Fan variable winding insulation structure

Abstract

The utility model discloses a fan variable winding insulation structure. The utility model discloses a shell is fixedly connected with stator in the shell inside, is established winding slot in the stator inner wall, and winding slot sets up multiple groups, and winding slot inside is connected with variable winding body, the fastener is provided with two groups in winding slot inside is provided with single group insulation mechanism, the fastener includes fixed block, the recess, the connecting plate, the restraint band, the clamping block, the fixed block fixedly connected in winding slot inside, the recess is established on fixed block upper end, the connecting plate is fixedly connected with fixed block, the restraint band is fixedly connected with connecting plate, the clamping block is fixedly connected with restraint band, and through single group insulation mechanism can play insulation protection effect to variable winding body, and through fastener can prevent single group insulation mechanism and move and fall off simultaneously, thereby can make fan not easy to appear the trouble.

Description

Technical Field

[0001] This utility model relates to the field of wind turbine technology, specifically to a wind turbine variable winding insulation structure. Background Technology

[0002] A fan is a machine that uses input mechanical energy to increase gas pressure and discharge gas; it is a type of driven fluid machinery. In China, "fan" is a common abbreviation for gas compression and gas transportation machinery. The term "fan" generally includes ventilators, blowers, and wind turbines. The power unit of a fan mainly consists of a stator, windings, and a rotor, and the windings require an insulation structure during installation.

[0003] However, existing wind turbine winding insulation structures typically consist of only one or more simple composite insulating papers. While the composite insulating paper can serve as an insulation structure, it can easily move between the stator and windings due to vibrations generated during wind turbine operation, which can lead to wind turbine failure. Utility Model Content

[0004] The purpose of this invention is to provide an insulation structure for wind turbine windings to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a wind turbine variable winding insulation structure, comprising: a shell, a stator fixedly connected inside the shell, a winding slot provided on the inner wall of the stator, and multiple sets of winding slots, a variable winding body wound inside the winding slot, fasteners provided inside the winding slot, and two sets of fasteners provided, and a single set of insulation mechanism provided inside the winding slot.

[0006] Furthermore, the fastener includes a fixing block, a slot, a connecting plate, a restraining strap, and a locking block. The fixing block is fixedly connected inside the winding slot, the slot is formed at the upper end of the fixing block, the connecting plate is fixedly connected to the fixing block, the restraining strap is fixedly connected to the connecting plate, and the locking block is fixedly connected to the restraining strap.

[0007] Furthermore, the single-unit insulation mechanism includes composite insulating paper, a first adhesive, and a second adhesive, with the first adhesive fixedly connected to the back of the composite insulating paper and the second adhesive fixedly connected to the front of the composite insulating paper.

[0008] Furthermore, the fixing block and the locking block are made of epoxy resin, and the restraint strap is made of mica tape.

[0009] Furthermore, both the surfaces of the first adhesive and the second adhesive are covered with release paper.

[0010] Furthermore, the peripheral side of the transformer winding body is provided with multiple sets of insulation mechanisms, the multiple sets of insulation mechanisms including a thin film and a third adhesive. The thin film is wrapped around the peripheral side of the transformer winding body, and the third adhesive is fixedly connected to the upper end of the thin film.

[0011] Furthermore, the multiple sets of insulation mechanisms also include easy-tear seams and a fourth adhesive. The easy-tear seams are opened at the left and right ends of the film, and the fourth adhesive is fixedly connected to the left and right ends of the film.

[0012] Furthermore, both the third and fourth adhesives are covered with release paper.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This invention provides insulation protection for the transformer winding body through a single set of insulation mechanisms, while fasteners prevent the single set of insulation mechanisms from moving or falling off, thus making the fan less prone to failure. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the front view structure in one embodiment of the present invention;

[0016] Figure 2 for Figure 1 Schematic diagram of the structure of the medium fastener;

[0017] Figure 3 for Figure 1 Schematic diagram of the single-unit insulation mechanism;

[0018] Figure 4 for Figure 1 A schematic diagram of the structure of multiple sets of insulation mechanisms.

[0019] Reference numerals: 1. Outer shell; 2. Stator; 3. Winding slot; 4. Variable winding body; 5. Fastener; 51. Fixing block; 52. Slot; 53. Connecting plate; 54. Restraint strap; 55. Locking block; 6. Single-set insulation mechanism; 61. Composite insulation paper; 62. First adhesive; 63. Second adhesive; 7. Multiple-set insulation mechanism; 71. Film; 72. Third adhesive; 73. Tear-off seam; 74. Fourth adhesive. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please refer to the following: Figures 1-4 ,in Figure 1 This is a schematic diagram of the front view structure in one embodiment of the present invention; Figure 2 for Figure 1 Schematic diagram of the structure of the medium fastener; Figure 3 for Figure 1 Schematic diagram of the single-unit insulation mechanism; Figure 4 for Figure 1 A schematic diagram of a multi-set insulation mechanism is shown. A wind turbine transformer winding insulation structure includes: a housing 1, a stator 2 fixedly connected inside the housing 1, a winding slot 3 opened on the inner wall of the stator 2, and multiple sets of winding slots 3 are opened. A transformer winding body 4 is wound inside the winding slot 3. Fasteners 5 are provided inside the winding slot 3, and two sets of fasteners 5 are provided. The two sets of fasteners 5 are located at the upper and lower ends inside the winding slot 3. A single set of insulation mechanism 6 is provided inside the winding slot 3.

[0022] The fastener 5 includes a fixing block 51, a slot 52, a connecting plate 53, a binding strap 54, and a locking block 55. The fixing block 51 is fixedly connected inside the winding slot 3. The slot 52 is opened on the upper end of the fixing block 51. The connecting plate 53 is fixedly connected to the fixing block 51. The binding strap 54 is fixedly connected to the connecting plate 53. The locking block 55 is fixedly connected to the binding strap 54. The locking block 55 is engaged with the slot 52.

