CN219418530U

CN219418530U - Pulse cable

Info

Publication number: CN219418530U
Application number: CN202320576745.7U
Authority: CN
Inventors: 李华斌; 李焱霖; 聂磊; 何也
Original assignee: Hunan Valin Wire and Cable Co Ltd
Current assignee: Hunan Valin Wire and Cable Co Ltd
Priority date: 2023-03-22
Filing date: 2023-03-22
Publication date: 2023-07-25
Anticipated expiration: 2033-03-22

Abstract

The utility model discloses a pulse cable, which comprises a cable core, an outer shielding layer and a sheath layer, wherein a silicone rubber layer is filled between the cable core and the outer shielding layer, the silicone rubber layer is formed by twisting methyl vinyl silicone rubber containing phenyl, the cable core is formed by twisting a main line conductor and a ground wire conductor, and a semiconductive rubber inner shielding layer is arranged on the outer surface of the cable core.

Description

Pulse cable

Technical Field

The utility model belongs to the technical field of wires and cables, and particularly relates to a pulse cable.

Background

In some medical equipment, such as an X-ray machine and a CT machine, a high-voltage generator and an X-ray tube are connected together through two high-voltage-resistant wires, the wires are pulse cables, the use conditions are very harsh, long-term high-voltage resistance and stability are required, meanwhile, the cables for the medical equipment work in an environment with large fluctuation of a temperature range for a long time, the environment temperature is generally used to be-60 ℃ to 180 ℃, strict requirements are provided for the temperature resistance of the cables, but the high-voltage cables for the medical equipment at present cannot be high-voltage-resistant and good in temperature resistance.

Accordingly, the present utility model provides a pulse cable to solve the above-mentioned problems in the prior art.

Disclosure of Invention

The utility model aims to provide a pulse cable which can be used for medical equipment pulse cables, and the cable can resist 75KV high voltage outwards and can resist low temperature of minus 100 ℃ and high temperature of 200 ℃.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the pulse cable comprises a cable core, an outer shielding layer and a sheath layer, and is characterized in that a silicon rubber layer is filled between the cable core and the outer shielding layer;

the thickness of the silicon rubber layer is 3.2 mm-6.8 mm;

the silicone rubber layer is formed by methyl vinyl silicone rubber containing phenyl.

According to one of the technical schemes of the high-temperature-resistant oil-resistant cable, the high-temperature-resistant oil-resistant cable at least has the following beneficial effects:

in the cable, a silicone rubber layer is filled between a cable core and an outer shielding layer, the silicone rubber layer is formed by kilovolt low temperature resistant silicone rubber, the cable is prepared by introducing a phenyl compound into common methyl vinyl silicone rubber, and the stereoregularity of dimethyl siloxane in the methyl vinyl silicone rubber is destroyed after the phenyl compound is introduced, so that the crystallization temperature and the glass transition temperature of a polymer are greatly reduced, the silicone rubber has low temperature resistance, the low temperature resistance can reach-100 ℃, and meanwhile, organic silicon in the methyl vinyl silicone rubber has the characteristic of high temperature resistance.

As still further aspects of the utility model: the cable core is formed by twisting a main line conductor and a ground wire conductor.

As still further aspects of the utility model: the pitch multiple of the stranding is 6-10 times.

The utility model adopts the pitch multiple of 6-10 times, can ensure that the semiconductive layer is round and has no convex sharp angle so as to ensure high voltage resistance, and in addition, the pitch multiple of cabling can influence the electrical performance of the cable. Smaller pitch multiples can improve the electrical performance of the cable, such as reducing the resistance and inductance of the cable, and reduce crosstalk and loss of the cable. However, too small a pitch multiple can increase cable loss and noise, affecting signal quality. Second, the pitch factor of the cabling also affects the mechanical properties of the cable. The proper pitch multiple can improve the tensile strength and the wear resistance of the cable, so that the cable is more durable. However, an excessive pitch multiple increases the flexibility and bending radius of the cable, but may decrease the tensile strength and wear resistance of the cable.

As still further aspects of the utility model: the outer surface of the main line conductor is wrapped with an F4 insulating layer;

the outer surface of the ground wire conductor is wrapped with a semi-conductive band.

The utility model respectively insulates and protects the main line conductor and the ground line conductor, and improves the pressure resistance of the cable.

As still further aspects of the utility model: and a semiconductive rubber inner shielding layer is arranged on the outer surface of the cable core.

According to the utility model, the semiconductive rubber inner shielding layer is arranged in the cable, so that the effect of a smooth electric field can be achieved, and the high voltage resistance of the cable is improved.

As still further aspects of the utility model: the thickness of the semiconductive rubber inner shielding layer is 0.8 mm-1.2 mm.

As still further aspects of the utility model: the outer shielding layer is sequentially provided with a semiconductive rubber layer, a semiconductive belt and a silver-plated copper wire braided shielding layer from inside to outside.

The semi-conductive rubber layer plays a role in preliminary protection, the wrapping semi-conductive belt can prevent the silver-plated copper wire braided shielding layer on the outer layer from being punctured or from being crushed by the silicon rubber layer and the semi-conductive rubber layer, the silver-plated copper wire braided shielding layer can effectively shield external interference signals, the quality and stability of cable transmission signals are guaranteed, meanwhile, signal leakage inside the cable can be effectively prevented, and surrounding environment is protected from interference.

