Transformer

Abstract

The invention relates to the field of transformers, in particular to a transformer which comprises a main body, a plurality of cooling fins are fixedly connected to the main body, each cooling fin is of an internal hollow structure, the cooling fins communicate with the interior of the main body, a connecting pipe is fixedly connected to the upper end of the main body, and two oil pipes are fixedly connected to the connecting pipe; sliding plugs are slidably connected into the two oil pipes, push rods are fixedly connected to the lower ends of the sliding plugs, movable plates are fixedly connected to the lower ends of the push rods, a plurality of scrapers are fixedly connected to the movable plates, and the scrapers make contact with the side faces of the cooling fins correspondingly; a spring is fixedly connected between the sliding plug and the inner wall of the oil pipe; according to the transformer, the cooling fins can be automatically cleaned.

Description

Technical Field

[0001] This invention relates to the field of transformers, and more particularly to a transformer. Background Technology

[0002] A transformer is a device that uses the principle of electromagnetic induction to change AC voltage. Transformers are basic equipment for power transmission and distribution and are widely used in industry, agriculture, transportation, urban communities and other fields. Transformers are divided into dry type and oil-immersed type. In oil-immersed type, the iron core and coil windings are immersed in insulating oil. When the transformer is working, the heat generated is transferred to the heat sink through the insulating oil and then dissipated by the heat sink, achieving a good heat transfer effect. However, after a period of use, the surface of the heat sink of conventional transformers will accumulate a layer of stubborn dirt, which increases the difficulty of cleaning for workers. Summary of the Invention

[0003] In view of this, the technical problem to be solved by the present invention is to provide a transformer that can automatically clean the heat sink.

[0004] A transformer includes a main body with multiple heat sinks fixedly connected to it. Each heat sink has a hollow internal structure and is connected to the interior of the main body. A connecting pipe is fixedly connected to the upper end of the main body, and two oil pipes are fixedly connected to the connecting pipe. A sliding plug is slidably connected inside each of the two oil pipes. A push rod is fixedly connected to the lower end of the sliding plug, and a movable plate is fixedly connected to the lower end of the push rod. Multiple scrapers are fixedly connected to the movable plate, and the scrapers contact the sides of the heat sinks respectively. The left and right ends of the connecting pipe are connected to the interior of the connecting oil pipes respectively. A spring is fixedly connected between the sliding plug and the inner wall of the oil pipe.

[0005] Both of the oil pipes have spikes fixedly connected to their inner bottom surfaces.

[0006] Both of the aforementioned plugs are made of glass, and the outer ring of the plug is wrapped with a rubber ring, which is in contact with the inner wall of the oil pipe.

[0007] Two pressure relief pipes are fixedly connected to the connecting pipe, and each pressure relief pipe is equipped with a pressure relief valve.

[0008] Rubber strips are adhered to the edges of multiple scraper blades.

[0009] Both of the oil pipes have an oil drain port at their lower ends.

[0010] Both of the moving plates are fixedly connected to a flow guide plate.

[0011] The lower end of the main body is provided with two mounting ears. Attached Figure Description

[0012] The present invention will now be described in further detail with reference to the accompanying drawings and specific implementation methods.

[0013] Figure 1 and Figure 2 This is a schematic diagram of the overall structure of a transformer;

[0014] Figure 3 This is a schematic diagram of the heat sink structure;

[0015] Figure 4 This is a schematic diagram of the scraper blade.

[0016] Figure 5 This is a schematic diagram of the movable plate structure;

[0017] Figure 6 This is a schematic diagram of the oil pipeline structure;

[0018] Figure 7 This is a schematic diagram of the guide vane structure;

[0019] Figure 8 This is a schematic diagram of the spiked part;

[0020] Figure 9 This is a schematic diagram of the connecting pipe structure;

[0021] Figure 10 This is a schematic diagram of the slide plug. Detailed Implementation

[0022] The present invention will be described in detail with reference to the accompanying drawings in the embodiments of the present invention.

[0023] See Figure 1-7 A schematic diagram of an embodiment of the invention capable of automatically cleaning heat sinks is shown, further...

