Multi-series winding structure of dry-type transformer

Abstract

The utility model provides a multi-series winding structure of a dry-type transformer, and belongs to the technical field of transformer windings. The multi-series winding structure of the dry-type transformer comprises a first connecting plate, a second connecting plate and winding bodies, the winding bodies are installed in the first connecting plate and the second connecting plate respectively, and butt joint assemblies are arranged on the outer wall of the first connecting plate and the outer wall of the second connecting plate respectively. The butt-joint assembly comprises butt-joint grooves, butt-joint blocks, first penetrating holes and second penetrating holes, the butt-joint blocks are arranged on one side of the first connecting plate and one side of the second connecting plate respectively, the butt-joint grooves clamped with the butt-joint blocks are formed in the other side of the first connecting plate and the other side of the second connecting plate respectively, and the second penetrating holes are formed in the two sides of the butt-joint grooves respectively. A first through hole is formed in one side of the butt joint block, and fixing assemblies are arranged in the first through hole and the second through hole.

Description

Technical Field

[0001] The utility model relates to the technical field of transformer windings, and more specifically, to a structure of multiple series-connected windings of a dry-type transformer. Background Art

[0002] A transformer winding refers to the circuit part of a transformer, which is wound with copper wires or aluminum wires with high electrical conductivity and is applied to the power system. The winding should have sufficient insulation strength, mechanical strength and heat resistance. Windings are usually divided into two types: layer type and pancake type. When the turns of the winding are arranged continuously along its axial direction, it is called a layer type winding. Generally, each layer of the layer type winding is in a cylindrical shape, so a winding composed of two layers is called a double-layer cylindrical type; a winding composed of multiple layers is called a multi-layer cylindrical type. After retrieval, a winding structure of a dry-type transformer is disclosed in a Chinese patent with the authorized announcement number CN213781791U, which includes an iron core. A first winding is arranged outside the iron core, a second winding is arranged outside the first winding, and an insulation protection layer is jointly arranged between the second winding and the first winding. A plurality of heat dissipation air channels are evenly opened on the inner side of the insulation protection layer. In the utility model, by arranging a heat-conducting silica gel pad on the outer side wall of the second winding, while ensuring enhanced insulation, the heat on the second winding can be evenly conducted to the heat-conducting inner clamping plate. At the same time, the heat-conducting rods in the heat dissipation air channels of the insulation protection layer also conduct the heat between the second winding and the first winding to the heat-conducting inner clamping plate through the second heat dissipation fins. The first heat dissipation fins are in full contact with the outside air, which facilitates the heat on the heat-conducting inner clamping plate to be taken away by the air. In addition, due to the fixation between the two side fixing frames, the two heat-conducting inner clamping plates complete the protection of the inner winding.

[0003] However, in the actual use process of this solution, due to the lack of facilities for mutual docking, each winding structure can only be used alone, and it is impossible to change the electrical variable or magnetic variable according to the electricity consumption demand, resulting in limitations in use.

[0004] Therefore, we make improvements on this and propose a structure of multiple series-connected windings of a dry-type transformer. Summary of the Utility Model

[0005] In order to solve the problem that the existing winding structures cannot be used in combination to change electrical variables or magnetic variables, the utility model provides a structure of multiple series-connected windings of a dry-type transformer.

[0006] The utility model is implemented as follows:

[0007] A series-connected winding structure of a dry-type transformer, including a first connecting plate, a second connecting plate and a winding body. The winding bodies are respectively installed inside the first connecting plate and the second connecting plate. Docking components are respectively provided on the outer walls of the first connecting plate and the second connecting plate. The docking components include docking grooves, docking blocks, first through-holes and second through-holes. Docking blocks are respectively arranged on one side of the first connecting plate and the second connecting plate. Docking grooves that are mutually engaged with the docking blocks are respectively arranged on the other side of the first connecting plate and the second connecting plate. Second through-holes are respectively arranged on both sides of the docking groove. A first through-hole is arranged on one side of the docking block. A fixing component is arranged inside the first through-hole and the second through-hole.

