DP and USB composite medical image transmission cable

Abstract

The utility model relates to the technical field of transmission cables, in particular to a DP and USB composite medical image transmission cable, which comprises a USB wire, a DP wire, a first wire core and a second wire core which are stranded in the same jacket, wherein the DP line comprises a plurality of signal line pairs and a plurality of control lines, and the plurality of signal line pairs are circumferentially distributed on the outer sides of the plurality of control lines; according to the utility model, the USB line and the DP line are integrated together to realize composite signal transmission, the functionality is greatly improved, the signal line pair in the DP line adopts a plurality of regularly twisted thinner copper wires to be twisted into the conductors, the tighter the conductors are twisted, the smaller the bending radius of the cable is, and the better the bending performance is. In addition, the insulation layer outside each core wire of the DP wire adopts the foaming PE skin and the composite layer of the foaming PE foam layer and the foaming PE skin, and the foaming material can enable the insulation to have a lower effective dielectric constant, reduce the loss in signal transmission and better match impedance.

Description

Technical Field

[0001] This utility model relates to the field of transmission cable technology, and in particular to a DP and USB composite medical imaging transmission cable. Background Technology

[0002] With the continuous development of technology, video transmission technology is being used more and more widely in various fields. Especially in areas such as medical image transmission and high-definition video playback, higher demands are being placed on the speed and quality of video transmission. Traditional video transmission cables can no longer meet these needs; therefore, new high-speed video transmission cables have become a research hotspot.

[0003] DP1.4 cable is a new type of video transmission cable with a data transmission rate of 1.4Gbps. It uses copper cable technology and has high transmission bandwidth and stability.

[0004] Currently, DP combined with USB 2.0 cables are commonly used for medical image transmission and are widely compatible with large medical equipment such as CT scanners and MRI machines. However, existing DP 1.4 cables have certain limitations in functionality, such as the stability of signal transmission and anti-interference capabilities, which need to be further improved.

[0005] Based on this, in order to solve the above problems, we propose a composite medical imaging transmission cable of DP and USB. Utility Model Content

[0006] The purpose of this invention is to address the shortcomings of existing technologies, such as poor signal transmission stability and interference resistance, by proposing a DP and USB composite medical imaging transmission cable.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] Design a composite medical imaging transmission cable that combines DP and USB, including:

[0009] USB cable, DP cable, first wire core and second wire core twisted together in the same outer sheath;

[0010] The DP line includes several signal line pairs and several control lines, with the signal line pairs circumferentially distributed outside the control lines.

[0011] The signal line pair is covered by an inner sheath, and the inner sheath and the signal line pair are also provided with a ground wire.

[0012] Furthermore, the USB cable includes a signal line consisting of two third wires and two fourth wires;

[0013] The outer sides of the third and fourth cores are also covered with an inner sheath.

[0014] Furthermore, both inner lining one and inner lining two are provided with a woven layer and an aluminum foil layer on their inner sides in sequence, and a filling element one is also placed inside inner lining one.

[0015] Furthermore, the first core includes two conductors, an inner sheath covering the outside of the two conductors, and a filler element two filling the inside of the inner sheath.

[0016] Furthermore, the inner side of the outer cover is also filled with filler four.

[0017] Furthermore, the conductors of the signal line pair are tin-plated conductors with Φ=0.08mm of regularly twisted copper wire.

[0018] Furthermore, the outer sheath, inner sheath one, inner sheath two, and inner sheath three are all made of modified polyvinyl chloride adhesive layer, and the core wire insulation layer of the signal wire pair is made of a composite layer composed of foamed PE sheath, foamed PE foam layer, and foamed PE sheath.

[0019] This utility model proposes a DP and USB composite medical imaging transmission cable, which has the following advantages: Firstly, by integrating the USB and DP cables together to achieve composite signal transmission, its functionality is greatly enhanced. Secondly, the signal pairs in the DP cable are made of finely twisted copper wires, resulting in a conductor. The tighter the twisting, the smaller the bending radius and the better the bending performance. Furthermore, the insulation layer of each core wire in the DP cable uses a composite layer of foamed PE sheath, foamed PE foam layer, and foamed PE sheath. The foaming material allows the insulation to have a lower equivalent dielectric constant, reducing signal transmission loss and better matching impedance. Simultaneously, the foamed structure significantly reduces the core wire diameter and weight, achieving lightweight cable design and ensuring stable signal transmission. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model.

