A disc-type insulating component for high-voltage electrical appliances

Abstract

The present invention discloses a disc-type insulating member for high-voltage electrical appliances, including a load-bearing insulating member, a hanging insulating member, an insulating connecting plate and a hanging rod assembly. The load-bearing insulating members are connected in series to form multiple groups of load-bearing insulating member strings connected to high-voltage input lines; three groups of load-bearing insulating member strings are connected around the insulating connecting plate, and a steel sleeve is arranged inside the insulating connecting plate; the hanging rod assembly includes a hanging rod, a triangular hanging plate and a separating ceramic plate, the hanging rod vertically passes through the middle position of the steel sleeve and is fixed thereto, the separating ceramic plate is installed at the bottom end of the hanging rod, and three concave arc-shaped side surfaces are arranged around the separating ceramic plate. The present invention utilizes a disc-type insulating member to form a shunt to isolate the high-voltage cables at the convergence position, and a separating ceramic plate is arranged at the convergence position, which will greatly solve the occurrence of arcs at the convergence position, and the high-voltage cables coming from multiple directions are gathered on an insulating connecting plate, which can effectively solve the tension of the high-voltage cables coming from different directions for internal sales, and reduce the bearing capacity problem of the high-voltage frame.

Description

Technical Field

[0001] The invention relates to the technical field of disc-type insulating parts, and in particular to a disc-type insulating part for high-voltage electrical appliances. Background Art

[0002] In the process of high-voltage power transmission, when encountering residential or industrial electricity, it is necessary to measure the high-voltage electricity. When the high-voltage transmission cable enters the transformer cable pole, it needs to be connected with an insulating part to prevent leakage when entering the high-voltage cable rack, which causes arcing, which is very harmful. Many high-voltage power transmissions use disc insulators, but disc insulators are generally connected to a group of high-voltage lines, and cannot be connected to high-voltage lines coming from multiple directions. For this reason, it is necessary to design a combination of multiple disc insulators to connect high-voltage lines coming from multiple directions, and send them to the same or multiple transformers for transformation for residential and industrial use. However, high-voltage lines coming from multiple directions can easily form arcs at the convergence point and burn. Therefore, how to solve the isolation of the convergence position of high-voltage lines to prevent arcing on the high-voltage rack of the transformer will be a problem that needs to be solved now. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems in the related art to a certain extent. To this end, one purpose of the present invention is to provide a disc-type insulator for high-voltage electrical appliances, which solves the problem that arcs are easily generated when high-voltage lines from multiple directions converge, and the disc-type insulator cannot effectively isolate the mutual interference of high-voltage cables in multiple directions.

[0004] A disc-type insulating member for high-voltage electrical appliances according to the present invention comprises a load-bearing insulating member, a hanging insulating member, an insulating connection disc and a hanging rod assembly, wherein the load-bearing insulating members are connected in series to form a plurality of load-bearing insulating member strings connected to high-voltage input lines;

[0005] The insulating connection disk is connected with three groups of load-bearing insulating parts strings around the circle, a steel sleeve is arranged inside the insulating connection disk, a mounting cavity is arranged inside the steel sleeve, three cavity openings are arranged around the steel sleeve, a first connecting rod is plugged in each cavity opening, a first ceramic is arranged at the cavity opening of the steel sleeve and outside the steel sleeve, one end of the first connecting rod exposes the first ceramic and is connected to one end of the load-bearing insulating parts string;

[0006] The hanging rod assembly includes a hanging rod, a triangular hanging plate and a partitioning ceramic plate. The hanging rod vertically passes through the middle position of the steel sleeve and is fixed thereto. The triangular hanging plate is mounted on the hanging rod and is located below the insulating connecting plate. A connecting rod is provided on the lower surface of the triangular hanging plate. The connecting rod is used to connect the top of the hanging insulating member. The partitioning ceramic plate is installed at the bottom end of the hanging rod. Three concave arc-shaped side surfaces are provided around the partitioning ceramic plate. After a plurality of the hanging insulating members are vertically hung, the lowest end of the hanging insulating member rests against the concave arc-shaped side surface.

[0007] In some embodiments of the present invention, the insulating connection plate may connect two or four load-bearing insulating members 1 in series;

[0008] When the insulating connection disk is connected to two load-bearing insulation strings and the two load-bearing insulation strings are not on the same straight line, three first connecting rods are provided on the insulating connection disk, two of which are connected to the load-bearing insulation strings, and another of which is connected to the high-voltage frame. When the insulating connection disk is connected to two load-bearing insulation strings and the two load-bearing insulation strings are on the same straight line, two first connecting rods are provided on the insulating connection disk;

[0009] When the insulating connection disk is connected to four load-bearing insulating member strings and the four load-bearing insulating member strings are respectively in four directions, four first connecting rods are provided on the insulating connection disk.

