Transformer trunking structure and transformer thereof

By introducing modular winding bobbins and adjustment components into the transformer wire trough structure, dynamically adjusting the wire trough length, and using step-shaped insulating partitions and wear-resistant insulating coating to improve insulation and voltage tolerance, the problems of insufficient flexibility and poor insulation in existing transformer wire trough structures are solved, and higher winding density and lower local discharge risks are achieved.

CN120221241AActive Publication Date: 2025-06-27JIANGSU ZHAOBO ELECTRIC TECH CO LTD

Patent Information

Application Number
CN202510579988.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-05-07
Publication Date
2025-06-27
Estimated Expiration
2045-05-07

AI Technical Summary

Technical Problem

The existing transformer trough structure lacks flexibility when used and cannot dynamically adjust the trough length, resulting in insufficient winding density, poor insulation, and prone to local discharge and voltage overload.

Method used

A transformer wire trough structure is designed, which includes a modular bobbin and a regulating assembly, which improves insulation and voltage withstand through a stepped insulating partition and wear-resistant insulating coating, and dynamically adjusts the wire trough length to increase winding density by adjusting the components.

Benefits of technology

Dynamic adjustment of the length of the wire trough is achieved, winding density is improved, local discharge risk is reduced, withstand voltage is increased, and maintenance process is simplified.

✦ Generated by Eureka AI based on patent content.

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Abstract

The transformer trunking structure comprises a transformer body, a monitoring structure and a transformer framework body, an oil tank is arranged on the side edge of the transformer body, a supporting support is arranged on the side, away from the oil tank, of the transformer body, and a heat dissipation assembly is installed on the left side of the transformer body; the monitoring structure is arranged above the transformer body, a transformer framework body is arranged in an inner cavity of the transformer body and comprises a base and a winding reel, the winding reel is installed above the base, and a top base is arranged above the winding reel. The transformer framework body is used for realizing a modular structure, modularizing the length of the wire duct, dynamically adjusting the length of the wire duct, supporting the fixation of wire harnesses with different numbers and lengths, reducing the occupied space of redundant wire ducts, improving the winding density, reducing the partial discharge risk by decreasing the electric field intensity along the height through the step-shaped insulating partition plates, and improving the reliability of the transformer framework body. The wear-resistant insulating coating reduces the damage of the copper wire insulating layer and increases the withstand voltage.
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Description

Technical Field

[0001] This application relates to the technical field of transformers. More specifically, this application relates to a transformer wire slot structure and a transformer thereof. Background Art

[0002] A transformer is an electrical device that operates based on the principle of electromagnetic induction. Its main function is to change the magnitude of the alternating voltage while keeping the frequency unchanged. A transformer consists of two or more winding coils and an iron core, and realizes the transmission of energy and the regulation of voltage through electromagnetic induction. Among them, the wire slot structure of the transformer is a key component for supporting and fixing the windings, and its design directly affects the arrangement accuracy of the windings, the heat dissipation efficiency, and the maintenance convenience. After retrieval, the existing application No. CN202310900919.5 discloses a transformer wire slot structure and a transformer, which solves the problems that "existing transformers do not have a structure for dust-proof fixing of wire slots, lifting of the transformer inner core, and preventing the transformer top cover from being lifted off due to excessive pressure, so that after the existing transformers are connected to cables, most of them are exposed for a long time and not well fixed. After long-term use, dust is extremely easy to accumulate at the joints, affecting the contact effect, and the exposed joints and cables are extremely easy to collide with animals or foreign objects thrown out, resulting in damage, which is not convenient for use. Moreover, when inspecting the inner core of the existing transformer, an external device needs to be used to take out the inner core for inspection. At the same time, when the transformer is damaged and the internal pressure is abnormal, it is extremely easy to cause the top cover to be lifted off due to excessive pressure, causing secondary injuries, which is not convenient for use." The inventor found the following problems in the above application process: The above application document "has the advantages of dust-proof fixing of wire slots, lifting of the transformer inner core, and preventing the transformer top cover from being lifted off due to excessive pressure, and solves the problems that dust is extremely easy to accumulate at the joints after long-term use without good fixing, affecting the contact effect, an external device needs to be used to take out the inner core for inspection when inspecting the inner core, and when the transformer is damaged and the internal pressure is abnormal, it is extremely easy to cause the top cover to be lifted off due to excessive pressure, causing secondary injuries", but in use, the structure of the traditional wire slot is usually the arrangement of multiple wire slots for accommodating windings, which is compact but may lack flexibility, thus resulting in the inability to flexibly adjust the traditional wire slot, and the coil insulation in the existing technology is insufficient. Therefore, a transformer wire slot structure and a transformer thereof are proposed to solve the above problems. Summary of the Invention

