Three-switch wiring structure

Abstract

The utility model relates to a three-switch wiring structure. The three-switch wiring structure belongs to the technical field of wiring structures. The three-switch wiring structure comprises a branching wire, an isolator is arranged on the branching wire, and the isolator comprises a magnetic block, an inner insulating ring, an insulating filling block and an outer insulating ring. The outgoing positions of the lead wires of the coils face the corresponding switches as far as possible, so that most of the tapping wires are accessed to the switches nearby, and a small part of the tapping wires far away from the corresponding switches are led to the corresponding switch positions from the lower parts of the switches and the exteriors of the coils under the condition that the insulation distance is ensured, so that the insulation distance between the lead wires is ensured; and wiring is facilitated.

Description

Technical Field

[0001] The utility model belongs to the technical field of wiring structures, and particularly relates to a three-switch wiring structure. Background Art

[0002] In order to input different voltages, the input winding can also use multiple windings to adapt to different input voltages. At the same time, multiple windings can also be used to output different voltages. Three independent windings are connected to a three-phase AC power supply through different connection methods (such as star and delta), and the output is also the same. This is a three-phase transformer.

[0003] The transformer oil in the oil tank of the three-phase transformer is used for heat dissipation and insulation to prevent the leads from contacting each other. When the transformer needs to meet specific requirements, three three-phase switches are required for one three-phase transformer. At this time, the placement position of the three switches is particularly crucial. It is necessary to ensure the insulation distance between the leads so that the three-phase tap wire can be smoothly connected to the switch, and at the same time, make full use of the internal space of the oil tank to avoid unnecessary space waste. The three three-phase switches are usually arranged on the same side of the oil tank, but it is difficult to maintain the insulation distance between the leads when the three three-phase switches are arranged on the same side of the oil tank, and it is not convenient for wiring.

[0004] Therefore, a three-switch wiring structure is proposed to solve the above problems. Content of the Utility Model

[0005] The purpose of the utility model is to provide a three-switch wiring structure with simple structure and reasonable design to solve the above problems.

[0006] The utility model realizes the above purpose through the following technical solutions:

[0007] A three-switch wiring structure includes a tap wire, and an isolator is arranged on the tap wire. The isolator includes magnetic blocks, inner insulating rings, insulating filling blocks, and outer insulating rings. Multiple groups of magnetic blocks and multiple groups of insulating filling blocks are distributed at intervals, and adjacent magnetic blocks and insulating filling blocks are fixedly connected. Multiple groups of inner insulating rings and multiple groups of insulating filling blocks form a ring structure. The inner insulating rings are fixedly arranged at the inner ring of the ring structure, and the outer insulating rings are fixedly coated on the outer ring of the ring structure. The poles of the surfaces of multiple groups of magnetic blocks away from the inner insulating rings are the same, and the inner insulating rings are movably sleeved on the outer circle of the tap wire.

[0008] As a further optimized scheme of the utility model, the inner insulating rings are in a compressed state and are pressed between the inner ring of the ring structure and the outer circle of the tap wire.

[0009] As a further optimized scheme of the utility model, the included angle between multiple groups of magnetic blocks is below 20°.

[0010] As a further optimization solution of the present utility model, the tap wire is arranged in the fuel tank. The tap wire includes a first phase A tap wire, a first phase B tap wire, a first phase C tap wire, a second phase A tap wire, a second phase B tap wire, a second phase C tap wire, a third phase A tap wire, a third phase B tap wire, and a third phase C tap wire.

[0011] As a further optimization solution of the present utility model, a first three-phase switch, a second three-phase switch, a third three-phase switch, an iron core, and a coil are provided on the fuel tank. The coil is wound around the iron core. The first three-phase switch, the second three-phase switch, and the third three-phase switch are sequentially arranged on the same side of the body of the fuel tank. There are three groups of coils, and the first three-phase switch, the second three-phase switch, the third three-phase switch, and the three groups of coils are placed in parallel and staggered.

[0012] As a further optimization solution of the present utility model, the three groups of coils are sequentially distributed into phase A, phase B, and phase C, and phase A, phase B, and phase C are respectively close to the first three-phase switch, the second three-phase switch, and the third three-phase switch.