[0010] In other embodiments of the present invention, a fixing ring is provided at the top of the hanging rod, and the fixing ring is fixed on the high-voltage frame;

[0011] The hanging rod is sleeved with an insulating second ceramic on a section between the triangular hanging plate and the partitioning ceramic plate.

[0012] In some other embodiments of the present invention, three groups of hanging insulating member strings formed by the hanging insulating members are attached to the second ceramic, and the three groups of hanging insulating member strings do not contact each other.

[0013] In other embodiments of the present invention, the hanging insulating member comprises an iron cap, an umbrella-shaped porcelain cap, a steel foot and a connecting ring, the top of the umbrella-shaped porcelain cap is embedded in the iron cap, and the top of the steel foot passes through the umbrella-shaped porcelain cap and extends into the inner cavity of the iron cap;

[0014] A connecting ring is provided on one side of the iron cap, and the connecting ring is connected to the second ceramic through an insulating connecting piece;

[0015] The lower surface of the umbrella-shaped porcelain cap is provided with a plurality of groups of annular convex plates, and the bottom ends of the annular convex plates are in the same horizontal plane.

[0016] In other embodiments of the present invention, the load-bearing insulating part includes an upper ceramic part and a lower insulating plastic part, the upper surface of the upper ceramic part protrudes outward, the lower surface of the upper ceramic part is a horizontal plane, the lower insulating plastic part is in contact with the lower surface of the upper ceramic part, the lower surface of the lower insulating plastic part protrudes downward, and the lower surface of the lower insulating plastic part is provided with a plurality of annular protrusions.

[0017] In other embodiments of the present invention, the height of the partition ceramic plate is 0.8-1.2 meters, the thickness of the partition ceramic plate is 0.3-0.4 meters, and the diameter of the circle surrounded by three sides of the partition ceramic plate is 0.8-1.2 meters.

[0018] In some other embodiments of the present invention, the concave arc-shaped side surface of the partition ceramic plate is coated with a nano-insulation coating, and the thickness of the coating is 0.6-1.0 cm.

[0019] In other embodiments of the present invention, the spacing between each load-bearing insulating member on the load-bearing insulating member string is 20-25 cm, and the spacing between each hanging insulating member on the hanging insulating member string is 25-30 cm;

[0020] The number of load-bearing insulating members in each of the load-bearing insulating member strings is not less than 5;

[0021] The number of hanging insulating parts in each hanging insulating part string is not less than 8.

[0022] In other embodiments of the present invention, the ceramics of the load-bearing insulating member and the hanging insulating member are coated with a layer of hydrophobic alicyclic epoxy resin film, and the thickness of the hydrophobic alicyclic epoxy resin film is 0.2-0.3 cm.

[0023] In the present invention, when high-voltage cables from multiple locations are converged and transformed, the positive high-voltage lines are independently converged and separated, and a disc-type insulating member is used to form a diversion to isolate the high-voltage cables at the convergence position. A separation ceramic plate is arranged at the convergence position, which will greatly solve the occurrence of arcs at the convergence position. In addition, high-voltage cables from multiple directions are gathered on an insulating connection disk, which can effectively solve the tension of high-voltage cables from different directions and reduce the bearing capacity problem of the high-voltage frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0025] Figure 1 This is a schematic structural diagram of the connection between the load-bearing insulating member and the insulating connecting disk proposed by the present invention.

[0026] Figure 2 This is a schematic structural diagram of the internal cross-section of the insulating connection disk proposed by the present invention.

[0027] Figure 3 This is a schematic structural diagram of the hanging rod assembly proposed by the present invention.

[0028] Figure 4 This is a schematic structural diagram of the three groups of positions of the hanging insulating parts proposed by the present invention.

[0029] Figure 5 This is a schematic structural diagram of the load-bearing insulating member proposed in the present invention.

[0030] Figure 6 This is a schematic cross-sectional view of the load-bearing insulating member proposed by the present invention.

[0031] Figure 7 This is a structural schematic diagram of the cross section of the hanging insulating member proposed in the present invention.

