A cable for industrial automation equipment

Abstract

The present invention provides a cable for industrial automation equipment, comprising a copper conductor and an insulating layer wrapping the copper conductor; a pressure-resistant layer is arranged on the surface of the insulating layer away from the center of the cable; the pressure-resistant layer comprises a first support layer bonded to the insulating layer, a plurality of first support members are arranged on the first support layer, a support net is fixed on one end of the plurality of support members away from the pressure-resistant layer, a plurality of second support members are arranged on the support net, a second support layer is arranged on one end of the plurality of second support members away from the support net, the second support layer wraps all the second support members, wherein the fixing points of the first support member and the second support member with the support net are the intersection points of the support net, and the supporting points of the first support member and the second support member are both the tangent points of the layers. The technical problem that the cable is damaged and the service life of the cable is shortened due to the lack of a rigid support structure, resulting in poor anti-extrusion ability.

Description

Technical Field

[0001] The present invention relates to the technical field of cables, and in particular to a cable for industrial automation equipment. Background Art

[0002] At present, many major equipments of large enterprises use cables for the transmission and distribution of electric energy. As my country's urbanization process accelerates and the electric power industry develops rapidly, the development of industrial automation equipment has been further promoted. In industrial automation equipment, cables are essential equipment components for the operation of equipment, and the comprehensive performance requirements of cables are getting higher and higher. The compression resistance of cables is also an important performance consideration in the comprehensive performance of cables. Therefore, enhancing the compression resistance of cables is an important indicator of cable improvement.

[0003] A fireproof and extrusion-resistant industrial silicone rubber cable with Chinese patent publication number CN206421842U includes: a cable core, a wrapping layer, a thermal insulation layer, an armor layer, and a sheath layer; the cable core is formed by twisting a plurality of conductors, each of which includes a conductor located in the middle and an insulating layer wrapped around the outside of the conductor; the wrapping layer is wrapped around the outside of the cable core, the wrapping layer is wrapped with a metal-plastic composite tape, the thermal insulation layer is wrapped around the outside of the wrapping layer, the thermal insulation layer is made of a flexible ceramic silicone rubber material, a plurality of heat dissipation through holes extending axially are provided in the thermal insulation layer, the inner wall of each heat dissipation through hole is covered with a metal coating, the armor layer is wrapped around the outside of the thermal insulation layer, and the sheath layer is wrapped around the outside of the armor layer. In the process of the cable being squeezed, the cable is damaged due to the lack of a rigid supporting structure, thereby shortening the service life of the cable. Summary of the invention

[0004] The object of the present invention is to provide a fireproof cable for industrial automation equipment.

[0005] A cable for industrial automation equipment, comprising a copper conductor and an insulating layer wrapping the copper conductor; a pressure-resistant layer is arranged on the surface of the insulating layer away from the center of the cable; the pressure-resistant layer comprises a first supporting layer bonded to the insulating layer, a plurality of first supporting members are arranged on the first supporting layer, a supporting net is fixed to one end of the plurality of supporting members away from the pressure-resistant layer, a plurality of second supporting members are arranged on the supporting net, a second supporting layer is arranged at one end of the plurality of second supporting members away from the supporting net, the second supporting layer wraps all the second supporting members, wherein the fixing points of the first supporting members and the second supporting members with the supporting net are the intersection points of the supporting net, and the supporting points of the first supporting members and the second supporting members are both the tangent points of their layers.

[0006] Preferably, a third support member is fixed between several of the first support members, one fixing point of the third support member is located at a fixing point between the first support member and the insulating layer, and another fixing point of the third support member is located at a fixing point between an adjacent first support member and the support mesh.

[0007] Preferably, an area of ​​a fixing point between the first support member and the first support layer is larger than a cross-sectional area of ​​the first support member.

[0008] Preferably, the first support member is a support rod.

[0009] Preferably, the cross section of the support rod is cross-shaped.

[0010] Preferably, the first support member is configured as an insulator.

[0011] Preferably, the pressure-resistant layers are arranged at intervals along the axial direction of the copper conductor, and a single pressure-resistant layer is in a sealed state.

[0012] Preferably, the cross section of the first support member is polygonal.

[0013] Preferably, the second supporting layer is configured as a heat conducting layer.

[0014] Preferably, a waterproof layer is attached to the surface of the heat-conducting layer away from the center of the copper conductor, and the heat-conducting layer is used to dry the waterproof layer.