As still further aspects of the utility model: the sheath layer is composed of silicone rubber.

As still further aspects of the utility model: the thickness of the sheath layer is 1.8 mm-2.5 mm.

Compared with the prior art, the utility model has the beneficial effects that:

the utility model adopts methyl vinyl silicone rubber containing phenyl as a filling layer in the cable and controls the thickness of the methyl vinyl silicone rubber in the cable, so that the pulse cable provided by the utility model can resist 75KV high pressure, can resist low temperature of minus 100 ℃ and high temperature of 200 ℃, and can be used for medical equipment.

Drawings

The present utility model is further described below with reference to the accompanying drawings for the convenience of understanding by those skilled in the art.

Fig. 1 is a schematic structural diagram of a pulse cable according to an embodiment of the present utility model.

Reference numerals illustrate: 100. a ground wire; 101. a main wire; 102. a semiconductive belt; 103. f4 insulating layers; 104. a semiconductive rubber inner shield layer; 105. a silicone rubber layer; 106. an outer shielding layer; 107. and a sheath layer.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the particular embodiments described herein are illustrative only and are not intended to limit the utility model, i.e., the embodiments described are merely some, but not all, of the embodiments of the utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the utility model, as 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 made by a person skilled in the art without making any inventive effort, are intended to be within the scope of the present utility model.

The present embodiment provides a pulse cable.

As shown in FIG. 1, the pulse cable provided by the embodiment of the utility model comprises a cable core, an outer shielding 106 layer and a sheath layer 107, wherein a silicone rubber layer 105 is filled between the cable core and the outer shielding layer 106, the silicone rubber layer 105 is formed by methyl vinyl silicone rubber containing phenyl, the thickness is 5.2mm, high-voltage resistance is provided for the pulse cable, meanwhile, the methyl vinyl silicone rubber contains phenyl, the original regularity of the silicone rubber is changed, the pulse cable has the characteristics of high temperature resistance and low temperature resistance, the cable core is formed by twisting a main wire conductor 101 and a ground wire conductor 100, the twisting pitch multiple is 6 times, the low pitch multiple improves the electrical performance of the cable, the main wire conductor 101 is formed by twisting a 19/0.32 silver-plated copper conductor, the ground wire conductor 100 is formed by twisting a 42/0.15 tin-plated copper wire, the outer surface of the main line conductor 101 is wrapped with the F4 insulating layer 103, preliminary insulation is achieved on the main line conductor 101, the outer surface of the ground line conductor 100 is wrapped with the semiconductive belt 102, preliminary protection can be achieved on the ground line conductor 100, the semiconductive rubber inner shielding layer 104 is arranged on the outer surface of the cable core, the thickness is 1.0mm, protection is achieved on the silicone rubber layer 105, the silicone rubber layer 105 is prevented from being scratched or pressed, the semiconductive rubber layer, the semiconductive belt and the silver-plated copper wire braiding shielding layer are sequentially arranged on the outer surface of the semiconductive rubber inner shielding layer 104 from inside to outside, an outer shielding layer 106 is formed together, signal leakage inside a cable is effectively prevented, the surrounding environment is protected from being disturbed, the outermost layer of the cable is provided with the sheath layer 107 with the thickness of 1.9mm, the cable can be protected from being scratched to a certain extent, and meanwhile, the cable has certain high-temperature and low-temperature resistant performance.

In the embodiment of the utility model, the pulse cable can resist 75KV high voltage outwards, can resist low temperature of minus 100 ℃ and high temperature of 200 ℃, has good electrical performance, can be used as a high-voltage cable of medical equipment, and can work in an environment with large fluctuation of a temperature range for a long time.

The utility model is limited only by the claims and the full scope and equivalents thereof, and furthermore, the terms "first", "second", and "third" are used for descriptive purposes only and are not to be interpreted as indicating or implying a relative importance or an implicit indication of the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

The foregoing is merely illustrative of the structures of this utility model and various modifications, additions and substitutions for those skilled in the art can be made to the described embodiments without departing from the scope of the utility model or from the scope of the utility model as defined in the accompanying claims.

Claims

1. The pulse cable comprises a cable core, an outer shielding layer and a sheath layer, and is characterized in that a silicon rubber layer is filled between the cable core and the outer shielding layer;

the thickness of the silicon rubber layer is 3.2 mm-6.8 mm;

2. A pulse cable according to claim 1, wherein the cable core is stranded from a main wire conductor and a ground wire conductor.

3. A pulse cable according to claim 2, characterized in that the pitch multiple of the twist is 6-10 times.

4. A pulse cable according to claim 2, wherein the main conductor outer surface is wrapped with an F4 insulation;

5. A pulse cable according to claim 1, characterized in that the outer surface of the cable core is provided with an inner shielding layer of semiconducting rubber.

6. The pulse cable of claim 5, wherein the inner shielding layer of semiconductive rubber has a thickness of 0.8mm to 1.2mm.

7. The pulse cable of claim 1, wherein the outer shielding layer is a semiconductive rubber layer, a semiconductive tape, and a silver-plated copper wire braid shielding layer in that order from inside to outside.

8. A pulse cable according to claim 1, wherein the sheath layer is comprised of silicone rubber.

9. A pulse cable according to claim 1, wherein the sheath layer has a thickness of 1.8mm to 2.5mm.