[0032] In the figure: 1, load-bearing insulating part; 11, annular protrusion; 12, upper ceramic part; 13, lower insulating plastic part; 2, insulating connecting plate; 20, first ceramic; 21, first connecting rod; 3, hanging rod; 31, fixing ring; 32, second ceramic; 4, steel sleeve; 5, triangular hanging plate; 6, partition ceramic plate; 61, concave arc side; 7, hanging insulating part; 71, umbrella-shaped ceramic cap; 72, annular protruding plate; 73, connecting ring. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0034] The present invention provides a disc-type insulating member for high-voltage electrical appliances, comprising a load-bearing insulating member 1, a hanging insulating member 7, an insulating connection disc 2 and a hanging rod assembly, wherein the load-bearing insulating members 1 are connected in series to form a plurality of groups of load-bearing insulating members 1 connected to high-voltage input lines;

[0035] The insulating connection plate 2 is connected with three groups of load-bearing insulating parts 1 in series around the insulating connection plate 2. A steel sleeve 4 is provided inside the insulating connection plate 2. A mounting cavity is provided inside the steel sleeve 4. Three cavity openings are provided around the steel sleeve 4. A first connecting rod 21 is plugged in each cavity opening. The cavity openings of the steel sleeve and the outside of the steel sleeve 4 are both provided with first ceramics 20. One end of the first connecting rod 21 is exposed from the first ceramics 20 and is connected to one end of the load-bearing insulating parts 1 in series.

[0036] The hanging rod assembly includes a hanging rod 3, a triangular hanging plate 5 and a partitioning ceramic plate 6. The hanging rod 3 vertically passes through the middle position of the steel sleeve 4 and is fixed thereto. The triangular hanging plate 5 is sleeved on the hanging rod 3 and is located below the insulating connecting plate 2. A connecting rod is provided on the lower surface of the triangular hanging plate 5. The connecting rod is used to connect the top of the hanging insulating member 7. The partitioning ceramic plate 6 is installed at the bottom end of the hanging rod 3. Three concave arc-shaped side surfaces 61 are provided around the partitioning ceramic plate 6. After a plurality of the hanging insulating members 7 are vertically hung, the lowest end of the hanging insulating member 7 rests on the concave arc-shaped side surface 61.

[0037] High-voltage wires in different directions are connected to the load-bearing insulating parts 1 in the corresponding directions, and the high-voltage wires are led downward to the bottom of the corresponding hanging insulating parts 7 to be fixed, and then the high-voltage wires are introduced into the high-voltage electrical appliance for transformation.

[0038] The hanging rod assembly is hung on the high voltage frame, and mainly bears the downward pressure of the insulating connection plate 2, which includes the weight of the cable and the weight of the load-bearing insulating member 1, the hanging insulating member 7, the insulating connection plate 2 and the hanging rod assembly.

[0039] The above design is mainly aimed at the convergence of high-voltage cables in multiple directions. Arcs are prone to occur at the convergence position. It is difficult to isolate multiple high-voltage cables and effectively separate the cables. This problem can be solved by using a set of disc-type insulating discs. The above is to independently shunt and converge the positive high-voltage cables, and the neutral line will be carried out in other ways. Generally, the neutral line will not produce arcs.

[0040] The insulating connection plate 2 can connect two or four load-bearing insulating parts 1 in series;

[0041] When the insulating connection disk 2 is connected to two load-bearing insulating member strings and the two load-bearing insulating member strings are not on the same straight line, three first connecting rods 21 are provided on the insulating connection disk 2, two of which are connected to a load-bearing insulating member string, and another of which is connected to the high-voltage frame. When the insulating connection disk 2 is connected to two load-bearing insulating member strings and the two load-bearing insulating member strings are on the same straight line, two first connecting rods 21 are provided on the insulating connection disk 2;

[0042] When the insulating connection disk 2 is connected to four load-bearing insulating member strings and the four load-bearing insulating member strings 1 are respectively in four directions, four first connecting rods 21 are provided on the insulating connection disk 2 .

[0043] The present invention can use a set of disc-type insulating parts to gather high-voltage cables from cables coming from four directions, and is very suitable for residential areas, especially rural areas, where overhead cables are used to reach villages for voltage transformation.

[0044] A fixing ring 31 is provided at the top of the hanging rod 3, and the fixing ring 31 is fixed on the high-voltage frame;

[0045] The hanging rod 3 is sleeved with an insulating second ceramic 32 on a section between the triangular hanging plate 5 and the partition ceramic plate 6 .