[0015] Compared with the prior art, the present invention has the following beneficial effects: a pressure-resistant layer is arranged through an insulating layer, the pressure-resistant layer includes a first supporting layer and a second supporting layer, a plurality of first supporting members and a second supporting member are arranged on the first supporting layer and the second supporting layer respectively, a supporting net is arranged between the plurality of second supporting members and the second supporting member, and the fixing points of the first supporting member and the second supporting member and the supporting net are set as the intersection points of the supporting net, the supporting points of the first supporting member and the second supporting member are both the tangent points of the layers, the pressure-resistant layer supports the insulating layer of the cable, the first supporting member and the second supporting member are fixed at the intersection points of the supporting net, so that the first supporting member and the second supporting member are fixed at the intersection points of the supporting net. The pressure exerted on the support is dispersed on the grid units of the support network, and because the fixing points of the first support member and the second support member and the support network are at the intersection of the support network, the grid units of the support network that bear the force distribution are increased, and the force exerted on the first support member and the second support member is reduced, thereby improving the compressive strength of the first support member and the second support member, and further enhancing the support of the entire compression-resistant layer for the cable, thereby improving the compressive strength of the cable, making it less likely for the cable to be crushed, and extending the service life of the cable, and solving the technical problem of poor extrusion resistance due to the lack of a rigid support structure, causing damage to the cable and shortening the service life of the cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of the cable for industrial automation equipment according to the present invention;

[0017] Figure 2 for Figure 1 Enlarged schematic diagram of part A in the middle.

[0018] Wherein, the accompanying drawings are marked as follows:

[0019] 1. Copper conductor; 2. Waterproof layer; 3. Insulation layer; 4. Pressure-resistant layer; 41. First support layer; 42. Second support layer; 43. Second support member; 44. Support mesh; 45. First support member; 46. Third support member. DETAILED DESCRIPTION

[0020] The embodiments described below are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] The present invention provides a home use embodiment 1, for details, please refer to Figure 1 .

[0022] A cable for industrial automation equipment, characterized in that it includes a copper conductor 1 and an insulating layer 3 wrapping the copper conductor 1; a pressure-resistant layer 4 is arranged on the surface of the insulating layer 3 away from the center of the cable; the pressure-resistant layer 4 includes a first support layer 41 that is bonded to the insulating layer 3, a plurality of first support members 45 are arranged on the first support layer 41, a support net 44 is fixed on one end of the plurality of support members away from the pressure-resistant layer 4, a plurality of second support members 43 are arranged on the support net 44, a second support layer 42 is arranged on one end of the plurality of second support members 43 away from the support net 44, and the second support layer 42 wraps all the second support members 43, wherein the fixing points of the first support members 45 and the second support members 43 and the support net 44 are the intersection points of the support net 44, and the supporting points of the first support members 45 and the second support members 43 are both the tangent points of their layers.

[0023] In this embodiment, a pressure-resistant layer 4 is provided through the insulating layer 3, and the pressure-resistant layer 4 includes a first supporting layer 41 and a second supporting layer 42, and a plurality of first supporting members 45 and a second supporting member 43 are respectively provided on the first supporting layer 41 and the second supporting layer 42, and a supporting net 44 is provided between the plurality of second supporting members 43 and the second supporting member 43, and the fixing points of the first supporting member 45 and the second supporting member 43 and the supporting net 44 are set to the intersection of the supporting net 44, and the supporting points of the first supporting member 45 and the second supporting member 43 are both the tangent points of the layers, and the pressure-resistant layer 4 supports the insulating layer 3 of the cable, and the first supporting member 45 and the second supporting member 43 are fixed at the intersection of the supporting net 44, so that the first supporting member 45 The pressure on the first and second supports is dispersed on the grid units of the support net 44, and because the fixing points of the first support member 45, the second support member 43 and the support net 44 are at the intersection of the support net 44, the grid units of the support net 44 that bear the force distribution are increased, and the force on the first support member 45 and the second support member 43 is reduced, thereby improving the compressive strength of the first support member 45 and the second support member 43, and further enhancing the support of the entire pressure-resistant layer 4 for the cable, thereby improving the compressive strength of the cable, making it less likely for the cable to be crushed, and extending the service life of the cable, and solving the technical problem of poor extrusion resistance due to the lack of a rigid support structure, causing the cable to be damaged and shortening the service life of the cable. The above is Example 1 of a cable for industrial automation equipment provided in the embodiment of the present application, and the following is Example 2 provided in the embodiment of the present application. Implementation 2 is further described for cables for industrial automation equipment. For details, please refer to Figure 1 and Figure 2 .

