Cooling device for traction transformer of motor train unit

Abstract

The utility model relates to the technical field of cooling devices, and discloses a motor train unit traction transformer cooling device which comprises a transformer shell, cooling assemblies are arranged on the two sides of the outer surface of the transformer shell, and a dust removal assembly is arranged in the transformer shell. The cooling assembly comprises fan grooves, the fan grooves are fixedly formed in the two sides of the outer surface of the transformer shell, first fans are slidably embedded in the multiple fan grooves, protection plates are arranged at the tops of the outer surfaces of the multiple fan grooves, and threaded rods are embedded in the multiple protection plates in a threaded mode; and ventilation openings are formed in the two sides of the inner wall of the transformer shell, so that the problems that when an existing device is used, a push plate needs to be manually pressed to cool a transformer, the transformer cannot be cooled for a long time, and the cooling effect is poor are solved. And the transformer is easy to fail due to over-high temperature.

Description

Technical Field

[0001] The utility model relates to the technical field of cooling devices, in particular to a cooling device for a traction transformer of an EMU. Background Art

[0002] The traction transformer is a key device used to provide electric traction in railway transportation. It is mainly used to convert high-voltage AC power into a low voltage suitable for the electric traction system. The traction transformer plays a key role in the electrified railway system, and its performance directly affects the traction capacity and operating efficiency of the train.

[0003] The transformer cooling device of traction transformer is a device used to control and maintain the internal temperature of the transformer to ensure that the transformer can effectively dissipate heat during operation to prevent overheating and damage.

[0004] The traction transformer cooling fan is a device used to dissipate heat. The traction transformer will generate a certain amount of heat when working. The traction transformer cooling fan ensures the normal operation of the traction transformer and prevents overheating. The traction transformer cooling fan plays an important role in the normal operation of the transformer, effectively controlling the temperature of the transformer and ensuring its reliability and stability.

[0005] China Patent Announcement No.: CN209641476U announced "A Cooling Device for EMU Traction Transformer". Aiming at the problem that the existing EMU traction transformer will generate a lot of heat after working for a long time, and this heat is not easy to dissipate, which affects the service life of the transformer, the following scheme is proposed, which includes a transformer body, a displacement plate is slidably installed in the transformer body, and two plug plates are fixedly installed on the top of the displacement plate. The top of the transformer body is provided with two first heat dissipation ports, and the plug plate is clamped with the first heat dissipation ports. A vertical pole is welded on the top of the plug plate, and the top of the vertical pole extends to the top of the transformer body. The same push plate located above the transformer body is welded between the two vertical poles. The utility model has good practicality, can open the first heat dissipation port and the second heat dissipation port at the same time, cool the transformer body, and is easy to operate.

[0006] When the prior art is in use, although the transformer body can be cooled and the operation is simple, the prior art device needs to manually press the push plate to cool the transformer when in use, and the transformer cannot be cooled for a long time, which may easily cause the transformer to malfunction due to overtemperature. At the same time, the prior art device discharges internal air through the heat dissipation port, and the exhaust port is prone to accumulation of debris and blockage of the exhaust port after long-term use. The prior art device lacks a cleaning device for the exhaust port, and other tools need to be used to clean the exhaust port during use, and the use process is relatively cumbersome. Utility Model Content

[0007] The utility model aims to provide a cooling device for a traction transformer of an EMU, so as to solve the problem that the existing device in the above-mentioned background technology needs to manually press a push plate to cool the transformer when in use, and cannot cool the transformer for a long time, which easily causes the transformer to malfunction due to overtemperature. At the same time, the existing device discharges internal air through a heat dissipation port, and the exhaust port is prone to accumulation of debris and clogging of the exhaust port after long-term use. The existing device lacks a cleaning device for the exhaust port, and other tools need to be used to clean the exhaust port when in use, and the use process is relatively cumbersome.