[0008] Further, the winding body includes a central shaft, an insulating sleeve, a plurality of winding rods, a anti-disengagement plate and electromagnetic wires. The insulating sleeve is sleeved on the outer wall of the central shaft. A plurality of the winding rods are connected to the outer wall of the insulating sleeve. One ends of the plurality of winding rods are respectively connected to the anti-disengagement plate.

[0009] The beneficial effect of adopting the above further scheme is that through the connection and use of the winding rods, it provides a position space for the winding of the electromagnetic wires. Then, through the connection and use of the anti-disengagement plate, the situation that the wound electromagnetic wires are disengaged is avoided.

[0010] Further, the electromagnetic wires are respectively wound and connected to the outer walls of the plurality of winding rods. The outer wall of the electromagnetic wire is in contact with the inner wall of the anti-disengagement plate.

[0011] The beneficial effect of adopting the above further scheme is that through the winding connection of the electromagnetic wires, it forms the energized coil of this winding structure.

[0012] Further, the fixing component includes a limit pile, a top cap and a bottom support. The two ends of the limit pile are respectively threadedly connected to one side of the top cap and the bottom support.

[0013] The beneficial effect of adopting the above further scheme is that through the connection and use of the top cap and the bottom support, it is convenient to fix the limit pile on the docking component.

[0014] Further, the limit pile is inserted and connected inside the first through-hole and the second through-hole. One sides of the top cap and the bottom support are respectively in contact with the outer walls of the first connecting plate and the second connecting plate.

[0015] The beneficial effect of adopting the above further scheme is that through the arrangement of the first through-hole and the second through-hole, it provides a space for the insertion of the limit pile. Then, through the positions of the top cap and the bottom support, it is convenient to fix the docking groove and the docking block.

[0016] Further, a pair of arc-shaped hollow grooves and vertical hollow grooves are respectively provided on the outer walls of the first connecting plate and the second connecting plate.

[0017] The beneficial effect of adopting the above further solution is that through the arrangement of the arc-shaped hollow grooves and the vertical hollow grooves, it is convenient to provide a heat dissipation channel for the winding structure.

[0018] Further, a pair of the arc-shaped hollow grooves are respectively located on the vertical planes of the winding body, and the vertical hollow groove is located between the pair of arc-shaped hollow grooves.

[0019] The beneficial effect of adopting the above further solution is that through the position distribution between the arc-shaped hollow grooves and the vertical hollow grooves, it is convenient to improve the heat dissipation efficiency.

[0020] Further, supporting feet are respectively provided at the bottom ends of the first connecting plate and the second connecting plate. The supporting feet include a first arc-shaped plate, a second arc-shaped plate, a gasket and a plurality of clamping piles. The top ends of the first arc-shaped plate and the second arc-shaped plate are respectively connected to a plurality of the clamping piles, and holes for mutually clamping with the clamping piles are respectively arranged at the bottom ends of the first connecting plate and the second connecting plate.

[0021] The beneficial effect of adopting the above further solution is that through the arrangement of the holes, it provides a position space for the insertion of the clamping piles, thereby facilitating the docking of the supporting feet with the first connecting plate and the second connecting plate.

[0022] Further, a gasket is adhesively bonded to the bottom ends of the first arc-shaped plate and the second arc-shaped plate.

[0023] The beneficial effect of adopting the above further solution is that through the connection and use of the gasket, it is convenient to reduce the wear at the bottom ends of the first arc-shaped plate and the second arc-shaped plate.