[0024] A transformer includes a main body 101. Multiple heat sinks 102 are welded and fixedly connected to the main body 101. Each heat sink 102 has a hollow internal structure and is connected to the interior of the main body 101. A connecting pipe 201 is welded and fixedly connected to the upper end of the main body 101. Two oil pipes 301 are welded and fixedly connected to the connecting pipe 201. A sliding plug 303 is slidably connected inside each of the two oil pipes 301. A push rod 302 is bonded and fixedly connected to the lower end of the sliding plug 303. A moving plate 401 is bolted to the lower end of the push rod 302. Multiple scrapers 402 are bolted to the moving plate 401. The multiple scrapers 402 contact the sides of the multiple heat sinks 102 respectively. The left and right ends of the connecting pipe 201 are connected to the interior of the connecting oil pipes 301 respectively. A spring 304 is fixedly connected between the sliding plug 303 and the inner wall of the oil pipe 301.

[0025] The main body 101 has a hollow structure inside. The main body 101 is used to install the iron core and coil windings. Insulating oil is poured into the main body 101. When the transformer is working, the heat is transferred to multiple heat sinks 102 through the insulating oil, and then the heat is dissipated through the multiple heat sinks 102.

[0026] When the transformer is working, the heat generated causes the insulating oil to expand. As a result, the insulating oil in the main body 101 enters the two oil pipes 301 through the connecting pipe 201. This causes the sliding plug 303 in the oil pipe 301 to slide downward under pressure, thereby driving the push rod 302 to move downward. The push rod 302 drives the moving plate 401 to move downward. The moving plate 401 drives multiple scrapers 402 to slide downward. At the same time, the spring 304 is compressed by the force.

[0027] When multiple scrapers 402 move, they can generate friction with the side of the heat sink 102, thereby scraping away the dust generated on the side of the heat sink 102. This prevents stubborn stains from accumulating on the side of the heat sink 102 after long-term use, which would affect the heat dissipation effect of the heat sink 102, reduce the cleaning difficulty for staff, and reduce the frequency of cleaning the heat sink 102.

[0028] When the temperature of the insulating oil inside the main body 101 decreases, the slide plug 303 automatically slides upward under the elastic action of the spring 304, driving multiple heat sinks 102 to move upward, thus realizing the function of reciprocating cleaning.

[0029] See Figure 8 A schematic diagram of an embodiment of the present invention that enables automatic pressure relief when the insulating oil temperature is too high is shown. Further,

[0030] Both oil pipes 301 have spikes 305 fixedly connected to their inner bottom surfaces by bolts.

[0031] When the temperature of the insulating oil inside the main body 101 is too high, the slide plug 303 will continue to slide downward. In order to prevent the main body 101 from being over-pressured and causing an explosion, the slide plug 303 in this transformer slides downward and contacts the spike 305. The spike 305 can then puncture the slide plug 303, allowing the insulating oil in the oil pipe 301 to leak through the slide plug 303, thus achieving the function of automatic pressure relief and reducing losses.

[0032] See Figure 8-10 A schematic diagram is shown of an embodiment of the present invention in which the slide 303 has a fragile property. Further,

[0033] Both slide plugs 303 are made of glass, and the outer ring of slide plug 303 is wrapped with a rubber ring, which is in contact with the inner wall of oil pipe 301.

[0034] The glass-material slide plug 303 is fragile. When the slide plug 303 comes into contact with the spike 305, the slide plug 303 is easily broken, thus achieving a rapid pressure relief effect.

[0035] The rubber ring has good sealing properties and can prevent the leakage of insulating oil during normal use.

[0036] See Figure 9 A schematic diagram of an embodiment of the present invention capable of realizing manual pressure relief is shown. Further,

[0037] Two pressure relief pipes 202 are fixedly connected to the connecting pipe 201 by bolts, and each pressure relief pipe 202 is equipped with a pressure relief valve.

[0038] When the pressure inside the main body 101 is too high and the staff is nearby, the staff can determine that the pressure inside the main body 101 is too high by observing the pressure display on the pressure relief valve. Then, by operating the pressure relief valve, the insulating oil is discharged through the two pressure relief pipes 202 to achieve the pressure relief function and further reduce the loss.

[0039] See Figure 7 A schematic diagram of an embodiment according to the present invention, which can increase the frictional force between the scraper 402 and the heat sink 102, is shown.