[0023] The single-unit insulation mechanism 6 includes composite insulating paper 61, first adhesive 62, and second adhesive 63. The first adhesive 62 is fixedly connected to the back of the composite insulating paper 61, and the second adhesive 63 is fixedly connected to the front of the composite insulating paper 61. The first adhesive 62 can fix the composite insulating paper 61 inside the winding slot 3, and the second adhesive 63 can fix the left and right ends of the composite insulating paper 61 together.

[0024] The fixing block 51 and the locking block 55 are made of epoxy resin, and the restraint strap 54 is made of mica tape.

[0025] Both the surfaces of the first adhesive 62 and the second adhesive 63 are covered with release paper.

[0026] Multiple sets of insulation mechanisms 7 are provided on the four sides of the transformer winding body. The multiple sets of insulation mechanisms 7 include a thin film 71 and a third adhesive 72. The thin film 71 is wrapped around the four sides of the transformer winding body, and the third adhesive 72 is fixedly connected to the upper end of the thin film 71. The thin film 71 is a parallelogram shape, which can adapt to the shape after the winding is installed. The material of the thin film 71 is polyester film.

[0027] The multiple insulation mechanism 7 also includes easy-tear slits 73 and a fourth adhesive 74. The easy-tear slits 73 are opened at the left and right ends of the film 71, and the fourth adhesive 74 is fixedly connected to the left and right ends of the film 71. The size of the film 71 is set according to the winding requirements, and the distance between the easy-tear slits 73 is set according to the diameter of the winding. The easy-tear slits 73 make it easy to tear the left and right ends of the film 71 into multiple thin strips.

[0028] Both the third adhesive 72 and the fourth adhesive 74 are covered with release paper.

[0029] In summary, the wind turbine winding insulation structure provided by this utility model allows for the following steps during operation: First, the release paper on the surface of the first adhesive 62 is torn off. Then, the composite insulation paper 61 is pasted onto the inner wall of the winding slot 3 using the first adhesive 62. After the winding body 4 is installed, the composite insulation paper 61 is wrapped around the sides of the winding body 4. Then, the left and right ends of the composite insulation paper 61 are glued together using the second adhesive 63. At this time, the composite insulation paper 61 can provide insulation and protection for the winding body 4. The locking block 55 is pulled to allow the binding strap 54 to pass around the winding body 4 wrapped by the composite insulation paper 61. Then, the locking block 55 is inserted into the slot 52. At this time, the binding strap 54 can fix the single insulation mechanism 6 and the winding body 4.

[0030] Tear the film 71 open at both ends according to the tear seam 73. At this time, the middle part of the film 71 can wrap the exposed sections of multiple sets of transformer winding bodies 4 as needed, while the left and right ends of the film 71 can wrap a single set of transformer winding bodies 4. At the same time, the front and rear ends of the film 71 can be connected by the third adhesive 72, and the film 71 can be fixed to the surface of the transformer winding body 4 by the fourth adhesive 74. This structure can insulate and wrap the exposed parts of the transformer winding body 4, and it is not easy to fall off.

Claims

1. A wind turbine transformer winding insulation structure, characterized in that, include: The outer casing (1) has a stator (2) fixedly connected inside it. The inner wall of the stator (2) has a winding slot (3) with multiple sets. A variable winding body (4) is wound inside the winding slot (3). Fasteners (5) are provided inside the winding slot (3) with two sets. A single insulation mechanism (6) is provided inside the winding slot (3).

2. The wind turbine transformer winding insulation structure according to claim 1, characterized in that, The fastener (5) includes a fixing block (51), a slot (52), a connecting plate (53), a restraint strap (54), and a locking block (55). The fixing block (51) is fixedly connected inside the winding slot (3). The slot (52) is opened at the upper end of the fixing block (51). The connecting plate (53) is fixedly connected to the fixing block (51). The restraint strap (54) is fixedly connected to the connecting plate (53). The locking block (55) is fixedly connected to the restraint strap (54).

3. The wind turbine transformer winding insulation structure according to claim 2, characterized in that, The single-unit insulation mechanism (6) includes composite insulating paper (61), a first adhesive (62), and a second adhesive (63). The first adhesive (62) is fixedly connected to the back of the composite insulating paper (61), and the second adhesive (63) is fixedly connected to the front of the composite insulating paper (61).

4. The wind turbine transformer winding insulation structure according to claim 3, characterized in that, The fixing block (51) and the locking block (55) are made of epoxy resin, and the binding strap (54) is made of mica tape.

5. The wind turbine transformer winding insulation structure according to claim 4, characterized in that, The surfaces of the first adhesive (62) and the second adhesive (63) are both covered with release paper.

6. The wind turbine transformer winding insulation structure according to claim 5, characterized in that, The variable winding body (4) is provided with multiple sets of insulation mechanisms (7) on its peripheral side. The multiple sets of insulation mechanisms (7) include a thin film (71) and a third adhesive (72). The thin film (71) is wrapped around the peripheral side of the variable winding body (4), and the third adhesive (72) is fixedly connected to the upper end of the thin film (71).

7. The wind turbine transformer winding insulation structure according to claim 6, characterized in that, The multiple sets of insulation mechanisms (7) also include easy-tear seams (73) and a fourth adhesive (74). The easy-tear seams (73) are opened at the left and right ends of the film (71), and the fourth adhesive (74) is fixedly connected to the left and right ends of the film (71).

8. The wind turbine transformer winding insulation structure according to claim 7, characterized in that, Both the third adhesive (72) and the fourth adhesive (74) are covered with release paper.

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