[0024] A cable for industrial automation equipment, comprising a copper conductor 1 and an insulating layer 3 wrapping the copper conductor 1; a pressure-resistant layer 4 is arranged on the surface of the insulating layer 3 away from the center of the cable; the pressure-resistant layer 4 comprises a first support layer 41 bonded to the insulating layer 3, a plurality of first support members 45 are arranged on the first support layer 41, a support net 44 is fixed on one end of the plurality of support members away from the pressure-resistant layer 4, a plurality of second support members 43 are arranged on the support net 44, a second support layer 42 is arranged on one end of the plurality of second support members 43 away from the support net 44, the second support layer 42 wraps all the second support members 43, wherein the fixing points of the first support members 45 and the second support members 43 with the support net 44 are the intersection points of the support net 44, and the supporting points of the first support members 45 and the second support members 43 are both the tangent points of their layers.

[0025] It can be understood that the support net 44 is composed of a plurality of transverse grid units and a plurality of vertical grid units that cross each other, and the first support member 45 and the second support member 43 are fixed at the intersection of the same transverse grid unit and the vertical grid unit. For example, the intersections of the plurality of transverse grid units and the plurality of vertical grid units are A, B, C, etc., respectively. Then, one of the first support members 45 and the second support member 43 is fixed at the intersection A, and is symmetrical about the center of the intersection A. The settings of the first support member 45 and the second support member 43 at the intersections B, C, etc. are the same as those at the intersection A, and specific reference is made to the settings of the intersection A.

[0026] Preferably, a third support member 46 is fixed between several of the first support members 45 , one fixing point of the third support member 46 is located at a fixing point between the first support member 45 and the insulating layer 3 , and another fixing point of the third support member 46 is located at a fixing point between an adjacent first support member 45 and the support net 44 .

[0027] It should be noted that the two third support members 46 are located on both sides of the first support member 45 and are symmetrical about the axis of the first support member 45. The third support member 46 forms an internal angle with the first support member 45 and the adjacent first support member 45. The first support member 45 and the third support member 46 use the same fixed point on the insulating layer 3, so that several triangular stable structures are formed between several first support members 45 and third support members 46, further improving the support stability of the pressure-resistant layer 4.

[0028] Preferably, the area of ​​the fixing point between the first support member 45 and the first support layer 41 is larger than the cross-sectional area of ​​the first support member 45 .

[0029] Since the first support member 45 is fixed on the insulating layer 3 of the cable, in order to maintain the stability of the first support member 45 during the supporting process, the area with a larger area is used to act as a stabilizing block to enhance the stability of the first support member 45 .

[0030] Preferably, the first support member 45 is a support rod.

[0031] Preferably, the cross section of the support rod is cross-shaped.

[0032] It should be noted that the cross section of the support rod is set to a cross shape. When the support rod is bent in the direction where the support rod is thicker, the support rod is not easy to bend because the part in this direction is thicker, which further improves the compressive resistance of the support rod. It is understandable that the second support member 43 and the third support member 46 can be set with reference to the first support member 45 to further improve the compressive resistance. The cross section of the first support member 45 can also be set to a polygon. For the setting in a specific cable application, the technicians in this field can also set it according to the needs.

[0033] Preferably, the first support member 45 , the second support member 43 and the third support member 46 are configured as insulators.

[0034] In this embodiment, when the insulating layer 3 of the cable is damaged and the copper conductor 1 of the cable is exposed, in order to prevent the copper conductor 1 of the cable from being short-circuited with the first support member 45, the second support member 43 or the third support member 46, thereby causing a short circuit in the cable and thus catching fire, the first support member 45, the second support member 43 and the third support member 46 are set as insulators to avoid the above situation.

[0035] Preferably, the pressure-resistant layers 4 are arranged at intervals along the axial direction of the copper conductor 1, and a single pressure-resistant layer 4 is in a sealed state.

[0036] It is understandable that the length of the cable is usually a relatively long strip, and it is necessary to cut an appropriate length when using it. During the cutting process, due to the gap inside the pressure-resistant layer 4, the first support member 45, the second support member 43 and the third support member 46 inside are easily exposed to the air with high humidity, which may cause the entire pressure-resistant layer 4 to become damp and deteriorate. By arranging a plurality of pressure-resistant layers 4 at intervals along the axial direction of the copper conductor 1, and a single pressure-resistant layer 4 is in a sealed state, only the pressure-resistant layer 4 at the cutting surface of the cable will be exposed to the air with high humidity, while the other pressure-resistant layers 4 are not easily affected by moisture because they are in a microphone state, thereby providing a certain degree of protection for the pressure-resistant layers 4.

