A low-deviation flat transposed conductor for use with ultra-high voltage reactors
By protecting the insulation layer of the conductive wire with copper-aluminum composite materials and ceramic materials, the problem of insulation layer damage during winding is solved, and the safety and heat dissipation of low-deviation flat transposed conductors are improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUXI XIZHOU MAGNET WIRES
- Filing Date
- 2025-08-12
- Publication Date
- 2026-07-31
AI Technical Summary
The insulation layer of the transposed wire is easily damaged during the winding process, which leads to increased leakage and electric shock risk, as well as increased energy loss.
The outer shell and base plate are made of copper-aluminum composite material. The design of the heat sink and base plate is combined with locking plates and snap-fit blocks to lock the conductive wires inside the shell. The insulation layer is protected with ceramic materials and high-temperature resistant silicone paint to enhance the insulation performance.
It effectively protects the insulation layer on the surface of the conductive wire, reduces leakage, lowers the risk of electric shock and energy loss, and improves heat dissipation.
Smart Images
Figure CN224582050U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of transposed conductors, and in particular to a low-deviation flat transposed conductor for use in ultra-high voltage reactors. Background Technology
[0002] The use of transposed conductors in the windings of large power transformers can significantly reduce load losses, reduce the temperature rise of winding hot spots, improve the mechanical strength of the windings, make the structure more compact, and simplify coil processing. Therefore, transposed conductors have been widely used in the design and manufacturing of windings of large power transformers since their introduction.
[0003] Transposed conductors require winding during production and processing. This winding method damages the insulation layer. Once the insulation layer is damaged, the insulation performance between the conductor and the outside world decreases, and the insulation resistance value drops significantly. This may lead to leakage, increasing the risk of electric shock and energy loss. Utility Model Content
[0004] The purpose of this utility model is to provide a low-deviation flat transposed conductor for ultra-high voltage reactors in order to solve the above-mentioned problems.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: it includes a shell for heat dissipation, wherein multiple sets of conductive wires are uniformly arrayed inside the shell, spacers are provided between the conductive wires, a base plate is installed at one end of the shell, and the surfaces of the shell and the base plate are sprayed with insulating paint.
[0006] The outer casing includes an U-shaped heat sink, with a first partition plate fixedly disposed inside the heat sink. Multiple sets of locking plates are fixedly disposed at the position of the first partition plate, and a snap-fit block is fixedly disposed at the end of the locking plate and the end of the heat sink. By using the heat sink and the base plate in conjunction, multiple sets of conductive wires are locked inside the outer casing, thereby effectively protecting the surface of the conductive wires and preventing damage to the insulation layer on the surface of the conductive wires. This reduces the occurrence of leakage current, lowers the risk of electric shock, and reduces energy loss.
[0007] Furthermore, heat dissipation grooves are provided on the outer surfaces of the first partition plate and the base plate. These grooves increase the surface area of the first partition plate and the base plate, thereby increasing the heat dissipation area and improving the heat dissipation effect.
[0008] Furthermore, the spacer includes a second partition, and two sets of limiting strips are fixedly provided on one outer wall of the second partition. The limiting strips are provided with limiting grooves for use with locking plates, and the limiting grooves penetrate the second partition.
[0009] Furthermore, the outer shell, spacer, and base plate are all made of copper-aluminum composite material;
[0010] Copper-aluminum composites combine the high thermal conductivity of copper with the low density and low cost of aluminum. Through a specific process, copper and aluminum are bonded together, improving overall thermal conductivity. Compared to pure copper, copper-aluminum composites are less expensive while maintaining good thermal conductivity.
[0011] Furthermore, the outer surface of the base plate is provided with a groove for use with the snap-fit block, which can prevent the snap-fit block from protruding from the outer wall of the base plate.
[0012] Furthermore, the conductive wire includes a copper core, and an insulating layer and a support layer are sequentially disposed on the outer wall of the copper core. The support layer is made of ceramic material, and the insulating layer is an organosilicon high-temperature resistant varnish.