[0003] In order to overcome the above-mentioned defects of the prior art, this application provides a transformer wire slot structure and a transformer thereof to solve the problems raised in the above background art.

[0004] To achieve the above object, the present application provides the following technical solutions: A transformer wire groove structure and its transformer, including a transformer main body, a monitoring structure, and a transformer skeleton body. A fuel tank is provided on the side of the transformer main body. A support bracket is provided on the side of the transformer main body away from the fuel tank. An oil conservator is connected above the support bracket by bolts. A heat dissipation component is installed on the left side of the transformer main body. The monitoring structure is arranged above the transformer main body. A breather is provided above the fuel tank. A transformer skeleton body is arranged in the inner cavity of the transformer main body. The transformer skeleton body includes a base and a winding cylinder. A winding cylinder is installed above the base, and a top seat is arranged above the winding cylinder. A number of wire grooves are arranged on the side end face of the winding cylinder. A stepped insulating partition is embedded between a number of the wire grooves, and a wear-resistant insulating coating covers the inner walls of a number of the wire grooves. An adjusting component is arranged between the base and the top seat, and the adjusting component longitudinally penetrates through the center of the winding cylinder.

[0005] Preferably, the adjusting component includes a first engaging column and a second engaging column. The second engaging column is placed below the first engaging column. The first engaging column and the second engaging column are staggered and aligned with each other. A first docking tooth is arranged on the side of the first engaging column close to the second engaging column. A second docking tooth is placed at the center of the two first docking teeth. The first docking tooth and the second docking tooth are meshed with each other.

[0006] Preferably, the adjusting component further includes a connecting ring and a clamping ring. A clamping ring is connected to the side of the first engaging column away from the connecting ring, and a engaging part is installed on the outer surface of the clamping ring. Docking columns are installed on the sides of the clamping ring and the connecting ring away from the first engaging column.

[0007] Preferably, the breather includes a connecting pipe and a housing. The connecting pipe is connected below the housing, and an oil seal is arranged on the outer surface of the housing. Drying particles are placed on the inner wall of the housing.

[0008] Preferably, the monitoring structure includes an oil level gauge and a gas relay. The oil level gauge and the oil conservator form a bolt connection structure through detachable bolts. A first oil inlet pipe is arranged below the oil conservator, and the end of the first oil inlet pipe is connected to the gas relay.

[0009] Preferably, a second oil inlet pipe is arranged on the side of the fuel tank close to the transformer main body. A gas relay is installed at the center of the second oil inlet pipe. An oil flow relay is arranged at the centers of the heat dissipation component and the breather.

[0010] Preferably, an adjusting box is arranged on the side of the fuel tank away from the transformer main body. A monitoring box is arranged above the adjusting box. Temperature sensors are installed above the gas relay and the gas relay. A pressure sensor is installed above the oil flow relay.

[0011] Preferably, porcelain insulators are provided above the transformer body. Insulating sleeves are provided on the outer surfaces of the porcelain insulators, and lifting rings are provided on both sides of the porcelain insulators.

[0012] Preferably, the heat dissipation assembly includes a stepper motor and a fan. The output end of the stepper motor is equipped with a fan, and a placement bracket is fixed below the stepper motor by bolts.

[0013] Preferably, the body of the transformer is placed inside the inner wall of the transformer body. A docking bracket is connected above the body of the transformer. A pressure relief valve is provided on the side of the lifting ring away from the porcelain insulator. A tap changer is installed above the inner wall of the adjustment box. A fixing base is provided below the transformer body, and a fixing bracket is provided below the fixing base.