[0013] As a further optimization solution of the present utility model, the first phase A tap wire and the first phase B tap wire are connected to the first three-phase switch nearby. The first phase C tap wire is led down to a height below the second three-phase switch and passes through the lower part of the second three-phase switch, and then is led up to be connected to the first three-phase switch. The second phase B tap wire and the second phase C tap wire are connected to the second three-phase switch nearby. The second phase A tap wire is led down to a height below the first three-phase switch and passes through the lower part of the first three-phase switch, and then is led up to be connected to the second three-phase switch. The third phase C tap wire is connected to the third three-phase switch nearby. The third phase A tap wire and the third phase B tap wire are wound around the outside of the coil and are connected to the third three-phase switch 3 from one side of the fuel tank.

[0014] The beneficial effect of the present utility model lies in that: the three three-phase switches of the present utility model are arranged on the same side of the fuel tank and are placed in parallel and staggered with the three-phase coils. The lead-out positions of the coil leads are arranged as close as possible to the corresponding switches. In this way, most of the tap wires can be connected to the switches nearby. For a small number of tap wires that are far from the corresponding switches, while ensuring the insulation distance, they are led from the lower part of the switch and the outside of the coil to the corresponding switch positions, thus ensuring the insulation distance between the leads and facilitating the wiring at the same time. Brief Description of the Drawings

[0015] Figure 1 is a schematic diagram of the three-switch wiring structure of the present utility model;

[0016] Figure 2 is the present utility model's Figure 1 isolator enlarged view;

[0017] Figure 3 is the present utility model's Figure 2Cross-sectional view of the middle isolator;

[0018] Figure 4 It is a schematic structural diagram when two adjacent groups of isolators of the present utility model are arranged side by side;

[0019] Figure 5 It is a schematic structural diagram when two adjacent groups of isolators are arranged side by side in Embodiment 2 of the present utility model;

[0020] Figure 6 It is a layout structure diagram of the tap wire in the oil tank of the present utility model.

[0021] In the figure: tap wire 100, isolator 101, magnetic block 102, inner insulating ring 103, insulating filling block 104, outer insulating ring 105, first three-phase switch 1, second three-phase switch 2, third three-phase switch 3, oil tank 4, iron core 5, coil 6, first phase A tap wire 7, first phase B tap wire 8, first phase C tap wire 9, second phase A tap wire 10, second phase B tap wire 11, second phase C tap wire 12, third phase A tap wire 13, third phase B tap wire 14, third phase C tap wire 15. Specific embodiments

[0022] The following further describes the present application in detail with reference to the accompanying drawings. It is necessary to point out here that the following specific embodiments are only used to further illustrate the present application and cannot be understood as limiting the protection scope of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application according to the above application content.

[0023] Embodiment 1

[0024] As Figures 1 to 6 shown, a three-switch wiring structure, the three switches used in the present utility model mainly realize the functions of voltage regulation, phase regulation and loop closing in the distribution network. It is used to solve the problems of unstable voltage in the distribution network, unreasonable natural distribution of power flow in the line, and long power supply restoration period for faulty lines.

[0025] The above three-switch wiring structure includes a branch wiring 100, on which an isolator 101 is arranged. The isolator 101 includes a magnetic block 102, an inner insulating ring 103, an insulating filling block 104, and an outer insulating ring 105. Multiple groups of magnetic blocks 102 and insulating filling blocks 104 are provided. The multiple groups of magnetic blocks 102 and the multiple groups of insulating filling blocks 104 are distributed at intervals, and adjacent magnetic blocks 102 and insulating filling blocks 104 are fixedly connected. The multiple groups of inner insulating rings 103 and the multiple groups of insulating filling blocks 104 form a ring structure. The inner insulating ring 103 is fixedly arranged at the inner ring of the ring structure, and the outer insulating ring 105 is fixedly coated on the outer ring of the ring structure to protect the magnetic block 102. The sides of the multiple groups of magnetic blocks 102 away from the inner insulating ring 103 have the same magnetic poles, and the inner insulating ring 103 is movably sleeved on the outer ring of the branch wiring 100.

[0026] In the present utility model, an isolator 101 is arranged on the branch wiring 100. The isolator 101 is arranged on the branch wiring 100 that is close to each other. The isolator 101 uses the ring structure to keep away from each other, avoiding the phenomenon that the branch wirings 100 close to each other are next to each other, and ensuring that the insulation distance between adjacent branch wirings 100 is sufficient.