[0037] Preferably, the second supporting layer 42 is configured as a heat conducting layer.

[0038] Preferably, a waterproof layer 2 is attached to the surface of the center of the copper conductor 1 of the heat-conducting layer, and the heat-conducting layer is used to dry the waterproof layer 2.

[0039] In this embodiment, a pressure-resistant layer 4 is provided through the insulating layer 3, and the pressure-resistant layer 4 includes a first supporting layer 41 and a second supporting layer 42, and a plurality of first supporting members 45 and a second supporting member 43 are respectively provided on the first supporting layer 41 and the second supporting layer 42, and a supporting net 44 is provided between the plurality of second supporting members 43 and the second supporting member 43, and the fixing points of the first supporting member 45 and the second supporting member 43 and the supporting net 44 are set to the intersection of the supporting net 44, and the supporting points of the first supporting member 45 and the second supporting member 43 are both the tangent points of the layers, and the pressure-resistant layer 4 supports the insulating layer 3 of the cable, and the first supporting member 45 and the second supporting member 43 are fixed at the intersection of the supporting net 44, so that the first supporting member 45 The pressure exerted on the first support 45 and the second support 43 is dispersed on the grid units of the support net 44, and because the fixing points of the first support member 45, the second support member 43 and the support net 44 are at the intersection of the support net 44, the grid units of the support net 44 that bear the component force are increased, and the force exerted on the first support member 45 and the second support member 43 is reduced, thereby improving the compressive resistance of the first support member 45 and the second support member 43, and further enhancing the support of the entire pressure-resistant layer 4 for the cable, thereby improving the compressive resistance of the cable, making the cable less likely to be crushed, and extending the service life of the cable, and solving the technical problem of poor anti-extrusion ability due to the lack of a rigid support structure, causing damage to the cable and shortening the service life of the cable.

[0040] The above disclosures are only several preferred embodiments of the present invention, which certainly cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the scope of the patent application of the present invention are still within the scope covered by the present invention.

Claims

1. A cable for industrial automation equipment, characterized in that: comprising a copper conductor and an insulating layer wrapping the copper conductor; A pressure-resistant layer is provided on the surface of the insulating layer away from the center of the cable; The pressure-resistant layer includes a first supporting layer bonded to the insulating layer, a plurality of first supporting members are arranged on the first supporting layer, a supporting net is fixed on one end of the plurality of supporting members away from the pressure-resistant layer, a plurality of second supporting members are arranged on the supporting net, a second supporting layer is arranged on one end of the plurality of second supporting members away from the supporting net, and the second supporting layer wraps all the second supporting members, wherein the fixing points of the first supporting members and the second supporting members with the supporting net are the intersection points of the supporting net, and the supporting points of the first supporting members and the second supporting members are both the tangent points of their layers.

2. The cable for industrial automation equipment according to claim 1, characterized in that: A third support member is fixed between the first support members, one fixing point of the third support member is located at a fixing point between the first support member and the insulating layer, and another fixing point of the third support member is located at a fixing point between an adjacent first support member and the support network.

3. The cable for industrial automation equipment according to claim 2, characterized in that: An area of ​​a fixing point between the first support member and the first support layer is larger than a cross-sectional area of ​​the first support member.

4. The cable for industrial automation equipment according to claim 1, characterized in that: The first supporting member is a supporting rod.

5. The cable for industrial automation equipment according to claim 4, characterized in that: The cross section of the support rod is in the shape of a cross.

6. The cable for industrial automation equipment according to claim 1, characterized in that: The first support member is configured as an insulator.

7. The cable for industrial automation equipment according to claim 1, characterized in that: The pressure-resistant layers are arranged at intervals along the axial direction of the copper conductor, and a single pressure-resistant layer is in a sealed state.

8. The cable for industrial automation equipment according to claim 1, characterized in that: The cross section of the first support member is polygonal.

9. The cable for industrial automation equipment according to claim 1, characterized in that: The second supporting layer is configured as a heat conducting layer.

10. The cable for industrial automation equipment according to claim 9, characterized in that: A waterproof layer is attached to the surface of the heat-conducting layer away from the center of the copper conductor, and the heat-conducting layer is used to dry the waterproof layer.

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