[0008] In order to solve the above technical problems, the utility model provides the following technical solutions: a cooling device for a traction transformer of an EMU, comprising a transformer housing, cooling components are arranged on both sides of the outer surface of the transformer housing, and a dust removal component is arranged inside the transformer housing;

[0009] The cooling component includes a fan slot, and the fan slot is fixedly installed on both sides of the outer surface of the transformer shell, a plurality of the fan slots are slidably embedded with a first fan, a plurality of the fan slots are provided with a protective plate on the top of the outer surface of the fan slots, and a plurality of the protective plates are threadedly embedded with a threaded rod, and a plurality of the threaded rods penetrate the protective plates and are threadedly embedded in the fan slots, and ventilation holes are opened on both sides of the inner wall of the transformer shell, and a support plate is fixedly installed in the ventilation hole on one side, and a second fan is fixedly installed on one side of the outer surface of the support plate;

[0010] The dust removal assembly includes multiple columns, and the multiple columns are fixedly installed inside the vent, the outer surfaces of the multiple columns near the top are slidably sleeved with sliders, and the bottoms of the outer surfaces of the multiple sliders are fixedly installed with return springs, and the multiple return springs are wrapped and sleeved on the outer surfaces of the columns, and dustproof plates are fixedly installed on both sides of the outer surface of the transformer casing.

[0011] Preferably, a scraper is fixedly mounted on one side of the outer surface of each of the plurality of sliding blocks.

[0012] Preferably, a transformer body is fixedly mounted inside the transformer housing, and connecting plates are fixedly mounted on both sides of the outer surface of the transformer body.

[0013] Preferably, fixing rods are threadedly embedded inside the plurality of connection plates, and heat sinks are slidably sleeved on the outer surfaces of the plurality of fixing rods, and the sides of the plurality of heat sinks away from the transformer body are slidably embedded inside the transformer housing.

[0014] Preferably, an inner plate is fixedly mounted on the inner wall of the transformer housing on one side close to the support plate, and a plurality of bases are fixedly mounted on the bottom of the outer surface of the transformer housing.

[0015] Preferably, a sealing plate is provided on the top of the outer surface of the transformer housing, and a plurality of connecting rods are embedded in the internal threads of the sealing plate.

[0016] Preferably, the plurality of connecting rods all penetrate the sealing plate and are threadedly embedded in the transformer casing.

[0017] Compared with the prior art, the beneficial effects achieved by the utility model are:

[0018] First, the utility model provides heat sinks on both sides of the transformer body, which dissipate heat for the transformer body to prevent the transformer body from malfunctioning due to over-high temperature. At the same time, the first fan can be started to speed up the air circulation around the heat sink to keep the heat sink within a relatively low temperature range. When the first fan fails, the first fan can be dragged to be taken out from the inside of the fan slot for replacement to avoid affecting the working efficiency of the transformer body. When necessary, the second fan can be started to pump external air into the inside of the transformer casing to prevent the transformer body from malfunctioning due to excessive temperature in the transformer casing.

[0019] Second, the utility model drags the scraper downward to clean the dust and other deposits on the surface of the dustproof plate to prevent the accumulation of dust and other impurities and clogging the dustproof plate. The scraper can drive the slider to move while moving, so that the slider squeezes the column. When the scraper moves to the bottom of the dustproof plate, you can release your hand, and the reset spring resets the slider to reset, so as to prevent the scraper from blocking the dustproof plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a side view of the three-dimensional structure of the utility model;

[0021] Figure 2 It is a schematic diagram of the internal three-dimensional structure of part of the utility model;

[0022] Figure 3 This is a schematic diagram of the internal three-dimensional structure of the utility model;

[0023] Figure 4 It is a schematic diagram of the three-dimensional structure of the transformer body in a side view of the utility model.

[0024] Among them: 1. Transformer shell; 2. Ventilation port; 201. Dustproof plate; 202. Slider; 203. Column; 204. Return spring; 3. Sealing plate; 4. Fan slot; 401. Protective plate; 402. First fan; 403. Threaded rod; 404. Support plate; 405. Second fan; 5. Heat sink; 6. Transformer body; 7. Inner plate; 8. Base; 9. Connecting plate; 10. Fixing rod; 11. Connecting rod; 12. Scraper. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-4 , a cooling device for a traction transformer of an EMU, comprising a transformer housing 1, cooling components are arranged on both sides of the outer surface of the transformer housing 1, and a dust removal component is arranged inside the transformer housing 1;

