cable is made of foamed PE sheath, a composite layer of foamed PE foam layer and foamed PE sheath. The foaming material can make the insulation have a lower equivalent dielectric constant, reduce signal transmission loss and better match impedance.

Description

DP and USB composite medical image transmission cable

Technical Field

The utility model relates to the technical field of transmission cables, in particular to a DP and USB composite medical image transmission cable.

Background

With the continuous development of technology, video transmission technology is increasingly used in various fields. Particularly in the fields of medical image transmission, high-definition video playing and the like, higher requirements are put on the speed and quality of video transmission. Conventional video transmission cables have been difficult to meet these demands, and thus, new high-speed video transmission cables have become a hot spot of research.

The DP1.4 cable is an emerging video transmission cable, has a data transmission rate of 1.4Gbps, adopts a copper cable technology, and has higher transmission bandwidth and stability.

The current DP combined USB2.0 cable is generally applied to transmission of medical images, and is generally adapted to large-scale medical equipment such as CT machines and nuclear magnetic resonance, however, the existing DP1.4 cable has certain limitation on functionality, such as stability, anti-interference capability and the like of the existing DP1.4 cable in signal transmission, and needs to be further improved.

Based on this, in order to solve the above-mentioned problems, we propose a DP and USB composite medical image transmission cable.

Disclosure of utility model

The utility model aims to solve the defects of poor stability, poor anti-interference capability and the like of signal transmission in the prior art, and provides a DP and USB composite medical image transmission cable.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

Designing a DP and USB composite medical image transmission cable, comprising:

the USB wire, the DP wire, the first wire core and the second wire core are stranded in the same outer cover;

The DP line comprises a plurality of signal line pairs and a plurality of control lines, and the signal line pairs are circumferentially distributed on the outer sides of the control lines;

the outer sides of the signal wire pairs are coated with an inner quilt, and the inner quilt and the signal wire pairs are also provided with ground wires.

Further, the USB line comprises a signal line composed of two third wire cores and two fourth wire cores;

and the outer sides of the third wire core and the fourth wire core are also coated with an inner quilt II.

Further, the inner sides of the first inner quilt and the second inner quilt are respectively provided with a braiding layer and an aluminum foil layer in sequence, wherein a first filling piece is also placed in the first inner quilt.

Further, the first wire core comprises two conductors, an inner third cover wrapping the outer sides of the two conductors, and a filling piece II is further filled in the inner side of the inner third cover.

Further, the inner side of the outer cover is also filled with a filling piece IV.

Further, the wires of the signal wire pair are tin-plated conductors with a plurality of strands of normal stranded copper wires phi=0.08 mm.

Furthermore, the outer quilt, the inner quilt I, the inner quilt II and the inner quilt III are all set as modified polyvinyl chloride adhesive layers, and the core wire insulating layer of the signal wire pair is set as a composite layer consisting of a foaming PE skin, a foaming PE foam layer and a foaming PE skin.

The DP and USB composite medical image transmission cable has the beneficial effects that the USB wire and the DP wire are integrated together to realize composite signal transmission, functionality is greatly improved, the thinner copper wires which are normally twisted are adopted as signal wires in the DP wire to be twisted into conductors, the more tightly twisted conductors are, the smaller the bending radius of the cable is, the better bending performance is achieved, in addition, the insulating layers outside each core wire of the DP wire are all the composite layers of the foamed PE skin, the foamed PE foam layer and the foamed PE skin, the foaming material can enable insulation to have lower equivalent dielectric constant, loss in signal transmission is reduced, and better matching impedance is realized, meanwhile, the foaming structure can obviously reduce the diameter and weight of the core wire, light weight of the wire is realized, and the stability of signal transmission is ensured.

Drawings

Fig. 1 is a schematic structural view of the present utility model.