[0021] In the diagram: 1. Outer sheath; 2. USB cable; 21. Third core; 22. Fourth core; 23. Inner sheath two; 3. DP cable; 31. Signal pair; 32. Control line; 33. Inner sheath one; 34. Ground wire; 35. Braided layer; 36. Aluminum foil layer; 37. Filler one; 4. First core; 41. Conductor; 42. Inner sheath three; 43. Filler two; 5. Second core; 6. Filler four. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Reference Figure 1 As one embodiment of this utility model, a DP and USB composite medical imaging transmission cable is disclosed. Specifically, the cable in this embodiment includes:

[0024] The USB cable 2, DP cable 3, first core 4 and second core 5 are twisted together in the same outer sheath 1. Preferably, the second core 5 described in this embodiment can be used as a ground wire, and it also includes a conductor and an insulating layer covering the conductor.

[0025] The DP line 3 includes several signal line pairs 31 and several control lines 32. The signal line pairs 31 are circumferentially distributed on the outside of the control lines 32. Specifically, in this embodiment, there are five signal line pairs 31 and four control lines 32, thus forming the DP1.4 signal line.

[0026] The signal line pair 31 is covered by an inner sheath 33, and the inner sheath 33 and the signal line pair 31 are also provided with a ground wire 34.

[0027] In some embodiments, the USB cable 2 in this embodiment includes a signal line composed of two third cores 21 and two fourth cores 22;

[0028] An inner sheath 23 is also wrapped around the outside of the third core 21 and the fourth core 22. That is, in this embodiment, the USB 2.0 signal line is composed of the third core 21 and the two fourth cores 22. Specifically, the two fourth cores 22 can be set as VBUS line and ground line. This structure is a conventional method for those skilled in the art and will not be described in detail here.

[0029] Based on the above embodiments, in this embodiment, both the inner lining 33 and the inner lining 23 are sequentially provided with a braided layer 35 and an aluminum foil layer 36. Preferably, the braided layer in this embodiment is a metal braided layer, and the aluminum foil layer 36 is used for shielding to avoid interference to the surroundings during signal transmission by each core wire. Preferably, it is aluminum foil Mylar, which can be pre-processed into a strip and can be optionally wrapped in a spiral winding manner. A filler 37 is also placed inside the inner lining 33.

[0030] During cable assembly, a coiling machine is used to assemble the cables, with a twist pitch of 200mm. During take-up, the twist is de-twisted to reduce the spiral tension of the wire. Specifically, in this embodiment, the de-twisting rate is 50%, which avoids damage to the signal line structure caused by rotational torque during take-up of large-diameter wires and ensures the integrity of high-frequency performance.

[0031] In a further embodiment, the first core 4 of this utility model includes two conductors 41, each conductor 41 including a wire and an insulation layer. In this embodiment, each core conductor can adopt the same insulation structure, which will not be elaborated here. It also includes an inner sheath 42 covering the outside of the two conductors 41. The inner side of the inner sheath 42 is also filled with a filler 43. The first core 4 described in this embodiment can be used but is not limited to a power line, thereby further enhancing the functionality of this transmission cable.

[0032] Specifically, in this utility model, conductor 41 and second core 5 represent the overall structure of conductor and insulation. These two are mainly the power supply group of the entire wire harness. The insulation material is SR-PVC, short for semi-rigid polyvinyl chloride. SR-PVC has a higher degree of molecular polymerization, better mechanical properties, and is harder, reaching 90A (Shore hardness unit). At the same time, like ordinary PVC, it also has flame-retardant properties.

[0033] Furthermore, in this embodiment, the inner side of the outer sheath 1 is also filled with a filler 6. Each of the fillers in this embodiment can be made of fibrous materials, such as cotton yarn or synthetic fibers. These materials have good elasticity and softness and can be used to maintain the circular structure of the cable. The filler material can ensure the roundness of the wire and avoid premature conductor breakage due to internal space asymmetry during the swing test.