[0027] The cooling component includes a fan slot 4, and the fan slot 4 is fixedly installed on both sides of the outer surface of the transformer housing 1, and a first fan 402 is slidably embedded in the interior of multiple fan slots 4, and a protective plate 401 is provided on the top of the outer surface of multiple fan slots 4, and a threaded rod 403 is threadedly embedded in the interior of the multiple protective plates 401, and the multiple threaded rods 403 penetrate the protective plates 401 and are threadedly embedded in the fan slot 4, and ventilation holes 2 are opened on both sides of the inner wall of the transformer housing 1, and a support plate 404 is fixedly installed in the interior of the ventilation hole 2 on one side, and a second fan 405 is fixedly installed on one side of the outer surface of the support plate 404;

[0028] The dust removal assembly includes multiple columns 203, and the multiple columns 203 are fixedly installed inside the vent 2. The outer surfaces of the multiple columns 203 near the top are slidably sleeved with sliders 202, and the bottoms of the outer surfaces of the multiple sliders 202 are fixedly installed with return springs 204. The multiple return springs 204 are wrapped and sleeved on the outer surfaces of the columns 203, and dustproof plates 201 are fixedly installed on both sides of the outer surface of the transformer casing 1.

[0029] Through the above technical solution, heat sinks 5 are provided on both sides of the transformer body 6, and the heat sinks 5 dissipate heat for the transformer body 6 to prevent the transformer body 6 from malfunctioning due to over-high temperature. At the same time, the first fan 402 can be started to speed up the air circulation around the heat sink 5 to keep the heat sink 5 within a relatively low temperature range. When the first fan 402 fails, the first fan 402 can be dragged to be taken out from the inside of the fan slot 4 for replacement to avoid affecting the working efficiency of the transformer body 6. When necessary, the second fan 405 can be started to pump external air into the inside of the transformer casing 1 to prevent the temperature inside the transformer casing 1 from being too high and causing the transformer body 6 to malfunction.

[0030] Through the above technical solution, when the dustproof plate 201 needs to be cleaned, the scraper 12 can be dragged downward, and the scraper 12 cleans the dust and other deposits on the surface of the dustproof plate 201 to prevent the accumulation of dust and other impurities and clogging the dustproof plate 201. The scraper 12 can drive the slider 202 to move while moving, so that the slider 202 squeezes the column 203. When the scraper 12 moves to the bottom of the dustproof plate 201, you can release your hand, and the reset spring 204 resets and pushes the slider 202 to reset, so as to prevent the scraper 12 from blocking the dustproof plate 201.

[0031] Specifically, a scraper 12 is fixedly mounted on one side of the outer surface of each of the plurality of sliding blocks 202 .

[0032] Through the above technical solution, the scraper 12 is used to clean the dust and other deposits on the surface of the dustproof plate 201.

[0033] Specifically, a transformer body 6 is fixedly installed inside the transformer housing 1 , and connecting plates 9 are fixedly installed on both sides of the outer surface of the transformer body 6 .

[0034] Through the above technical solution, the connecting plate 9 supports the fixing rod 10 so that the fixing rod 10 limits the heat dissipation plate 5 .

[0035] Specifically, the interior of the plurality of connection plates 9 is threadedly embedded with fixing rods 10, and the outer surfaces of the plurality of fixing rods 10 are slidably sleeved with heat dissipation plates 5, and the sides of the plurality of heat dissipation plates 5 away from the transformer body 6 are slidably embedded in the interior of the transformer housing 1.

[0036] Through the above technical solution, the heat sink 5 is in close contact with the transformer body 6, so that the heat sink 5 dissipates heat for the transformer body 6, and the transformer body 6 is kept within a healthy working range. When necessary, the fixing rod 10 can be rotated to separate the heat sink 5 from the transformer body 6 and replace the heat sink 5.

[0037] Specifically, an inner plate 7 is fixedly installed on the inner wall of the transformer housing 1 on one side close to the support plate 404 , and a plurality of bases 8 are fixedly installed on the bottom of the outer surface of the transformer housing 1 .

[0038] Through the above technical solution, the inner plate 7 protects the second fan 405 to prevent foreign matter from entering the vent 2 and causing damage to the second fan 405, and the base 8 provides support for the device.

[0039] Specifically, a sealing plate 3 is provided on the top of the outer surface of the transformer housing 1 , and a plurality of connecting rods 11 are embedded in the inner threads of the sealing plate 3 .

[0040] Through the above technical solution, the sealing plate 3 protects the transformer body 6 to prevent the transformer body 6 from being damaged.

[0041] Specifically, the plurality of connecting rods 11 penetrate the sealing plate 3 and are threadedly embedded in the transformer housing 1 .