[0014] Technical effects and advantages of the present application: 1. Compared with the prior art, when the transformer wire groove structure and the transformer of the present application are in use, a modular structure is realized through the transformer skeleton body. Among them, the length of the wire groove is modular, and the length of the wire groove can be dynamically adjusted to support the fixing of wire harnesses with different quantities and lengths, reduce the space occupied by redundant wire grooves, improve the winding density, and the stepped insulating partition makes the electric field strength decrease along the height, reducing the risk of partial discharge. The wear-resistant insulating coating reduces the damage of the copper wire insulating layer and increases the withstand voltage.

[0015] 2. Compared with the prior art, when the transformer wire groove structure and the transformer of the present application are in use, the length of the wire groove is adjusted through the adjustment component to facilitate improving the winding density. Through the rotating top seat, connecting ring, first clamping column and second clamping column, the length of the winding cylinder and the length of the adjustment component can be aligned with each other. Through the connecting ring, clamping ring, engaging part and docking column, it is convenient to fix the winding cylinder, and at the same time, it is convenient to fix the state of the winding cylinder after adjustment, so as to facilitate fixing the state of the wire groove after adjustment.

[0016] 3. Compared with the prior art, when the transformer wire groove structure and the transformer of the present application are in use, when the oil enters the oil tank inside the transformer body through the pipeline to cool and circulate the body of the transformer, when the gas relay detects the gas generated by the decomposition of the oil in the pipeline, when the temperature inside the gas relay rises, and when the oil flow relay detects the abnormal oil flow in the pipeline resulting in increased pressure, the temperature sensor above the gas relay and the pressure sensor above the oil flow relay transmit the detected temperature to the monitoring box, and the monitoring box records and warns of the temperature, so that the maintenance personnel can quickly rush to the problematic transformer to check for problems. Description of the Drawings

[0017] Figure 1 Schematic three-dimensional structure diagram of the transformer body of the present application; Figure 2 This is a three-dimensional structural schematic diagram of the transformer skeleton body of the present application; Figure 3 This is a three-dimensional structural schematic diagram of the winding cylinder of the present application; Figure 4 This is a three-dimensional structural schematic diagram of the adjusting assembly of the present application; Figure 5 This is a three-dimensional structural schematic diagram of the docking bracket of the present application; Figure 6 This is a cross-sectional structural schematic diagram of the breather of the present application; Figure 7 This is a cross-sectional structural schematic diagram of the heat dissipation assembly of the present application; Figure 8 This is a three-dimensional structural schematic diagram of the monitoring box of the present application.

[0018] The reference numerals are: 1, transformer main body; 2, oil tank; 3, oil conservator; 4, support bracket; 5, oil level gauge; 6, gas relay; 7, lifting ring; 8, electric porcelain; 9, insulating bushing; 10, pressure relief valve; 11, gas relay; 12, heat dissipation assembly; 13, breather; 1301, connecting pipe; 1302, housing; 1303, oil seal; 1304, drying particles; 14, fixing seat; 15, fixing bracket; 16, adjusting box; 17, tap changer; 18, oil flow relay; 19, core body; 20, docking bracket; 21, stepping motor; 22, fan; 23, placing bracket; 24, monitoring structure; 25, first oil inlet pipe; 26, second oil inlet pipe; 27, monitoring box; 28, temperature sensor; 29, pressure sensor; 30, transformer skeleton body; 301, base; 302, winding cylinder; 303, top seat; 304, wire groove; 305, stepped insulating partition; 306, wear-resistant insulating coating; 307, adjusting assembly; 3071, first engaging column; 3072, second engaging column; 3073, first docking tooth; 3074, second docking tooth; 3075, connecting ring; 3076, clamping ring; 3077, engaging part; 3078, docking column. Detailed implementation manners