[0024] The beneficial effect of the present utility model is that through the combined use of the docking component and the fixing component, the winding structure can be connected in series multiple times, thereby facilitating the change of electrical variables or magnetic variables. Among them, by extending the docking block into the docking groove, the first connecting plate and the second connecting plate are docked. Then, through the arrangement of the first through hole and the second through hole, it provides a position space for the insertion of the fixing component. Through sequential position docking, it is convenient to dock multiple winding structures, thereby facilitating the adjustment of electrical variables or magnetic variables. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for the embodiments. It should be understood that the following drawings only show some embodiments of the present utility model, and thus should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0026] Figure 1 It is a three-dimensional schematic diagram of a series-connected winding structure of a dry-type transformer provided by the present utility model;

[0027] Figure 2 Schematic diagram of the assembly structure of multiple series-connected winding structures of a dry-type transformer provided by the present utility model;

[0028] Figure 3 Cross-sectional view of the winding body of multiple series-connected winding structures of a dry-type transformer provided by the present utility model;

[0029] Figure 4 Expanded schematic diagram of the fixing component of multiple series-connected winding structures of a dry-type transformer provided by the present utility model;

[0030] Figure 5 Schematic diagram of the support foot plate of multiple series-connected winding structures of a dry-type transformer provided by the present utility model.

[0031] In the figure: 100, the first connecting plate; 200, the second connecting plate; 300, the winding body; 3001, the central axis; 3002, the insulating sleeve; 3003, the winding rod; 3004, the anti-disengagement plate; 3005, the electromagnetic wire; 400, the fixing component; 4001, the limiting pile; 4002, the top cap; 4003, the bottom support; 500, the arc-shaped hollow groove; 600, the vertical hollow groove; 700, the support foot plate; 7001, the first arc-shaped plate; 7002, the second arc-shaped plate; 7003, the gasket; 7004, the clamping pile; 101, the docking groove; 102, the docking block; 103, the first through hole; 104, the second through hole. Detailed implementation manners

[0032] To make the purpose, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.

[0033] Therefore, the following detailed description of the embodiments of the present utility model provided in the drawings is not intended to limit the scope of the present utility model to be protected, but merely represents the selected embodiments of the present utility model. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.

[0034] Embodiment 1

[0035] Please refer to Figures 1-5, the present utility model provides a technical solution: a multi-series winding structure of a dry-type transformer, including a first connecting plate 100, a second connecting plate 200 and a winding body 300. The winding body 300 is respectively installed inside the first connecting plate 100 and the second connecting plate 200. Docking components are respectively provided on the outer walls of the first connecting plate 100 and the second connecting plate 200. The docking components include a docking groove 101, a docking block 102, a first through hole 103 and a second through hole 104. Docking blocks 102 are respectively arranged on one side of the first connecting plate 100 and the second connecting plate 200. Docking grooves 101 that are mutually engaged with the docking blocks 102 are respectively arranged on the other side of the first connecting plate 100 and the second connecting plate 200. Second through holes 104 are respectively arranged on both sides of the docking groove 101. A first through hole 103 is arranged on one side of the docking block 102. A fixing component 400 is arranged inside the first through hole 103 and the second through hole 104. By extending the docking block 102 into the docking groove 101, the first connecting plate 100 and the second connecting plate 200 are docked. Then, through the arrangement of the first through hole 103 and the second through hole 104, a position space is provided for the insertion of the fixing component 400. Through sequential position docking, it is convenient to dock multiple winding structures, thereby facilitating the adjustment of electrical variables or magnetic variables.