In the figure, 1, an outer cover; 2, USB wire, 21, third wire core, 22, fourth wire core, 23, second inner wire core, 3, DP wire, 31, signal wire pair, 32, control wire, 33, first inner wire core, 34, ground wire, 35, braiding layer, 36, aluminum foil layer, 37, first filling element, 4, first wire core, 41, conductor, 42, third inner wire core, 43, second filling element, 5, second wire core, 6, fourth filling element.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

Referring to fig. 1, an embodiment of the present utility model discloses a DP and USB composite medical image transmission cable, and the cable in this embodiment specifically includes:

the USB wire 2, the DP wire 3, the first wire core 4 and the second wire core 5 twisted in the same outer cover 1, preferably, the second wire core 5 in this embodiment can be used as a ground wire, which also includes a conductor and an insulating layer coated on the conductor;

The DP line 3 includes a plurality of signal line pairs 31 and a plurality of control lines 32, where the signal line pairs 31 are circumferentially distributed on the outer sides of the plurality of control lines 32, specifically, in this embodiment, the signal line pairs 31 are five, and the control lines 32 are four, so as to form a DP1.4 signal line;

The outer side of the signal line pair 31 is covered with an inner quilt 33, and the inner quilt 33 and the signal line pair 31 are also provided with a ground wire 34.

In some embodiments, the USB cable 2 in this embodiment includes a signal cable composed of two third cable cores 21, and two fourth cable cores 22;

The third wire core 21 and the fourth wire core 22 are further covered with an inner cover 23, that is, in this embodiment, a USB2.0 signal line is formed by the third wire core 21 and the two fourth wire cores 22, and the two specific fourth wire cores 22 may be provided as VBUS lines and ground lines, which are conventional means for those skilled in the art, and are not repeated herein.

On the basis of the above embodiment, in this embodiment, the inner quilt 33 and the inner quilt 23 are sequentially provided with a braid layer 35 and an aluminum foil layer 36, preferably, the braid layer is a metal braid layer in this embodiment, the aluminum foil layer 36 is used for shielding, so as to avoid interference of each core wire to the surrounding in the process of transmitting signals, preferably, the aluminum foil is made of aluminum foil, and the aluminum foil is preferably made of aluminum foil, can be processed into a strip shape in advance, and optionally, is in a spiral winding cladding mode, wherein a filler one 37 is also placed in the inner quilt 33.

When the assembly is in cable, the cable is assembled by using the disc winch platform, the twisting distance of the cable reaches 200mm, the back twist is performed during winding, the spiral tension of the wire is reduced, the back twist rate in the specific embodiment is 50%, the damage to the signal wire structure caused by the rotation torsion during winding of the wire with large wire diameter is avoided, and the high-frequency performance is ensured to be complete.

In a further embodiment, the first wire core 4 includes two conductors 41, the conductors 41 include wires and an insulating layer, the same insulating structure can be adopted for each wire core conductor in this embodiment, which is not repeated herein, and the second wire core 4 further includes an inner cover three 42 wrapped on the outer sides of the two conductors 41, and a filling member two 43 is further filled on the inner sides of the inner cover three 42, where the first wire core 4 in this embodiment can be used but is not limited to a power wire, so as to further the functionality of the transmission cable.

Specifically, the conductor 41 and the second wire core 5 in the utility model are marked by an integral structure of the conductor and insulation, the conductor and the insulation are mainly power supply groups of the whole wire harness, the insulation material is SR-PVC, which is totally called semi-rigid polyvinyl chloride, the molecular polymerization degree of the SR-PVC is higher, the mechanical property is better, the SR-PVC on the hardness is harder to 90A (Shore hardness unit), and meanwhile, the cable harness has flame retardant property like common PVC.

Furthermore, the inner side of the outer cover 1 in this embodiment is further filled with a fourth filler 6, wherein in this embodiment, each filler may be made of a fiber material, such as cotton yarn, synthetic fiber, etc., which has good elasticity and flexibility, and may be used to maintain the circular structure of the cable, and the filler may ensure the roundness of the wire, so as to avoid conductor breakage in advance due to asymmetry of the inner space in the swing test.

In some embodiments, the wires of the signal pair 31 in the present utility model are tin-plated conductors with a plurality of strands of normally twisted copper wires Φ=0.08 mm, and of course, the wires in other cores may also be normally twisted, with a plurality of thinner normally twisted copper wires twisted conductors, the tighter the conductor is twisted, the smaller the bending radius of the cable is, the better the bending performance is, and secondly, the twisting mode of the conductor may affect the bending performance of the cable, and the common twisting mode includes normal twisting and beam twisting, wherein single wires with equal diameters are used for normal twisting, and the single wires are concentrically arranged and layered twisted, and each layer of single wires are fixed. The mode is favorable for production and organization, the wires are bendable and stable, the twisted wires are regular in shape and consistent in outer diameter, so that the bending performance of the cable is improved, in addition, the third wire core 21 adopts a single copper wire which is a thinner twisted conductor, the bending flexibility is excellent, and the tension residual quantity of the conductor during bending is reduced.