[0027] For example: when the sides of the multiple groups of magnetic blocks 102 on the ring structure away from the branch wiring 100 are all N poles, the repulsion of the same poles is used to make the adjacent branch wirings 100 be able to move relatively away from each other without being next to each other.

[0028] It should be noted that the magnetic force of the magnetic block 102 is small, and the influence on the device body is weak and can be ignored, only to avoid the situation that adjacent branch wirings 100 are next to each other.

[0029] Multiple groups of the ring structure can be equidistantly distributed on the branch wiring 100, so as to ensure that the branch wirings 100 within a certain distance will not approach each other. The ring structure only needs to be sleeved on a section of the branch wiring 100 that is close to each other, and there is no need to be arranged on the whole branch wiring 100, with low cost and easy operation.

[0030] Furthermore, the inner insulating ring 103 is in a compressed state and is pressed between the inner ring of the ring structure and the outer ring of the branch wiring 100, so that the ring structure can be stably installed on the outer ring of the branch wiring 100 without sliding, avoiding the phenomenon that the ring structure is easily lubricated and moved in the oil.

[0031] Still further, the included angle between the multiple groups of magnetic blocks 102 is below 20°, ensuring that the adjacent ring structures can generate repulsive forces no matter which side faces each other.

[0032] Embodiment 2

[0033] For example, when the surfaces of multiple groups of magnetic blocks 102 on the ferrule structure facing away from the tap wire 100 are all N poles, the repulsion between like poles is utilized to cause the adjacent tap wires 100 to move relatively away from each other and not touch each other.

[0034] Embodiment 3

[0035] The tap wires 100 are arranged in the fuel tank 4. The tap wires 100 include a first phase A tap wire 7, a first phase B tap wire 8, a first phase C tap wire 9, a second phase A tap wire 10, a second phase B tap wire 11, a second phase C tap wire 12, a third phase A tap wire 13, a third phase B tap wire 14, and a third phase C tap wire 15.

[0036] A first three-phase switch 1, a second three-phase switch 2, a third three-phase switch 3, an iron core 5, and a coil 6 are provided on the fuel tank 4. The coil 6 is wound around the iron core 5. The first three-phase switch 1, the second three-phase switch 2, and the third three-phase switch 3 are arranged in sequence on the same side of the body of the fuel tank 4. There are three groups of coils 6. The first three-phase switch 1, the second three-phase switch 2, the third three-phase switch 3, and the three groups of coils 6 are placed in parallel and staggered.

[0037] The three groups of coils 6 are sequentially distributed into phase A, phase B, and phase C. Phase A, phase B, and phase C are respectively close to the first three-phase switch 1, the second three-phase switch 2, and the third three-phase switch 3.

[0038] The first phase A tap wire 7 and the first phase B tap wire 8 are connected to the first three-phase switch 1 nearby. The first phase C tap wire 9 is led down to a height below the second three-phase switch 2 and passes through the lower part of the second three-phase switch 2, and then is led up to be connected to the first three-phase switch 1. The second phase B tap wire 11 and the second phase C tap wire 12 are connected to the second three-phase switch 2 nearby. The second phase A tap wire 10 is led down to a height below the first three-phase switch 1 and passes through the lower part of the first three-phase switch 1, and then is led up to be connected to the second three-phase switch 2. The third phase C tap wire 15 is connected to the third three-phase switch 3 nearby. The third phase A tap wire 13 and the third phase B tap wire 14 are wound around the outside of the coil 6 and are connected to the third three-phase switch 3 from one side of the fuel tank 4.

[0039] The three three-phase switches are arranged on the same side of the fuel tank 4 and are placed in parallel and staggered with the three-phase coils. The positions of the coil lead-out heads are arranged as far as possible towards the corresponding switches. In this way, most of the tap wires can be connected to the switches nearby. For a small number of tap wires that are far from the corresponding switches, while ensuring the insulation distance, they are led from the lower part of the switch and the outside of the coil to the corresponding switch positions, so as to ensure the insulation distance between the leads and facilitate the wiring at the same time.