[0036] Embodiment 2

[0037] Please refer to Figures 1-5, as an embodiment of the present utility model, further, the winding body 300 includes a central shaft 3001, an insulating sleeve 3002, a plurality of winding rods 3003, a anti - detachment plate 3004 and an electromagnetic wire 3005. The outer wall of the central shaft 3001 is sleeved with the insulating sleeve 3002. The outer wall of the insulating sleeve 3002 is connected with a plurality of winding rods 3003. One ends of the plurality of winding rods 3003 are respectively connected with the anti - detachment plate 3004. Through the connection of the winding rods 3003, a position space is provided for the winding of the electromagnetic wire 3005. Then, through the connection of the anti - detachment plate 3004, the situation that the wound electromagnetic wire 3005 is detached is avoided. The outer walls of the plurality of winding rods 3003 are respectively wound and connected with the electromagnetic wire 3005. The outer wall of the electromagnetic wire 3005 is in contact with the inner wall of the anti - detachment plate 3004. Through the winding connection of the electromagnetic wire 3005, an energized coil of the winding structure is formed. The fixing component 400 includes a limit pile 4001, a top cap 4002 and a bottom support 4003. The two ends of the limit pile 4001 are respectively threadedly connected with one side of the top cap 4002 and the bottom support 4003. Through the connection of the top cap 4002 and the bottom support 4003, it is convenient to fix the limit pile 4001 on the docking component. The limit pile 4001 is inserted into the first through - hole 103 and the second through - hole 104. One sides of the top cap 4002 and the bottom support 4003 are respectively in contact with the outer walls of the first connecting plate 100 and the second connecting plate 200. Through the setting of the first through - hole 103 and the second through - hole 104, a space is provided for the insertion of the limit pile 4001. Then, through the positions of the top cap 4002 and the bottom support 4003, it is convenient to fix the docking groove 101 and the docking block 102.

[0038] Embodiment III

[0039] Please refer to Figures 1-5, as an embodiment of the present utility model, further, a pair of arc-shaped hollow grooves 500 and vertical hollow grooves 600 are respectively provided on the outer walls of the first connecting plate 100 and the second connecting plate 200. Through the arrangement of the arc-shaped hollow grooves 500 and the vertical hollow grooves 600, it is convenient to provide a heat dissipation channel for the winding structure. A pair of arc-shaped hollow grooves 500 are respectively located on the vertical planes of the winding body 300, and the vertical hollow grooves 600 are located between the pair of arc-shaped hollow grooves 500. Through the position distribution between the arc-shaped hollow grooves 500 and the vertical hollow grooves 600, it is convenient to improve the heat dissipation efficiency. Support feet 700 are respectively provided at the bottoms of the first connecting plate 100 and the second connecting plate 200. The support feet 700 include a first arc-shaped plate 7001, a second arc-shaped plate 7002, a gasket 7003 and a plurality of clamping piles 7004. A plurality of clamping piles 7004 are respectively connected to the tops of the first arc-shaped plate 7001 and the second arc-shaped plate 7002. Through holes for engaging with the clamping piles 7004 are respectively provided at the bottoms of the first connecting plate 100 and the second connecting plate 200. Through the arrangement of the through holes, it provides a position space for the insertion of the clamping piles 7004, thereby facilitating the docking of the support feet 700 with the first connecting plate 100 and the second connecting plate 200. The bottoms of the first arc-shaped plate 7001 and the second arc-shaped plate 7002 are bonded with the gasket 7003. Through the connection and use of the gasket 7003, it is convenient to reduce the wear at the bottoms of the first arc-shaped plate 7001 and the second arc-shaped plate 7002.

[0040] Specifically, the working principle of the multiple series-connected winding structures of the dry-type transformer: During use, first, check whether the winding structure is intact. After ensuring the integrity of the structure, then put it into use. Among them, by extending the docking block 102 into the docking groove 101, the first connecting plate 100 and the second connecting plate 200 are docked. Then, through the arrangement of the first through hole 103 and the second through hole 104, it provides a position space for the insertion of the fixing component 400. And through the connection and use of the top cap 4002 and the bottom support 4003, it is convenient to fix the limiting pile 4001 on the docking component. At the same time, through the arrangement of the first through hole 103 and the second through hole 104, it provides a space for the insertion of the limiting pile 4001. Then, through the positions of the top cap 4002 and the bottom support 4003 respectively, it is convenient to fix the docking groove 101 and the docking block 102. Then, through the connection and use of the winding rod 3003, it provides a position space for the winding of the electromagnetic wire 3005. And through the connection and use of the anti-disengagement plate 3004, it avoids the situation that the wound electromagnetic wire 3005 comes off. Then, through the arrangement of the arc-shaped hollow grooves 500 and the vertical hollow grooves 600, it is convenient to provide a heat dissipation channel for the winding structure. At the same time, through the position distribution between the arc-shaped hollow grooves 500 and the vertical hollow grooves 600, it is convenient to improve the heat dissipation efficiency.

