CN212782793U

CN212782793U - Silicone rubber instrument cable

Info

Publication number: CN212782793U
Application number: CN202021963958.8U
Authority: CN
Inventors: 吴俊生; 赵泽伟; 胡琴; 邓勇军; 王文友
Original assignee: Anhui Huaxing Cable Group Co Ltd
Current assignee: Anhui Huaxing Cable Group Co Ltd
Priority date: 2020-09-10
Filing date: 2020-09-10
Publication date: 2021-03-23
Anticipated expiration: 2030-09-10

Abstract

The utility model discloses a silicon rubber instrument cable, its technical scheme main points are: the cable comprises a plurality of cable cores and a supporting piece, wherein an insulating layer is coated outside the conductor, an inner wrapping layer is arranged outside the insulating layer, a first filling layer is arranged between the inner wrapping layer and the insulating layer, the supporting piece comprises an outer supporting plate, an inner supporting column and a connecting plate, the supporting piece is made of ceramic silicon rubber, a second filling layer is arranged between a cavity and the inner wrapping layer, a buffer layer is arranged between the outer supporting plate and the inner wrapping layer, the buffer layer is made of rubber sheets of natural rubber, an outer wrapping layer is coated outside the outer supporting plate, a shielding layer is coated outside the outer wrapping layer, a fireproof layer is coated outside the shielding layer, the fireproof layer is a Kevlar braid, and a sheath layer is arranged outside the fireproof layer; the utility model provides a current instrument cable's crushing resistance relatively poor and the fireproof effect is relatively poor, thereby lead to the insulating layer to destroy easily or burn out the problem that arouses the short circuit accident.

Description

Silicone rubber instrument cable

Technical Field

The utility model belongs to the technical field of the instrument cable technique and specifically relates to a silicon rubber instrument cable.

Background

The cable for the instrument is suitable for signal transmission and control circuits in instruments, instruments and other electrical equipment, the alternating current rated voltage of the cable is below 500V, the long-term working temperature of a cable core is not more than 70 ℃, the allowable bending radius of the cable is not less than 6 times of the outer diameter of the cable, and the laying temperature is not lower than 0 ℃.

At present, the existing instrument cable has poor pressure resistance, an internal insulating layer of the cable is easily damaged after the cable is extruded by external force, and an internal lead is in direct contact and can generate a short circuit phenomenon; meanwhile, the existing instrument cable has poor fireproof effect, and particularly in some harsh occasions, if a fire disaster happens, an insulating layer of the cable is easy to damage or burn, so that a short-circuit accident is caused, and serious consequences are generated.

SUMMERY OF THE UTILITY MODEL

To the problem of mentioning in the background art, the utility model aims at providing a silicon rubber instrument cable to mention in the solution background art because the crushing resistance of current instrument cable is relatively poor and the fireproof effect is relatively poor, thereby lead to the insulating layer to destroy easily or burn and arouse the problem of short circuit accident.

The above technical purpose of the present invention can be achieved by the following technical solutions:

a silicon rubber instrument cable comprises a plurality of cable cores and supporting pieces, wherein each cable core is a wire group unit formed by twisting two groups of conductors in pairs, the outer sides of the conductors are coated with insulating layers, the outer sides of the insulating layers are provided with inner wrapping layers, a first filling layer is arranged between each inner wrapping layer and the corresponding insulating layer, each supporting piece comprises an outer supporting plate, an inner supporting column and connecting plates, the supporting pieces are made of ceramic silicon rubber materials, the outer supporting plates and the inner supporting columns are fixedly connected with each other through eight connecting plates, eight cavities are formed among the outer supporting plates, the inner supporting columns and the connecting plates, the cable cores are arranged inside the eight cavities, a second filling layer is arranged between each cavity and each inner wrapping layer, a buffer layer is arranged between each outer supporting plate and each inner wrapping layer, each buffer layer is made of natural rubber films, the outer sides of the outer supporting plates are, the outside cladding of shielding layer has the flame retardant coating, and the flame retardant coating is kavalra meshbelt, and the outside of flame retardant coating is provided with the restrictive coating.

Further, the conductor adopts annealing copper line to make, and the outside of copper line is provided with the tin coating, and the thickness of tin coating is 1 mm.

By adopting the technical scheme, the tin-plated layer can improve the insulating property of the copper conductor, and the current in each copper conductor is ensured not to interfere.

Furthermore, the insulating layer is formed by extruding vinyl silicone rubber materials.

By adopting the technical scheme, the vinyl silicone rubber has good electrical insulation, and meanwhile has good ablation resistance and radiation resistance.