[0019] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0020] As shown in the attached Figures 1 to 8A transformer wire groove structure and its transformer are shown, including a transformer main body 1, a monitoring structure 24, and a transformer skeleton body 30. A fuel tank 2 is provided on the side of the transformer main body 1. The fuel tank 2 is the main part of the transformer, used to accommodate the iron core and coil of the transformer and provide oil for them, and store the remaining oil for replacement. A support bracket 4 is provided on the side of the transformer main body 1 away from the fuel tank 2. An oil conservator 3 is bolted above the support bracket 4. A heat dissipation component 12 is installed on the left side of the transformer main body 1. The monitoring structure 24 is arranged above the transformer main body 1. A breather 13 is provided above the fuel tank 2. A transformer skeleton body 30 is arranged in the inner cavity of the transformer main body 1. The transformer skeleton body 30 includes a base 301 and a winding cylinder 302. The winding cylinder 302 is installed above the base 301, and a top seat 303 is provided above the winding cylinder 302. A number of wire grooves 304 are arranged on the side end face of the winding cylinder 302. A stepped insulating partition 305 is embedded between the number of wire grooves 304. The height of the partition increases with the number of winding layers, forming a gradient electric field distribution, reducing the interlayer voltage difference. And the inner walls of the number of wire grooves 304 are covered with a wear-resistant insulating coating 306. The wear-resistant insulating coating 306 is made of polyimide material. An adjusting component 307 is arranged between the base 301 and the top seat 303, and the adjusting component 307 longitudinally penetrates through the center of the winding cylinder 302. The transformer skeleton body 30 realizes modular design, and the length of the wire groove 304 is modular. The length of the wire groove 304 is dynamically adjusted to support the fixation of wire harnesses with different numbers and lengths, reducing the space occupied by redundant wire grooves 304 and improving the winding density. And the stepped insulating partition 305 is used to make the electric field strength decrease along the height, reducing the risk of partial discharge. The wear-resistant insulating coating 306 reduces the damage of the copper wire insulating layer and increases the withstand voltage. And the adjusting component 307 adjusts the length of the wire groove 304, thereby facilitating the improvement of the winding density; The adjusting component 307 includes a first engaging post 3071 and a second engaging post 3072. The second engaging post 3072 is placed below the first engaging post 3071. The first engaging post 3071 and the second engaging post 3072 are staggered and aligned with each other. A first docking tooth 3073 is provided on one side of the first engaging post 3071 close to the second engaging post 3072. A second docking tooth 3074 is placed at the center of the two groups of first docking teeth 3073. The first docking tooth 3073 and the second docking tooth 3074 are engaged with each other. When the adjusting component 307 is placed inside the winding cylinder 302 and the length of the winding cylinder 302 is adjusted, the top seat 303 is rotated, so that the connecting ring 3075 inside the top seat 303 drives the first engaging post 3071 to rotate, causing the first engaging post 3071 and the second engaging post 3072 to separate. The first engaging post 3071 is moved. After the movement is completed, the first engaging post 3071 is re-closed with the second engaging post 3072. After the adjusting component 307 is fixed, the length of the winding cylinder 302 and the length of the adjusting component 307 are aligned with each other. The adjusting component 307 further includes a connecting ring 3075 and a clamping ring 3076. A clamping ring 3076 is connected to the side of the first engaging post 3071 away from the connecting ring 3075, and a engaging member 3077 is installed on the outer surface of the clamping ring 3076. Docking posts 3078 are installed on the sides of the clamping ring 3076 and the connecting ring 3075 away from the first engaging post 3071. The connecting ring 3075, the clamping ring 3076, the engaging member 3077 and the docking posts 3078 facilitate the fixing of the winding cylinder 302 and at the same time facilitate the fixing of the adjusted state of the winding cylinder 302; The breather 13 includes a connecting pipe 1301 and a housing 1302. The housing 1302 is connected below the connecting pipe 1301, and an oil seal 1303 is provided on the outer surface of the housing 1302. Drying particles 1304 are placed on the inner wall of the housing 1302. The breather 13 is used to detect the moisture content in the oil inside the transformer. When moisture accumulates in the oil inside the transformer main body 1, since the moisture will cause the insulation performance of the transformer main body 1 to decline and affect the normal operation of the transformer main body 1. When the temperature inside the transformer main body 1 changes, the moisture in