A superimposed transformer

Abstract

The present invention discloses a superimposed transformer, comprising a chassis, a winding fixedly connected to an inner cavity of the chassis, an iron core passing through the inner cavity of the winding, wiring terminals fixedly connected to both ends of the outer surface of the winding, an iron yoke fixedly connected to the top of the iron core, heat sinks fixedly connected to the outer surfaces of both ends of the chassis, a porcelain bushing fixedly connected to the top of the chassis, and a lifting ring fixedly connected to the top of the chassis. The heat sinks fixedly connected to the outer surfaces of both ends of the chassis are convenient for increasing the heat dissipation area and quickly dissipating the heat. The lifting ring is fixedly connected to the top of the chassis, which is convenient for lifting the chassis with a crane and installing it at a high place. A pressure reducing pipe is fixedly connected to one end of the top of the chassis. When the oil pressure in the chassis is too high, the gas in the chassis is released to reduce the oil pressure. The oil tank fixedly connected to the top of the chassis away from one end of the pressure reducing pipe is convenient for replenishing oil. A desiccant is installed in the oil tank to absorb moisture, so that the air in the upper part of the oil tank is kept dry to avoid pollution by industrial dust.

Description

Technical Field

[0001] The invention relates to a transformer, in particular to a superposition transformer, and belongs to the technical field of transformer equipment. Background Art

[0002] A transformer is a device that uses the principle of electromagnetic induction to change AC voltage. Its main components are a primary coil, a secondary coil and an iron core (magnetic core). Its main functions include voltage conversion, current conversion, impedance conversion, isolation, voltage stabilization (magnetic saturation transformer), etc. It can be divided into power transformers, furnace transformers, rectifier transformers, industrial frequency test transformers, voltage regulators, mining transformers, audio transformers, medium frequency transformers, high frequency transformers, impact transformers, instrument transformers, electronic transformers, reactors and mutual inductors, etc. The present invention relates to a superimposed transformer. Summary of the invention

[0003] The invention provides a superimposed transformer. The device is fixedly connected with heat sinks on the outer surfaces of both ends of a chassis, so as to increase the heat dissipation area and dissipate heat quickly. A lifting ring is fixedly connected with the top of the chassis, so as to lift the chassis with a crane and install it at a high place. A pressure reducing pipe is fixedly connected with one end of the top of the chassis. When the oil pressure in the chassis is too high, the gas in the chassis is released to reduce the oil pressure. The oil tank is fixedly connected with the top of the chassis away from one end of the pressure reducing pipe, so as to replenish the oil. A desiccant is installed in the oil tank, so as to absorb moisture, so as to keep the air in the upper part of the oil tank dry and avoid pollution by industrial dust.

[0004] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0005] The present invention provides a superimposed transformer, comprising a chassis, wherein a winding is fixedly connected to an inner cavity of the chassis, an iron core passes through the inner cavity of the winding, two ends of the outer surface of the winding are respectively fixedly connected to wiring terminals, an iron yoke is fixedly connected to the top of the iron core, heat sinks are fixedly connected to the outer surfaces of both ends of the chassis, a porcelain bushing is fixedly connected to the top of the chassis, a lifting ring is fixedly connected to the top of the chassis, a pressure reducing pipe is fixedly connected to one end of the top of the chassis, an oil tank is fixedly connected to one end of the top of the chassis away from the pressure reducing pipe, an oil meter is fixedly connected to the outer surface of the oil tank, an oil pump is fixedly connected to one end of the inner cavity of the chassis, an oil pipeline is fixedly connected to the top of the oil pump, the oil pipeline passes through the outer wall of the top of the chassis and is fixedly connected to the oil tank, and a grounding bolt is threadedly connected to one end of the bottom of the chassis.

[0006] As a preferred technical solution of the present invention, the outer surface of the winding is coated with insulating material, and the number of the lifting rings is two and they are symmetrically distributed on the top of the chassis.

[0007] As a preferred technical solution of the present invention, the iron core is composed of a plurality of mountain-shaped iron sheets combined in opposite directions.

[0008] As a preferred technical solution of the present invention, an oil pressure gauge is fixedly connected to one end of the pressure reducing pipeline, and an explosion-proof membrane is installed on the top of the pressure reducing pipeline.

[0009] As a preferred technical solution of the present invention, a desiccant is installed in the oil tank, and the oil tank is threadedly connected to the top of the chassis by bolts.

[0010] The beneficial effects achieved by the present invention are as follows: the device is fixedly connected with heat sinks on the outer surfaces of both ends of the chassis, which is convenient for increasing the heat dissipation area and quickly dissipating the heat; a lifting ring is fixedly connected with the top of the chassis, which is convenient for lifting the chassis with a crane and installing it at a high place; a pressure reducing pipe is fixedly connected with one end of the top of the chassis; when the oil pressure in the chassis is too high, the gas in the chassis is released to reduce the oil pressure; an oil tank is fixedly connected to the top of the chassis away from one end of the pressure reducing pipe, which is convenient for replenishing oil; a desiccant is installed in the oil tank to absorb moisture, so that the air in the upper part of the oil tank is kept dry to avoid pollution from industrial dust. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0012] Figure 1 It is a schematic diagram of the internal structure of the present invention;

[0013] Figure 2 is a schematic diagram of the winding structure of the present invention;

[0014] Figure 3 It is a schematic diagram of the mountain-shaped iron sheet structure of the present invention;

[0015] Figure 4 It is a schematic diagram of the iron core structure of the present invention.