Furthermore, the first filling layer is made of fireproof daub materials, and the second filling layer is made of ceramic fiber cotton materials.

Through adopting above-mentioned technical scheme, first filling layer sets up to fire prevention clay and makes its inside have good fire behavior, even the wire breaks down and catches fire also can not influence adjacent wire, has characteristics such as light in weight, intensity height, anti-oxidant, the heat conductivity is low, the compliance is good, corrosion-resistant, the heat capacity is little and give sound insulation, is good filler.

Furthermore, the inner wrapping layer and the outer wrapping layer are made of glass fiber tapes.

By adopting the technical scheme, the glass fiber belt has higher fire resistance.

Furthermore, the shielding layer is formed by weaving tinned copper wires.

Through adopting above-mentioned technical scheme, make the utility model discloses possess stronger shielding external signal interference's ability.

Furthermore, the sheath layer is made of a phenylene silicone rubber material.

By adopting the technical scheme, the phenylene silicone rubber has good mechanical property, good tensile strength and excellent high-temperature resistance and radiation resistance.

Furthermore, a plurality of heat dissipation holes are uniformly formed in the outer sides of the outer supporting plate and the buffer layer.

Through adopting the technical scheme, make the utility model discloses have good heat dissipation function at the during operation.

To sum up, the utility model discloses mainly have following beneficial effect:

1. the utility model discloses a, be provided with support piece through the inside at the cable, with many cable core settings in support piece's inside, support piece has played good guard action to the cable core, receives the extrusion back when the cable, and support piece can offset great pressure for the cable core, protects inside cable core and does not receive the damage, is provided with the buffer layer simultaneously outside backup pad and interior between the covering, can further play good buffering protect function to the inside cable core of support piece.

2. The utility model has the advantages that the fireproof layer is coated on the outer side of the shielding layer and is made of Kevlar braid which also has excellent temperature resistance, and the Kevlar braid can be continuously used within the temperature range of-196 ℃ to 204 ℃ without obvious change or loss; meanwhile, the fireproof heat-resistant paint also has excellent fireproof performance and excellent temperature resistance which can bear short-time contact at the temperature of 538 ℃.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic structural view of the supporting member of the present invention.

In the figure: 1. a conductor; 2. an insulating layer; 3. an inner wrapping layer; 4. a first filling layer; 5. a support member; 501. an outer support plate; 502. an inner support column; 503. a connecting plate; 6. a second filling layer; 7. a buffer layer; 8. an outer wrap cladding; 9. a shielding layer; 10. a fire barrier layer; 11. a sheath layer; 12. and (4) heat dissipation holes.

Detailed Description

In order to make the objects and technical solutions of the present invention clear and fully described, and the advantages thereof more clearly understood, the embodiments of the present invention are described in further detail below with reference to the accompanying drawings.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "inner", "outer", "top", "bottom", "side", "vertical", "horizontal", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," "fourth," "fifth," and "sixth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1

Referring to fig. 1-2, a silicone rubber instrument cable comprises eight cable cores and a supporting member 5, wherein each cable core is a wire group unit formed by twisting two groups of conductors 1 in pairs, the outer sides of the conductors 1 are coated with insulating layers 2, the outer side of each insulating layer 2 is provided with an inner wrapping layer 3, a first filling layer 4 is arranged between each inner wrapping layer 3 and each insulating layer 2, each supporting member 5 comprises an outer supporting plate 501, an inner supporting column 502 and a connecting plate 503, each supporting member 5 is made of a ceramic silicone rubber material, the ceramic silicone rubber material is a novel high polymer fire-resistant material, and provides a novel, safe and economical fire-resistant cable for fire control and fire prevention, the outer supporting plate 501 and the inner supporting column 502 are fixedly connected with each other through the eight connecting plates 503, eight cavities are formed between the outer supporting plate 501, the inner supporting columns 502 and the connecting plates 503, the cable cores are arranged inside the eight cavities, and a second filling layer 6 is, a buffer layer 7 is arranged between the outer support plate 501 and the inner wrapping layer 3, the buffer layer 7 is made of natural rubber films, the cable core is tightly contacted with the connecting plate 503 and the buffer layer 7, the thermal conductivity and the aging resistance are good, an outer wrapping layer 8 is wrapped outside the outer support plate 501, a shielding layer 9 is wrapped outside the outer wrapping layer 8, a fireproof layer 10 is wrapped outside the shielding layer 9, the fireproof layer 10 is a kevlar braid which also has excellent temperature resistance, and the cable core can be continuously used within a temperature range of-196 degrees to 204 degrees without obvious change or loss reduction; meanwhile, the fireproof coating has the characteristics of insolubility, fire resistance and carbonization only at 427 degrees, does not become brittle and lose performance even at the low temperature of-196 degrees, has excellent temperature resistance capable of enduring short-time contact at the temperature of 538 degrees, and is provided with a sheath layer 11 on the outer side of the fireproof layer 10.