the oil will be adsorbed onto the drying particles 1304 to reduce the moisture content for protecting the normal use of the oil; The monitoring structure 24 includes an oil level gauge 5 and a gas relay 6. The oil level gauge 5 and the conservator 3 form a bolted connection structure through removable bolts. The oil level is monitored by the oil level gauge 5 in the conservator 3 to ensure that the oil tank 2 is full of oil. At the same time, the conservator 3 can also play a role in refueling. When the oil volume inside the transformer body 1 decreases or the oil temperature rises, the excess oil will flow into the conservator 3 to maintain the oil level height inside the oil tank 2. In addition, the conservator 3 can also reduce the aging of the oil by circulating the oil. When the oil level in the conservator 3 is lower than the oil level gauge 5, the conservator 3 will automatically replenish the oil into the oil tank 2 and mix the oil in the conservator 3 with the oil in the oil tank 2, thereby slowing down the aging speed of the transformer oil. A first oil inlet pipe 25 is provided below the conservator 3, and the end of the first oil inlet pipe 25 is connected to a gas relay 6. A second oil inlet pipe 26 is provided on one side of the oil tank 2 close to the transformer body 1, and a gas relay 11 is installed at the center of the second oil inlet pipe 26. An oil flow relay 18 is provided at the center of the heat dissipation component 12 and the breather 13. The oil flow relay 18 is used to monitor the flow of the oil inside the transformer body 1 to avoid the situation where the oil inside the transformer body 1 cannot circulate due to problems such as poor oil flow or oil passage blockage. The oil flow relay 18 determines whether the oil is flowing normally by monitoring the flow rate and speed of the oil flow, and issues an alarm when a problem occurs to maintain the normal operation of the equipment. The working principle of the oil flow relay 18 is the same as that of the gas relay 6, but it uses oil flow instead of gas to monitor the operating state of the equipment. An adjustment box 16 is provided on one side of the oil tank 2 away from the transformer body 1, and a monitoring box 27 is provided above the adjustment box 16, enabling quick monitoring of the state of the oil-immersed transformer. Temperature sensors 28 are installed above both the gas relay 6 and the gas relay 11, and a pressure sensor 29 is installed above the oil flow relay 18. These sensors are used to monitor internal faults of the transformer and issue alarms in a timely manner. When a fault occurs inside the transformer, the fault will affect the oil, causing the oil to decompose and generate gas. When the gas relay 6 and the gas relay 11 detect gas in the connected pipeline, they are used to issue a warning to complete the warning of the transformer; There is a porcelain insulator 8 arranged above the transformer main body 1. An insulating bushing 9 is arranged on the outer surface of the porcelain insulator 8. Hoisting rings 7 are arranged on both sides of the porcelain insulator 8. The heat dissipation assembly 12 includes a stepper motor 21 and a fan 22. The output end of the stepper motor 21 is equipped with the fan 22. A placement bracket 23 is fixed below the stepper motor 21 by bolts. The heat dissipation assembly 12 cools the oil in the pipeline by air cooling, so that the cooled oil re-enters the transformer main body 1 for cooling. The inner wall of the transformer main body 1 is provided with a core 19. A docking bracket 20 is connected above the core 19. A pressure relief valve 10 is arranged on the side of the hoisting ring 7 away from the porcelain insulator 8, which is used to be installed in the pipeline connected to the transformer and is used to monitor the faults inside the transformer main body 1 and release the pressure in time to prevent the transformer oil tank 2 from bursting and exploding. However, when a fault occurs inside the transformer main body 1, the oil inside the transformer main body 1 will decompose to generate gas, open the outlet at the valve tail, discharge the generated gas from the transformer, reduce the pressure of the transformer, and protect the transformer main body 1. A tap changer 17 is installed above the inner wall of the regulating box 16. When it is necessary to adjust the pressure inside the transformer main body 1, the pressure inside the transformer main body 1 is changed by adjusting the tap changer 17. A fixing seat 14 is arranged below the transformer main body 1, and a fixing bracket 15 is arranged below the fixing seat 14. The fixing seat 14 and the fixing bracket 15 are used to place and install the transformer main body 1. In this embodiment, the oil level gauge 5, the gas relay 6, the pressure relief valve 10, the gas relay 11, the tap changer 17, the oil flow relay 18, the stepper motor 21, the fan 22, the temperature sensor 28, the pressure sensor 29, etc. are all well-known devices directly purchased in the market by those skilled in the art, and can be customized or selected according to actual needs. Here we only use them and do not make improvements on their structures and functions. Therefore, we will not elaborate on them in detail here.