[0016] In the figure: 1. Chassis; 2. Winding; 3. Iron core; 4. Mountain-shaped iron sheet; 5. Terminal block; 6. Iron yoke; 7. Heat sink; 8. Porcelain bushing; 9. Lifting ring; 10. Oil tank; 11. Oil gauge; 12. Grounding bolt; 13. Oil pipeline; 14. Oil pump; 15. Pressure reducing pipeline. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] Example: Figure 1-4 As shown, a superimposed transformer of the present invention comprises a chassis 1, a winding 2 is fixedly connected to the inner cavity of the chassis 1, an iron core 3 passes through the inner cavity of the winding 2, wiring terminals 5 are fixedly connected to the two ends of the outer surface of the winding 2, an iron yoke 6 is fixedly connected to the top of the iron core 3, heat sinks 7 are fixedly connected to the outer surfaces of the two ends of the chassis 1, a porcelain bushing 8 is fixedly connected to the top of the chassis 1, a lifting ring 9 is fixedly connected to the top of the chassis 1, a pressure reducing pipe 15 is fixedly connected to one end of the top of the chassis 1, an oil tank 10 is fixedly connected to the end of the top of the chassis 1 away from the pressure reducing pipe 15, an oil meter 11 is fixedly connected to the outer surface of the oil tank 10, an oil pump 14 is fixedly connected to one end of the inner cavity of the chassis 1, an oil delivery pipe 13 is fixedly connected to the top of the oil pump 14, the oil delivery pipe 13 passes through the outer wall of the top of the chassis 1 and is fixedly connected to the oil tank 10, and a grounding bolt 12 is threadedly connected to one end of the bottom of the chassis 1.

[0019] The outer surface of the winding 2 is coated with insulating material to prevent short circuit. There are two lifting rings 9 and they are symmetrically distributed on the top of the chassis 1, which is convenient for the crane to lift the chassis. The iron core 3 is composed of multiple mountain-shaped iron sheets 4 combined in opposite directions. An oil pressure gauge is fixedly connected to one end of the pressure reducing pipe 15, which is convenient for opening the pressure reducing pipe 15 according to the observation of the oil pressure to release the excessive oil pressure. An explosion-proof membrane is installed on the top of the pressure reducing pipe 15 to prevent external pollution from entering; there are multiple heat sinks 7 and they are evenly distributed at both ends of the chassis 1 to facilitate heat dissipation and increase the heat dissipation area; a desiccant is installed in the oil tank 10 to absorb moisture, keep the air in the upper part of the oil tank dry, and avoid pollution from industrial dust. The oil tank 10 is threadedly connected to the top of the chassis 1 by bolts, which is convenient for disassembly and installation.

[0020] Specifically, when the present invention is used, the mountain-shaped iron sheets 4 are first combined into the iron core 3 in opposite directions, the winding 2 is wound on the outer surface of the iron core 3, and then the outer surface of the winding 2 is coated with an insulating layer. Then the oil pump 14 is turned on to pour oil into the inside of the chassis 1, and then the chassis 1 starts to work. A large amount of heat caused by iron loss and copper loss is transported into the oil tank 10 through the oil, and the moisture is absorbed by the desiccant in the oil tank 10, and part of the heat is dissipated from the heat sink 7. Finally, when a serious fault occurs inside the transformer, the gas inside the oil tank breaks through the explosion-proof membrane and sprays out from the pressure reducing pipe 15 to protect the transformer from serious damage.

[0021] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A superimposed transformer, comprising a chassis (1), characterized in that: The inner cavity of the chassis (1) is fixedly connected to a winding (2), an iron core (3) passes through the inner cavity of the winding (2), both ends of the outer surface of the winding (2) are fixedly connected to wiring terminals (5), the top of the iron core (3) is fixedly connected to an iron yoke (6), the outer surfaces of both ends of the chassis (1) are fixedly connected to heat sinks (7), the top of the chassis (1) is fixedly connected to a porcelain bushing (8), the top of the chassis (1) is fixedly connected to a lifting ring (9), and one end of the top of the chassis (1) is fixedly connected to a heat sink. A pressure reducing pipeline (15) is provided on the top of the chassis (1), one end of which is away from the pressure reducing pipeline (15) is fixedly connected to an oil tank (10), an outer surface of the oil tank (10) is fixedly connected to an oil gauge (11), an inner end of the chassis (1) is fixedly connected to an oil pump (14), a top of the oil pump (14) is fixedly connected to an oil delivery pipeline (13), the oil delivery pipeline (13) passes through the outer wall of the top of the chassis (1) and is fixedly connected to the oil tank (10), and a grounding bolt (12) is threadedly connected to one end of the bottom of the chassis (1); The outer surface of the winding (2) is coated with insulating material, and the number of the lifting rings (9) is two and they are symmetrically distributed on the top of the chassis (1); The iron core (3) is composed of a plurality of mountain-shaped iron sheets (4) assembled in opposite directions; One end of the pressure reducing pipe (15) is fixedly connected to an oil pressure gauge, and the top of the pressure reducing pipe (15) is installed with an explosion-proof membrane; There are multiple heat sinks (7) evenly distributed at both ends of the chassis (1); A desiccant is installed in the oil tank (10), and the oil tank (10) is threadedly connected to the top of the chassis (1) via bolts; The method for using the superimposed transformer is as follows: first, a plurality of mountain-shaped iron sheets are combined into an iron core in opposite directions, and a winding is wound on the outer surface of the iron core; then, an insulating layer is applied to the outer surface of the winding, and then the oil pump is turned on to pour oil into the interior of the chassis, so that the chassis starts to work, the desiccant in the oil tank (10) absorbs moisture, and the heat sink (7) dissipates heat caused by iron loss and copper loss; finally, when a fault occurs inside the transformer, the gas inside the oil tank breaks through the explosion-proof membrane and sprays out from the pressure-reducing pipe (15).

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