[0013] The ceramic material can be silicon nitride ceramic. Silicon nitride ceramic has excellent properties such as high toughness, strong thermal shock resistance, good insulation, corrosion resistance and non-toxicity. It has low density, high hardness, low coefficient of thermal expansion, good thermal shock resistance and high fracture toughness, making it an ideal high-temperature structural material and high-speed cutting tool ceramic material.
[0014] This high-temperature resistant silicone paint can be used for extended periods in environments ranging from 200℃ to 1200℃, effectively protecting the surface of the coated object. It exhibits excellent corrosion resistance to acids, alkalis, salts, and other chemicals, making it suitable for use in harsh chemical environments. It adheres firmly to various materials such as metals and ceramics, and possesses good flexibility, making it resistant to cracking and peeling.
[0015] Compared with the prior art, the present invention has the following beneficial effects:
[0016] This invention relates to a low-deviation flat transposed conductor for ultra-high voltage reactors. By using a heat sink and a base plate together, multiple sets of conductive wires are locked inside the casing, effectively protecting the surface of the conductive wires and preventing damage to the insulation layer. If the insulation layer is damaged, leakage can be reduced, thus lowering the risk of electric shock and energy loss. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of a low-deviation flat transposed conductor for an ultra-high voltage reactor proposed in this utility model.
[0018] Figure 2 This is a schematic diagram of the base plate for a low-deviation flat transposed conductor used in an ultra-high voltage reactor according to the present invention.
[0019] Figure 3 This is a schematic diagram of the outer casing of a low-deviation flat transposed conductor for an ultra-high voltage reactor proposed in this utility model.
[0020] Figure 4This is a schematic diagram of a spacer for a low-deviation flat transposed conductor used in an ultra-high voltage reactor, as proposed in this utility model.
[0021] Figure 5 This is a schematic diagram of the conductive wire of a low-deviation flat transposed conductor for an ultra-high voltage reactor proposed in this utility model.
[0022] In the diagram: 1. Outer shell; 101. Heat sink; 102. First partition plate; 103. Locking plate; 104. Snap-fit block; 2. Conductive wire; 201. Copper core; 202. Insulation layer; 203. Support layer; 3. Spacer; 301. Second partition plate; 302. Limiting strip; 303. Limiting groove; 4. Base plate. Detailed Implementation
[0023] 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.
[0024] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0025] Reference Figure 1-5 A low-deviation flat transposed conductor for an ultra-high voltage reactor includes a housing 1 for heat dissipation, multiple sets of conductive wires 2 are uniformly arrayed inside the housing 1, spacers 3 are provided between the conductive wires 2, a base plate 4 is installed at one end of the housing 1, and the surfaces of the housing 1 and the base plate 4 are sprayed with insulating paint.
[0026] The outer casing 1 includes a U-shaped heat sink 101. A first partition plate 102 is fixedly disposed inside the heat sink 101. Multiple sets of locking plates 103 are fixedly disposed at the position of the first partition plate 102. A snap-fit block 104 is fixedly disposed at the end of the locking plate 103 and the end of the heat sink 101. By cooperating with the base plate 4, the heat sink 101 locks multiple sets of conductive wires 2 inside the outer casing 1, thereby effectively protecting the surface of the conductive wires 2 and preventing the insulation layer on the surface of the conductive wires 2 from being damaged. This reduces the occurrence of leakage current and lowers the risk of electric shock and energy loss.
[0027] Furthermore, heat dissipation grooves are provided on the outer surfaces of the first partition plate 102 and the base plate 4. The heat dissipation grooves increase the surface area of the first partition plate 102 and the base plate 4, thereby increasing the heat dissipation area and improving the heat dissipation effect.
[0028] Furthermore, the spacer 3 includes a second partition 301. Two sets of limiting strips 302 are fixedly provided on one side of the outer wall of the second partition 301. The limiting strips 302 are provided with limiting grooves 303 for use with locking plate 103. The limiting grooves 303 penetrate the second partition 301.