In addition, the outer quilt 1, the inner quilt 33, the inner quilt 23 and the inner quilt three 42 are all arranged as modified polyvinyl chloride adhesive layers, the modified polyvinyl chloride adhesive layers, and the improved extruded adhesive can meet the temperature grade of 80 ℃, can meet the UL short-term aging test and has the fire resistance of the VW-1 grade;

In addition, the core insulation layer of the signal wire pair 31 is a composite layer composed of a foamed PE skin, a foamed PE foam layer and a foamed PE skin, and the insulation layer is directly attached to a conductor, corresponding to one signal wire, namely, in this embodiment, the composite layer structure is adopted for insulation of the DP group signal wire core, the foaming degree of the PE foam layer is 45%, the foaming process can enable insulation to have a lower equivalent dielectric constant, reduce loss in signal transmission and better matching impedance, meanwhile, the core wire diameter and weight can be obviously reduced by using the foaming structure, weight of the wire is reduced, the foaming structure can be more uniform by using physical foaming, and stability of signal transmission can be ensured.

In summary, the USB wire 2 and the DP wire 3 are integrated together to realize composite signal transmission, so that the functionality is greatly improved, the signal wire pair 31 in the DP wire 3 is twisted into a conductor by adopting a plurality of normally twisted copper wires, the conductor is twisted more tightly, the smaller the bending radius of the cable is, the better the bending performance is, in addition, the insulating layers outside each core wire of the DP wire 3 are all composite layers of foamed PE (polyethylene) skin, foamed PE foam layers and foamed PE skin, the foamed materials can enable insulation to have lower equivalent dielectric constants, reduce loss in signal transmission and better matching impedance, and meanwhile, the foamed structure can obviously reduce the core wire diameter and weight, so that the light weight of the wire is realized, and the stability of signal transmission can be ensured.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims (7)

1. A DP and USB composite medical image transmission cable, comprising:

A USB wire (2), a DP wire (3), a first wire core (4) and a second wire core (5) which are stranded in the same outer cover (1);

The DP line (3) comprises a plurality of signal line pairs (31) and a plurality of control lines (32), and the signal line pairs (31) are circumferentially distributed on the outer sides of the control lines (32);

The outer side of the signal line pair (31) is coated with an inner quilt (33), and the inner quilt (33) and the signal line pair (31) are also provided with a ground wire (34).

2. The DP and USB composite medical image transmission cable according to claim 1, wherein the USB cable (2) comprises a signal line composed of two third wire cores (21) and two fourth wire cores (22);

And the outer sides of the third wire core (21) and the fourth wire core (22) are also coated with an inner quilt (23).

3. The DP and USB composite medical image transmission cable according to claim 2, wherein the inner quilt (33) and the inner quilt (23) are sequentially provided with a braid layer (35) and an aluminum foil layer (36), and a filler (37) is further disposed inside the inner quilt (33).

4. The DP and USB composite medical image transmission cable according to claim 2, wherein the first wire core (4) comprises two conductors (41), an inner cover (42) wrapping the outer sides of the two conductors (41), and a filler second (43) filled inside the inner cover (42).

5. The DP and USB composite medical image transmission cable according to claim 1, wherein the inner side of the outer cover (1) is further filled with a filling piece IV (6).

6. The DP and USB composite medical image transmission cable according to any one of claims 1 to 5, wherein the wires of the signal pair (31) are tin-plated conductors of stranded regular copper wire Φ=0.08 mm.

7. The DP and USB composite medical image transmission cable according to any one of claims 1 to 5, wherein the outer cover (1), the inner cover one (33), the inner cover two (23) and the inner cover three (42) are all provided as modified polyvinyl chloride adhesive layers, and the core wire insulating layer of the signal wire pair (31) is provided as a composite layer consisting of a foamed PE sheath, a foamed PE foam layer and a foamed PE sheath.