[0034] In some embodiments, the conductor of the signal wire pair 31 in this invention is a tin-plated conductor with multiple strands of regularly twisted copper wire Φ=0.08mm. Of course, the conductors in other cores can also be regularly twisted. Using regularly twisted conductors with finer copper wires results in a tighter twist, leading to a smaller bending radius and better bending performance. Secondly, the twisting method also affects the bending performance of the cable. Common twisting methods include regular twisting and bundle twisting. Regular twisting uses single wires of equal diameter, arranged concentrically, and twisted in layers with a fixed number of single wires in each layer. This method is beneficial for production and organization, as the conductors are flexible and stable, and the twisted shape is regular with a consistent outer diameter, thereby improving the bending performance of the cable. In addition, the third core 21 uses a single strand of finer copper wire, which has excellent bending flexibility and reduces the residual tension of the conductor during bending.

[0035] In addition, the outer sheath 1, inner sheath 1 33, inner sheath 23 and inner sheath 3 42 are all made of modified polyvinyl chloride adhesive layer. The modified polyvinyl chloride adhesive layer and the improved extruded rubber can meet the temperature rating of 80°C, can meet the UL short-term aging test, and have VW-1 level fire resistance.

[0036] Furthermore, the core wire insulation layer of the signal line pair 31 is set as a composite layer composed of foamed PE sheath, foamed PE foam layer, and foamed PE sheath. The insulation layer is directly attached to the conductor. For each signal line, the core wire insulation of the DP group signal line adopts a composite layer structure. In this embodiment, the PE foam layer has a foaming degree of 45%. The foaming process can make the insulation have a lower equivalent dielectric constant, reduce signal transmission loss, and better match impedance. At the same time, the use of foam structure can significantly reduce the core wire diameter and weight, realize the lightweighting of the wire. The use of physical foaming can make the foam structure more uniform and ensure the stability of signal transmission.

[0037] In summary, this utility model integrates the USB cable 2 and the DP cable 3 together to achieve composite signal transmission, greatly improving functionality. Secondly, the signal pairs 31 in the DP cable 3 are made of finely twisted copper wires, resulting in a conductor. The tighter the twisting, the smaller the bending radius and the better the bending performance. Furthermore, the insulation layers of each core wire in the DP cable 3 are made of foamed PE sheath, a composite layer of foamed PE foam layers, and foamed PE sheath. The foaming material allows the insulation to have a lower equivalent dielectric constant, reducing signal transmission loss and better matching impedance. Simultaneously, the foamed structure significantly reduces the core wire diameter and weight, achieving lightweight cable design and ensuring stable signal transmission.

[0038] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A composite medical imaging transmission cable combining DP and USB, characterized in that, include: USB cable (2), DP cable (3), first core (4) and second core (5) twisted together in the same outer sheath (1); The DP line (3) includes a plurality of signal line pairs (31) and a plurality of control lines (32), wherein the plurality of signal line pairs (31) are circumferentially distributed on the outside of the plurality of control lines (32); The outer side of the signal line pair (31) is covered by an inner sheath (33), and the inner sheath (33) and the signal line pair (31) are also provided with a ground wire (34).

2. The DP and USB composite medical imaging transmission cable according to claim 1, characterized in that: The USB cable (2) includes a signal line consisting of two third cores (21) and two fourth cores (22); The outer sides of the third core (21) and the fourth core (22) are also covered with an inner sheath (23).

3. The DP and USB composite medical imaging transmission cable according to claim 2, characterized in that: Both inner lining one (33) and inner lining two (23) are provided with a woven layer (35) and an aluminum foil layer (36) in sequence, and a filler one (37) is placed inside the inner lining one (33).

4. The DP and USB composite medical imaging transmission cable according to claim 2, characterized in that: The first core (4) includes two conductors (41), an inner sheath (42) covering the outside of the two conductors (41), and a filler (43) filling the inside of the inner sheath (42).

5. The DP and USB composite medical imaging transmission cable according to claim 1, characterized in that: The inner side of the outer cover (1) is also filled with filler four (6).

6. A DP and USB composite medical imaging transmission cable according to any one of claims 1-5, characterized in that: The conductor of the signal line pair (31) is a tin-plated conductor with Φ=0.08mm of regular twisted copper wire.

7. A DP and USB composite medical imaging transmission cable according to any one of claims 1-5, characterized in that: The outer sheath (1), inner sheath one (33), inner sheath two (23) and inner sheath three (42) are all configured as modified polyvinyl chloride adhesive layers, and the core wire insulation layer of the signal line pair (31) is configured as a composite layer composed of foamed PE skin, foamed PE foam layer and foamed PE skin.

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