[0021] The working process of this application is as follows: The top seat 303 installed above the winding drum 302 and the base 301 below have the same size. An adjusting component 307 is installed inside the winding drum 302. The second engaging column 3072 of the adjusting component 307 is connected to the clamping ring 3076. At the same time, the clamping ring 3076 is installed on the base 301 in cooperation with the winding drum 302 for fixing. When winding the winding drum 302, when the default length of the winding drum 302 cannot be greater than the width of the number of turns of the winding, when it is necessary to extend the length of the winding drum 302, rotate the inner surface of the top seat 303, rotate the top seat 303, so that the connecting ring 3075 inside the top seat 303 drives the first engaging column 3071 to rotate, so that the first docking tooth 3073 of the first engaging column 3071 is separated from the second docking tooth 3074 of the second engaging column 3072. Move the engaging column. After determining the length position of the first engaging column 3071, rotate the first docking tooth 3073 of the first engaging column 3071, and then re-engage the first docking tooth 3073 inside the second docking tooth 3074, so that the first docking tooth 3073 and the second docking tooth 3074 are closed again to complete the fixation. After fixing the first engaging column 3071 of the adjusting component 307, the length between the winding drums 302 changes with the length of the adjusting component 307. The oil tank 2 is the main part of the transformer, which is used to accommodate the iron core and coils of the transformer and provide oil for them, and store the remaining oil for replacement. The height of the partition increases with the number of winding layers, forming a gradient electric field distribution, reducing the interlayer voltage difference. The wear-resistant insulating coating 306 is made of polyimide material. The transformer skeleton body 30 realizes modular design, and the length of the wire groove 304 is modular. Dynamically adjust the length of the wire groove 304 to support the fixation of wire harnesses with different quantities and lengths, reduce the space occupied by redundant wire grooves 304, and improve the winding density. And use the stepped insulating partition 305 to make the electric field strength decrease along the height, reducing the risk of partial discharge. The wear-resistant insulating coating 306 reduces the damage of the copper wire insulating layer and increases the withstand voltage. And the adjusting component 307 adjusts the length of the wire groove 304, thereby facilitating the improvement of the winding density. Through the transformer body 1 and the monitoring structure 24, when the transformer body 1 is running internally, the oil contacts the body 19. When the body 19 is being converted, the heat generated is adsorbed by the oil. At the same time, the stepping motor 21 inside the heat dissipation component 12 drives the fan 22 to rotate, and the oil inside the transformer body 1 is cooled by the action of air cooling. At the same time, the oil inside the oil conservator 3 and the oil inside the transformer body 1 circulate. When a fault occurs in the body 19 inside the transformer body 1, resulting in a short circuit and overload, it acts on the oil itself, causing the oil to decompose and generate gas, which flows inside the transformer. The gas relay 6 and the gas relay 11 used to connect the oil pipelines will give a warning when detecting the gas inside the pipeline.To prevent the gas that appears from continuously accumulating inside the transformer main body 1 and causing damage to the transformer main body 1. When the oil circulation between the oil conservator 3, the oil tank 2 and the transformer main body 1 stagnates, returns, etc., resulting in poor oil flow or blockage, the electrical connection signal inside the oil flow relay 18 is turned on to give a warning for real-time monitoring of the oil circulation. For the breather 13 connected to the transformer, after the oil is continuously heated and cooled, the moisture content of the oil increases, and the increase in moisture will affect the insulation performance of the transformer main body 1 and cause a failure. Then, the drying particles 1304 inside the breather 13 adsorb the moisture inside the transformer main body 1 through the connecting pipe 1301.,