[0041] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. For those skilled in the art, the present utility model can have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A plurality of series-connected winding structures of a dry-type transformer, comprising a first connecting plate (100), a second connecting plate (200) and a winding body (300), characterized in that: The winding body (300) is installed inside the first connecting plate (100) and the second connecting plate (200), respectively; the outer walls of the first connecting plate (100) and the second connecting plate (200) are respectively provided with docking components, the docking components comprising a docking groove (101), a docking block (102), a first through hole (103) and a second through hole (104); the docking block (102) is respectively provided on one side of the first connecting plate (100) and the second connecting plate (200); the docking groove (101) that is mutually engaged with the docking block (102) is respectively provided on the other side of the first connecting plate (100) and the second connecting plate (200); the second through holes (104) are respectively provided on both sides of the docking groove (101); the first through hole (103) is provided on one side of the docking block (102); and fixing components (400) are provided inside the first through hole (103) and the second through hole (104).

2. The multiple series winding structure of the dry-type transformer according to claim 1, characterized in that: The winding body (300) comprises a central axis (3001), an insulating sleeve (3002), a plurality of winding rods (3003), an anti-slip plate (3004) and an electromagnetic wire (3005); the outer wall of the central axis (3001) is sleeved with the insulating sleeve (3002); the outer wall of the insulating sleeve (3002) is connected to the plurality of winding rods (3003); and one end of the plurality of winding rods (3003) is respectively connected to the anti-slip plate (3004).

3. The multiple series winding structure of the dry-type transformer according to claim 2, characterized in that: The outer walls of the plurality of winding rods (3003) are respectively wound with connected electromagnetic wires (3005), and the outer walls of the electromagnetic wires (3005) are in contact with the inner walls of the anti-slip plates (3004).

4. The multiple series winding structure of the dry-type transformer according to claim 1, characterized in that: The fixing assembly (400) comprises a limiting pile (4001), a top cap (4002) and a bottom bracket (4003), and two ends of the limiting pile (4001) are respectively threadedly connected to one side of the top cap (4002) and the bottom bracket (4003).

5. The multiple series winding structure of the dry-type transformer according to claim 4, characterized in that: The limiting pile (4001) is inserted and connected inside the first through hole (103) and the second through hole (104), and one side of the top cap (4002) and the bottom bracket (4003) are respectively fitted with the outer wall of the first connecting plate (100) and the second connecting plate (200).

6. The multiple series winding structure of the dry-type transformer according to claim 1, characterized in that: The outer walls of the first connecting plate (100) and the second connecting plate (200) are respectively provided with a pair of arc-shaped hollow grooves (500) and a vertical hollow groove (600).

7. The multiple series winding structure of the dry-type transformer according to claim 6, characterized in that: The pair of arc-shaped hollow grooves (500) are respectively located on the vertical surfaces of the winding body (300), and the vertical hollow groove (600) is located between the pair of arc-shaped hollow grooves (500).

8. The multiple series winding structure of the dry-type transformer according to claim 1, characterized in that: The bottom ends of the first connecting plate (100) and the second connecting plate (200) are respectively provided with supporting foot plates (700), and the supporting foot plates (700) include a first arc-shaped plate (7001), a second arc-shaped plate (7002), a gasket (7003) and a plurality of clamping piles (7004); the top ends of the first arc-shaped plate (7001) and the second arc-shaped plate (7002) are respectively connected to a plurality of the clamping piles (7004), and the bottom ends of the first connecting plate (100) and the second connecting plate (200) are respectively provided with holes that engage with the clamping piles (7004).

9. The multiple series winding structure of the dry-type transformer according to claim 8, characterized in that: The bottom ends of the first curved plate (7001) and the second curved plate (7002) are bonded with gaskets (7003).

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