[0046] The hanging insulating member and the hanging rod 3 are solved. The hanging rod is made of metal, and the surface needs to be coated with ceramic or other insulating layers to easily isolate multiple groups of hanging insulating members 7 from affecting each other.

[0047] The three groups of hanging insulating members 7 formed by the hanging insulating members 7 are attached to the second ceramic 32, and the three groups of hanging insulating members 7 are not in contact with each other.

[0048] The hanging insulating member 7 comprises an iron cap, an umbrella-shaped porcelain cap 71, a steel foot and a connecting ring 73. The top of the umbrella-shaped porcelain cap 71 is embedded in the iron cap, and the top of the steel foot passes through the umbrella-shaped porcelain cap 71 and extends into the inner cavity of the iron cap.

[0049] A connecting ring 73 is provided on one side of the iron cap, and the connecting ring 73 is connected to the second ceramic 32 through an insulating connecting piece;

[0050] The lower surface of the umbrella-shaped porcelain cap 71 is provided with a plurality of groups of annular convex plates 72 , and the bottom ends of the annular convex plates 72 are in the same horizontal plane.

[0051] The hanging insulating member 7 is the same as the conventional one, except that a connecting ring 73 is designed to stabilize the hanging insulating member 7 and prevent it from swinging. Since the three groups are relatively close, the impact caused by shaking is reduced.

[0052] The load-bearing insulating part 1 includes an upper ceramic part 12 and a lower insulating plastic part 13. The upper surface of the upper ceramic part 12 protrudes outward, and the lower surface of the upper ceramic part 12 is a horizontal plane. The lower insulating plastic part 13 is in contact with the lower surface of the upper ceramic part 12, and the lower surface of the lower insulating plastic part 13 protrudes downward. The lower surface of the lower insulating plastic part 13 is provided with a plurality of annular protrusions 11.

[0053] The lower insulating plastic part 13 is facing the side of the high-voltage cable, and will be inclined downward, and arc surface is also easy to be generated. The multiple annular protrusions 11 on the lower surface of the lower insulating plastic part 13 can reduce the occurrence of arc. The other structures are similar to the traditional principles.

[0054] The height of the partition ceramic plate 6 is 0.8-1.2 meters, the thickness of the partition ceramic plate 6 is 0.3-0.4 meters, and the diameter of the circle surrounded by the three sides of the partition ceramic plate 6 is 0.8-1.2 meters.

[0055] To ensure that the separation ceramic plate 6 is effectively insulated at the bottom end of the hanging insulating member, the separation ceramic plate 6 should be at a height that prevents the cable from extending to the bottom end.

[0056] The concave arc side of the partition ceramic plate 6 is coated with a nano insulating coating, the thickness of which is 0.6-1.0 cm. The nano insulating coating improves the surface finish, prevents dust from sticking, and further improves the insulation effect.

[0057] The spacing between each load-bearing insulating member 1 on the said load-bearing insulating member 1 string is 20-25 cm, and the spacing between each hanging insulating member 7 on the said hanging insulating member 7 string is 25-30 cm;

[0058] The number of load-bearing insulating members in each string of load-bearing insulating members is not less than 5;

[0059] The number of the hanging insulating parts 7 in each string of hanging insulating parts 7 is not less than 8.

[0060] The number of load-bearing insulating parts 1 and hanging insulating parts 7 is designed according to the actual voltage level to ensure effective prevention of arc occurrence.

[0061] The ceramics of the load-bearing insulating member 1 and the hanging insulating member 7 are coated with a layer of hydrophobic alicyclic epoxy resin film, and the thickness of the hydrophobic alicyclic epoxy resin film is 0.2-0.3 cm, which can reduce the dust adhesion and accumulation of charged particles on the surface and improve the insulation effect.