Claims

1. A transformer wire trough structure, comprising a transformer body (1), a monitoring structure (24) and a transformer skeleton body (30), characterized in that: An oil tank (2) is arranged on the side of the transformer body (1), a support bracket (4) is arranged on the side of the transformer body (1) away from the oil tank (2), an oil pillow (3) is connected to the top of the support bracket (4) by bolts, a heat dissipation component (12) is installed on the left side of the transformer body (1), the monitoring structure (24) is arranged above the transformer body (1), a respirator (13) is arranged above the oil tank (2), a transformer skeleton body (30) is arranged in the inner cavity of the transformer body (1), and the transformer skeleton body (30) comprises a base (301) and a winding A bobbin (302), a winding bobbin (302) is mounted above the base (301), and a top seat (303) is arranged above the winding bobbin (302), a plurality of groups of wire grooves (304) are arranged on the side end surface of the winding bobbin (302), a stepped insulating partition (305) is embedded between the plurality of groups of wire grooves (304), and the inner walls of the plurality of groups of wire grooves (304) are covered with a wear-resistant insulating coating (306), an adjustment component (307) is arranged between the base (301) and the top seat (303), and the adjustment component (307) vertically passes through the center of the winding bobbin (302).

2. A transformer wire slot structure according to claim 1, characterized in that: The adjustment component (307) comprises a first engaging column (3071) and a second engaging column (3072); the second engaging column (3072) is placed below the first engaging column (3071); the first engaging column (3071) and the second engaging column (3072) are staggered and aligned with each other; a first docking tooth (3073) is arranged on one side of the first engaging column (3071) close to the second engaging column (3072); a second docking tooth (3074) is placed at the center of the two groups of the first docking teeth (3073); and the first docking teeth (3073) and the second docking teeth (3074) are meshed with each other.

3. A transformer wire slot structure according to claim 2, characterized in that: The adjustment assembly (307) further comprises a connecting ring (3075) and a clamping ring (3076); the first engaging column (3071) is connected to the clamping ring (3076) on a side away from the connecting ring (3075); a clamping piece (3077) is installed on the outer surface of the clamping ring (3076); and a docking column (3078) is installed on both the clamping ring (3076) and the connecting ring (3075) on a side away from the first engaging column (3071).

4. A transformer wire slot structure according to claim 1, characterized in that: The respirator (13) comprises a connecting pipe (1301) and an outer shell (1302); the outer shell (1302) is connected to the lower part of the connecting pipe (1301); an oil seal (1303) is provided on the outer surface of the outer shell (1302); and dry particles (1304) are placed on the inner wall of the outer shell (1302).

5. A transformer wire slot structure according to claim 4, characterized in that: The monitoring structure (24) comprises an oil level gauge (5) and a gas relay (6); the oil level gauge (5) and the oil pillow (3) are connected by a bolt connection structure via detachable bolts; a first oil inlet pipe (25) is provided below the oil pillow (3), and the end of the first oil inlet pipe (25) is connected to the gas relay (6).

6. A transformer wire slot structure according to claim 5, characterized in that: A second oil inlet pipe (26) is provided on a side of the oil tank (2) close to the transformer body (1), a gas relay (11) is installed at the center of the second oil inlet pipe (26), and an oil flow relay (18) is provided at the center of the heat dissipation component (12) and the breather (13).

7. A transformer wire slot structure according to claim 6, characterized in that: A regulating box (16) is provided on a side of the oil tank (2) away from the transformer body (1), a monitoring box (27) is provided above the regulating box (16), temperature sensors (28) are installed above the gas relay (6) and the gas relay (11), and a pressure sensor (29) is installed above the oil flow relay (18).

8. A transformer wire slot structure according to claim 7, characterized in that: An insulator (8) is arranged above the transformer body (1), an insulating sleeve (9) is arranged on the outer surface of the insulator (8), and hanging rings (7) are arranged on both sides of the insulator (8).

9. A transformer wire slot structure according to claim 8, characterized in that: The heat dissipation assembly (12) comprises a stepper motor (21) and a fan (22), the fan (22) being installed at the output end of the stepper motor (21), a placement bracket (23) being fixed below the stepper motor (21) by bolts, a body (19) being placed on the inner wall of the transformer body (1), a docking bracket (20) being connected above the body (19), a pressure release valve (10) being provided on the side of the lifting ring (7) away from the insulator (8), a tap changer (17) being installed above the inner wall of the regulating box (16), a fixing seat (14) being provided below the transformer body (1), and a fixing bracket (15) being provided below the fixing seat (14).

10. A transformer, characterized in that: The transformer comprises the transformer wire slot structure according to any one of claims 1 to 9.

Citation Information

Patent Citations

  • Transformer wire duct structure and transformer

    CN116759192A

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    CN204130323U

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