[0040] Rubber strips are glued to the edges of multiple scraper blades 402. The rubber strips can increase the friction between the scraper blades 402 and the heat sink 102, thereby improving the dust removal effect. At the same time, the rubber strips can protect the heat sink 102 and reduce the wear caused by friction.

[0041] See Figure 8 The diagram illustrates an embodiment of the invention for preventing insulating oil from splashing everywhere after the slip plug 303 breaks. Further,

[0042] Both oil pipes 301 have an oil drain port 306 at their lower ends.

[0043] The drain port 306 is used to drain the insulating oil in the oil pipe 301 to prevent the insulating oil from splashing everywhere after the sliding plug 303 breaks.

[0044] See Figure 7 The diagram shows an embodiment of the invention in which insulating oil discharged from oil pipe 301 is discharged along a predetermined trajectory. Further,

[0045] Both movable plates 401 are fixedly connected to guide plates 403 by bolts.

[0046] The guide plate 403 serves to guide the insulating oil, so that the insulating oil discharged from the oil pipe 301 is discharged along a prescribed trajectory, preventing the insulating oil from dripping onto the heat sink 102 and causing contamination to the heat sink 102.

[0047] See Figure 3 A schematic diagram of an embodiment of the invention in which the main body 101 can be fixed to the ground is shown. Further,

[0048] The lower end of the main body 101 is provided with two mounting ears. By inserting bolts into the two mounting ears, the main body 101 can be fixed to the ground.

[0049] See Figure 3 This illustrates an embodiment of the invention that enables the heat sink 102 to have good heat dissipation and rust prevention effects. Further,

[0050] All heat sinks 102 are made of steel, and steel heat sinks 102 have good heat dissipation and rust prevention effects.

[0051] See Figure 6 This illustrates an embodiment of the invention that enables the oil pipe 301 to possess good pressure resistance. Further,

[0052] Both oil pipes 301 are made of steel. Steel oil pipes 301 have good pressure resistance to prevent oil pipes 301 from exploding when the pressure is too high.

Claims

1. A transformer characterized by: Includes a main body (101), on which multiple heat sinks (102) are fixedly connected. Each heat sink (102) has a hollow internal structure and is connected to the interior of the main body (101). A connecting pipe (201) is fixedly connected to the upper end of the main body (101). Two oil pipes (301) are fixedly connected to the connecting pipe (201). Each oil pipe (301) has a sliding plug (303) slidably connected inside it. 3) A push rod (302) is fixedly connected to the lower end. A movable plate (401) is fixedly connected to the lower end of the push rod (302). Multiple scrapers (402) are fixedly connected to the movable plate (401). The multiple scrapers (402) contact the sides of multiple heat sinks (102) respectively. The left and right ends of the connecting pipe (201) are connected to the inside of the connecting oil pipe (301) respectively. A spring (304) is fixedly connected between the sliding plug (303) and the inner wall of the oil pipe (301).

2. A transformer according to claim 1, characterised in that: Both of the oil pipes (301) have spikes (305) fixedly connected to their inner bottom surfaces.

3. A transformer as claimed in claim 1, characterized in that: Both of the aforementioned sliding plugs (303) are made of glass, and the outer ring of the sliding plug (303) is wrapped with a rubber ring, which is in contact with the inner wall of the oil pipe (301).

4. A transformer according to claim 1, characterized in that: Two pressure relief pipes (202) are fixedly connected to the connecting pipe (201), and each pressure relief pipe (202) is equipped with a pressure relief valve.

5. A transformer according to claim 1, characterized in that: Rubber strips are bonded to the edges of each of the scrapers (402).

6. A transformer according to claim 1, characterized in that: Both of the oil pipes (301) have an oil drain port (306) at their lower ends.

7. A transformer according to claim 1, characterized in that: A guide plate (403) is fixedly connected to each of the two movable plates (401).

8. A transformer according to claim 1, characterized in that: The lower end of the main body (101) is provided with two mounting ears.

9. A transformer according to claim 1, characterized in that: All of the heat sinks (102) are made of steel.

10. A transformer according to claim 1, characterized in that: Both of the oil pipes (301) are made of steel.

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