[0042] Through the above technical solution, the sealing plate 3 is connected to the transformer housing 1 through the connecting rod 11.

[0043] When in use, heat sinks 5 are provided on both sides of the transformer body 6, and the heat sinks 5 dissipate heat for the transformer body 6 to prevent the transformer body 6 from malfunctioning due to over-temperature. At the same time, the first fan 402 can be started to speed up the air circulation around the heat sink 5 to keep the heat sink 5 within a relatively low temperature range. When the first fan 402 fails, the first fan 402 can be dragged to be taken out of the fan slot 4 for replacement to avoid affecting the working efficiency of the transformer body 6. When necessary, the second fan 405 can be started to pump external air to The inside of the transformer casing 1 can prevent the transformer body 6 from malfunctioning due to excessively high temperature inside the transformer casing 1. When the dustproof plate 201 needs to be cleaned, the scraper 12 can be dragged downward. The scraper 12 cleans the dust and other deposits on the surface of the dustproof plate 201 to prevent the accumulation of dust and other impurities and clogging the dustproof plate 201. The scraper 12 can drive the slider 202 to move while moving, so that the slider 202 squeezes the column 203. When the scraper 12 moves to the bottom of the dustproof plate 201, you can release your hand, and the reset spring 204 resets and pushes the slider 202 to reset, so as to prevent the scraper 12 from blocking the dustproof plate 201.

[0044] Although the 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 thereof, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cooling device for a traction transformer of an EMU, comprising a transformer housing (1), characterized in that: Both sides of the outer surface of the transformer housing (1) are provided with cooling components, and the interior of the transformer housing (1) is provided with a dust removal component; The cooling component comprises a fan slot (4), and the fan slot (4) is fixedly installed on both sides of the outer surface of the transformer housing (1), a first fan (402) is slidably embedded in the interior of a plurality of the fan slots (4), a protective plate (401) is provided on the top of the outer surface of the plurality of the fan slots (4), and a threaded rod (403) is threadedly embedded in the interior of the plurality of the protective plates (401), and the plurality of threaded rods (403) penetrate the protective plates (401) and are threadedly embedded in the interior of the fan slot (4), a vent (2) is provided on both sides of the inner wall of the transformer housing (1), and a support plate (404) is fixedly installed in the interior of one side of the vent (2), and a second fan (405) is fixedly installed on one side of the outer surface of the support plate (404); The dust removal assembly comprises a plurality of columns (203), and the plurality of columns (203) are fixedly installed inside the vent (2), the outer surfaces of the plurality of columns (203) near the top are slidably sleeved with sliders (202), and the bottoms of the outer surfaces of the plurality of sliders (202) are fixedly installed with return springs (204), and the plurality of return springs (204) are wound and sleeved on the outer surfaces of the columns (203), and dustproof plates (201) are fixedly installed on both sides of the outer surface of the transformer housing (1).

2. The EMU traction transformer cooling device according to claim 1, characterized in that: A scraper (12) is fixedly mounted on one side of the outer surface of each of the plurality of sliding blocks (202).

3. The EMU traction transformer cooling device according to claim 1, characterized in that: A transformer body (6) is fixedly mounted inside the transformer housing (1), and connecting plates (9) are fixedly mounted on both sides of the outer surface of the transformer body (6).

4. The EMU traction transformer cooling device according to claim 3, characterized in that: A fixing rod (10) is threadedly embedded inside the plurality of connection plates (9), and a heat sink (5) is slidably sleeved on the outer surface of the plurality of fixing rods (10), and the sides of the plurality of heat sinks (5) away from the transformer body (6) are slidably embedded inside the transformer housing (1).

5. The EMU traction transformer cooling device according to claim 1, characterized in that: An inner plate (7) is fixedly mounted on the inner wall of the transformer housing (1) on one side close to the support plate (404), and a plurality of bases (8) are fixedly mounted on the bottom of the outer surface of the transformer housing (1).

6. The EMU traction transformer cooling device according to claim 1, characterized in that: A sealing plate (3) is provided on the top of the outer surface of the transformer housing (1), and a plurality of connecting rods (11) are embedded in the inner threads of the sealing plate (3).

7. The EMU traction transformer cooling device according to claim 6, characterized in that: The plurality of connecting rods (11) all penetrate the sealing plate (3) and are threadedly embedded in the interior of the transformer housing (1).

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