[0062] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A disc-type insulating member for high-voltage electrical appliances, characterized in that: It comprises a load-bearing insulating member (1), a hanging insulating member (7), an insulating connection plate (2) and a hanging rod assembly, wherein the load-bearing insulating members (1) are connected in series to form a plurality of groups of load-bearing insulating member (1) strings connected to high-voltage input lines; The insulating connection disk (2) is connected to three groups of load-bearing insulating components (1) in series around the insulating connection disk (2), a steel sleeve (4) is provided inside the steel sleeve (4), a mounting cavity is provided inside the steel sleeve (4), three cavity openings are provided around the steel sleeve (4), a first connecting rod (21) is plugged in each cavity opening, a first ceramic (20) is provided at the cavity opening of the steel sleeve and outside the steel sleeve (4), one end of the first connecting rod (21) is exposed from the first ceramic (20) and is connected to one end of the load-bearing insulating component (1) string; The hanging rod assembly comprises a hanging rod (3), a triangular hanging plate (5) and a partitioning ceramic plate (6); the hanging rod (3) vertically penetrates the middle position of the steel sleeve (4) and is fixed thereto; the triangular hanging plate (5) is sleeved on the hanging rod (3) and is located below the insulating connecting plate (2); a connecting rod is provided on the lower surface of the triangular hanging plate (5); the connecting rod is used to connect the top of the hanging insulating member (7); the partitioning ceramic plate (6) is installed at the bottom end of the hanging rod (3); three concave arc-shaped side surfaces (61) are provided around the partitioning ceramic plate (6); after the plurality of hanging insulating members (7) are vertically hung, the lowest end of the hanging insulating member (7) abuts against the concave arc-shaped side surface (61); A fixing ring (31) is provided at the top end of the hanging rod (3), and the fixing ring (31) is fixed on the high-voltage frame; The hanging rod (3) is sleeved with an insulating second ceramic (32) on a section between the triangular hanging plate (5) and the partitioning ceramic plate (6); The three groups of hanging insulating members (7) formed by the hanging insulating members (7) are attached to the second ceramic (32), and the three groups of hanging insulating members (7) are not in contact with each other; High-voltage electric wires in different directions are connected in series with load-bearing insulating members (1) in corresponding directions, and the high-voltage electric wires are led downward to the bottom end of the corresponding hanging insulating member (7) string for fixation, and then the high-voltage electric wires are introduced into the high-voltage electrical appliance for voltage transformation.

2. A disc-type insulating member for high-voltage electrical appliances according to claim 1, characterized in that: The hanging insulating member (7) comprises an iron cap, an umbrella-shaped porcelain cap (71), a steel foot and a connecting ring (73); the top of the umbrella-shaped porcelain cap (71) is embedded in the iron cap, and the top of the steel foot passes through the umbrella-shaped porcelain cap (71) and extends into the inner cavity of the iron cap; A connecting ring (73) is provided on one side of the iron cap, and the connecting ring (73) is connected to the second ceramic (32) via an insulating connecting piece; The lower surface of the umbrella-shaped porcelain cap (71) is provided with a plurality of groups of annular convex plates (72), and the bottom ends of the annular convex plates (72) are located in the same horizontal plane.

3. The disc-type insulating member for high-voltage electrical appliances according to claim 1, characterized in that: The load-bearing insulating member (1) comprises an upper ceramic part (12) and a lower insulating plastic part (13); the upper surface of the upper ceramic part (12) protrudes outwards, the lower surface of the upper ceramic part (12) is a horizontal plane, the lower insulating plastic part (13) is in contact with the lower surface of the upper ceramic part (12), the lower surface of the lower insulating plastic part (13) protrudes downwards, and the lower surface of the lower insulating plastic part (13) is provided with a plurality of annular protrusions (11).

4. The disc-type insulating member for high-voltage electrical appliances according to claim 1, characterized in that: The height of the partition ceramic plate (6) is 0.8-1.2 meters, the thickness of the partition ceramic plate (6) is 0.3-0.4 meters, and the diameter of the circle surrounded by three sides of the partition ceramic plate (6) is 0.8-1.2 meters.

5. A disc-type insulating member for high-voltage electrical appliances according to claim 4, characterized in that: The concave arc-shaped side surface of the partition ceramic plate (6) is coated with a nano insulating coating, and the thickness of the coating is 0.6-1.0 cm.

6. The disc-type insulating member for high-voltage electrical appliances according to claim 1, characterized in that: The spacing between each load-bearing insulating member (1) on the load-bearing insulating member (1) string is 20-25 cm, and the spacing between each hanging insulating member (7) on the hanging insulating member (7) string is 25-30 cm; The number of load-bearing insulating members (1) in each string of load-bearing insulating members (1) is not less than 5; The number of hanging insulating parts (7) in each string of hanging insulating parts (7) is not less than 8.

7. The disc-type insulating member for high-voltage electrical appliances according to claim 1, characterized in that: The ceramics of the load-bearing insulating member (1) and the hanging insulating member (7) are coated with a layer of hydrophobic alicyclic epoxy resin film, and the thickness of the hydrophobic alicyclic epoxy resin film is 0.2-0.3 cm.

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