[0040] The above three-phase switches and switches are: the first three-phase switch 1, the second three-phase switch 2, and the third three-phase switch 3; the three-phase coils are all: coil 6; the leads are all: the first phase A tapping 7, the first phase B tapping 8, the first phase C tapping 9, the second phase A tapping 10, the second phase B tapping 11, the second phase C tapping 12, the third phase A tapping 13, the third phase B tapping 14, and the third phase C tapping 15.

[0041] The first phase A tapping 7, the second phase A tapping 10, and the third phase A tapping 13 are all connected to phase A;

[0042] The first phase B tapping 8, the second phase B tapping 11, and the third phase B tapping 14 are all connected to phase B;

[0043] The first phase C tapping 9, the third phase C tapping 15, and the second phase C tapping 12 are all connected to phase C.

[0044] The above embodiments only represent several implementation manners of the present utility model, and the description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several modifications and improvements can still be made, and these all belong to the protection scope of the present utility model.

Claims

1. A three-switch wiring structure includes a branch wiring (100), characterized in that, An isolator (101) is arranged on the tap wire (100). The isolator (101) includes a magnetic block (102), an inner insulating ring (103), an insulating filling block (104), and an outer insulating ring (105). Multiple groups of the magnetic blocks (102) and the insulating filling blocks (104) are provided. The multiple groups of magnetic blocks (102) and the multiple groups of insulating filling blocks (104) are distributed at intervals, and adjacent magnetic blocks (102) and insulating filling blocks (104) are fixedly connected. A loop structure is formed between the multiple groups of inner insulating rings (103) and the multiple groups of insulating filling blocks (104). The inner insulating ring (103) is fixedly arranged at the inner ring of the loop structure, and the outer insulating ring (105) is fixedly covered at the outer ring of the loop structure. The sides of the multiple groups of magnetic blocks (102) away from the inner insulating ring (103) have the same magnetic poles. The inner insulating ring (103) is movably sleeved on the outer ring of the tap wire (100).

2. The three-switch wiring structure according to claim 1, characterized in that: The inner insulating ring (103) is in a compressed state and is pressed between the inner ring of the loop structure and the outer ring of the tap wire (100).

3. The three-switch wiring structure according to claim 1, wherein: The included angle between the multiple groups of magnetic blocks (102) is below 20°.

4. A three-switch wiring structure according to claim 1, characterized in that: The tap wire (100) is arranged in the oil tank (4). The tap wire (100) includes a first phase-A tap wire (7), a first phase-B tap wire (8), a first phase-C tap wire (9), a second phase-A tap wire (10), a second phase-B tap wire (11), a second phase-C tap wire (12), a third phase-A tap wire (13), a third phase-B tap wire (14), and a third phase-C tap wire (15).

5. A three-switch wiring structure according to claim 4, characterized in that: A first three-phase switch (1), a second three-phase switch (2), a third three-phase switch (3), an iron core (5), and a coil (6) are arranged on the oil tank (4). The coil (6) is wound around the iron core (5). The first three-phase switch (1), the second three-phase switch (2), and the third three-phase switch (3) are arranged in sequence on the same side of the body of the oil tank (4). Three groups of the coils (6) are provided. The first three-phase switch (1), the second three-phase switch (2), the third three-phase switch (3), and the three groups of coils (6) are placed in parallel and staggered.

6. The three-switch wiring structure according to claim 5, wherein: The three groups of coils (6) are sequentially distributed into phase A, phase B, and phase C. Phase A, phase B, and phase C are respectively close to the first three-phase switch (1), the second three-phase switch (2), and the third three-phase switch (3).

7. A three-switch wiring structure according to claim 6, characterized in that: The first phase A tap wire (7) and the first phase B tap wire (8) are connected to the first three-phase switch (1) nearby. The first phase C tap wire (9) is led down to a height below the second three-phase switch (2) and passes through the lower part of the second three-phase switch (2), and then is led up and connected to the first three-phase switch (1). The second phase B tap wire (11) and the second phase C tap wire (12) are connected to the second three-phase switch (2) nearby. The second phase A tap wire (10) is led down to a height below the first three-phase switch (1) and passes through the lower part of the first three-phase switch (1), and then is led up and connected to the second three-phase switch (2). The third phase C tap wire (15) is connected to the third three-phase switch (3) nearby. The third phase A tap wire (13) and the third phase B tap wire (14) wind around the outside of the coil (6) and are connected to the third three-phase switch (3) from one side of the oil tank (4).

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