Referring to fig. 1, a conductor 1 is made of an annealed copper wire, and a tin plating layer having a thickness of 1mm is provided on an outer side of the copper wire.

Referring to fig. 1, the insulating layer 2 is formed by extruding vinyl silicone rubber material.

Referring to fig. 1, the first filling layer 4 is made of a fireproof daub material, and the second filling layer 6 is made of a ceramic fiber cotton material.

Referring to fig. 1, the inner wrapping layer 3 and the outer wrapping layer 8 are made of glass fiber tapes.

Referring to fig. 1, the shielding layer 9 is braided with a tin-plated copper wire.

Referring to fig. 1, the sheath layer 11 is made of a phenylene silicone rubber material.

Referring to fig. 1 and 2, a plurality of heat dissipation holes 12 are uniformly formed in the outer sides of the outer support plate 501 and the buffer layer 7, and the heat dissipation holes 12 in the outer support plate 501 are communicated with the heat dissipation holes 12 in the buffer layer 7.

When the utility model is used, the support piece 5 is arranged in the cable, a plurality of cable cores are arranged in the support piece 5, the support piece 5 plays a good protection role for the cable cores, when the cable is extruded, the support piece 5 can offset large pressure for the cable cores, the cable cores in the cable cores are protected from being damaged, meanwhile, the buffer layer 7 is arranged between the outer support plate 501 and the inner wrapping layer 3, and a good buffering protection function can be further played for the cable cores in the support piece 5; the fireproof layer 10 is coated on the outer side of the shielding layer 9, the fireproof layer 10 is made of Kevlar braid, and the Kevlar braid also has excellent temperature resistance, so that the fireproof layer can be continuously used within the temperature range of-196 ℃ to 204 ℃ without obvious change or loss; meanwhile, the fireproof heat-resistant paint also has excellent fireproof performance and excellent temperature resistance which can bear short-time contact at the temperature of 538 ℃.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a silicon rubber instrument cable, includes many cable cores and support piece (5), its characterized in that: the cable core is a wire group unit formed by twisting two groups of conductors (1) in pairs, an insulating layer (2) is coated on the outer side of each conductor (1), an inner wrapping layer (3) is arranged on the outer side of each insulating layer (2), a first filling layer (4) is arranged between each inner wrapping layer (3) and each insulating layer (2), each supporting piece (5) comprises an outer supporting plate (501), an inner supporting column (502) and a connecting plate (503), each supporting piece (5) is made of ceramic silicon rubber, the outer supporting plate (501) and the inner supporting column (502) are fixedly connected with each other through eight connecting plates (503), eight cavities are formed among the outer supporting plate (501), the inner supporting column (502) and the connecting plate (503), the cable core is arranged inside the eight cavities, and a second filling layer (6) is arranged between each cavity and the inner wrapping layer (3), outer backup pad (501) with it is provided with buffer layer (7) around between covering (3) to wind in, buffer layer (7) adopt natural rubber's film to make, the outside cladding of outer backup pad (501) has outer covering (8), the outside cladding of outer covering (8) has shielding layer (9), the outside cladding of shielding layer (9) has flame retardant coating (10), flame retardant coating (10) are kevlar meshbelt, the outside of flame retardant coating (10) is provided with restrictive coating (11).

2. The silicone rubber instrument cable according to claim 1, wherein: the conductor (1) is made of an annealed copper wire, a tin-plated layer is arranged on the outer side of the copper wire, and the thickness of the tin-plated layer is 1 mm.

3. The silicone rubber instrument cable according to claim 1, wherein: the insulating layer (2) is formed by extruding vinyl silicone rubber materials.

4. The silicone rubber instrument cable according to claim 1, wherein: the first filling layer (4) is made of fireproof daub materials, and the second filling layer (6) is made of ceramic fiber cotton materials.

5. The silicone rubber instrument cable according to claim 1, wherein: the inner wrapping layer (3) and the outer wrapping layer (8) are made of glass fiber tapes.

6. The silicone rubber instrument cable according to claim 1, wherein: the shielding layer (9) is formed by weaving tinned copper wires.

7. The silicone rubber instrument cable according to claim 1, wherein: the sheath layer (11) is made of phenylene silicon rubber materials.

8. The silicone rubber instrument cable according to claim 1, wherein: a plurality of heat dissipation holes (12) are uniformly formed in the outer supporting plate (501) and the outer side of the buffer layer (7).