[0029] Furthermore, the outer shell 1, the spacer 3, and the base plate 4 are all made of copper-aluminum composite material;
[0030] Copper-aluminum composites combine the high thermal conductivity of copper with the low density and low cost of aluminum. Through a specific process, copper and aluminum are bonded together, improving overall thermal conductivity. Compared to pure copper, copper-aluminum composites are less expensive while maintaining good thermal conductivity.
[0031] Furthermore, the outer surface of the base plate 4 is provided with a groove for use with the snap-fit block 104. The groove can prevent the snap-fit block 104 from protruding from the outer wall of the base plate 4.
[0032] Furthermore, the conductive wire 2 includes a copper core 201, and an insulating layer 202 and a support layer 203 are sequentially disposed on the outer wall of the copper core 201. The support layer 203 is made of ceramic material, and the insulating layer 202 is an organosilicon high-temperature resistant varnish.
[0033] The ceramic material can be silicon nitride ceramic. Silicon nitride ceramic has excellent properties such as high toughness, strong thermal shock resistance, good insulation, corrosion resistance and non-toxicity. It has low density, high hardness, low coefficient of thermal expansion, good thermal shock resistance and high fracture toughness, making it an ideal high-temperature structural material and high-speed cutting tool ceramic material.
[0034] This high-temperature resistant silicone paint can be used for extended periods in environments ranging from 200℃ to 1200℃, effectively protecting the surface of the coated object. It exhibits excellent corrosion resistance to acids, alkalis, salts, and other chemicals, making it suitable for use in harsh chemical environments. It adheres firmly to various materials such as metals and ceramics, and possesses good flexibility, making it resistant to cracking and peeling.
[0035] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.
Claims
1. A low-deviation flat transposed conductor for extra-high voltage matching reactors, characterized in that, It includes a housing (1) for heat dissipation, and multiple sets of conductive lines (2) are uniformly arranged inside the housing (1). Spacers (3) are arranged between the conductive lines (2). A base plate (4) is installed at one end of the housing (1). The outer casing (1) includes a U-shaped heat sink (101), and a first partition plate (102) is fixedly disposed inside the heat sink (101). Multiple sets of locking plates (103) are fixedly disposed at the position of the first partition plate (102), and a snap-fit block (104) is fixedly disposed at the end of the locking plate (103) and the end of the heat sink (101).
2. The low-deviation flat transposed conductor for an ultra-high voltage reactor according to claim 1, characterized in that, The outer surfaces of the first spacer plate (102) and the base plate (4) are provided with heat dissipation grooves.
3. The low-deviation flat transposed conductor for a UHV matching reactor according to claim 1, characterized in that, The spacer (3) includes a second partition (301). Two sets of limiting strips (302) are fixedly provided on one side of the outer wall of the second partition (301). The limiting strips (302) are provided with limiting grooves (303) for use with locking plate (103). The limiting grooves (303) penetrate the second partition (301).
4. The low-deviation flat transposed conductor for a UHV matching reactor according to claim 1, characterized in that, The outer shell (1), spacer (3) and base plate (4) are all made of copper-aluminum composite material.
5. The low-deviation flat transposed conductor for a UHV matching reactor according to claim 1, characterized in that, The outer surface of the base plate (4) is provided with a groove for use with the snap-fit block (104).
6. The low-deviation flat transposed conductor for a UHV matching reactor according to claim 1, characterized in that, The conductive wire (2) includes a copper core (201), and an insulating layer (202) and a support layer (203) are sequentially disposed on the outer wall of the copper core (201). The support layer (203) is made of ceramic material, and the insulating layer (202) is an organosilicon high-temperature resistant paint.
7. The low-deviation flat transposed conductor for an ultra-high voltage reactor according to claim 1, characterized in that, The outer shell (1) and the base plate (4) are coated with insulating varnish.