Low-noise traction transformer cooling fan

Abstract

The utility model relates to the technical field of cooling fans, and discloses a low-noise traction transformer cooling fan which comprises a transformer outer box, a cleaning assembly is arranged in the transformer outer box, and a quick release assembly is arranged in the transformer outer box. The cleaning assembly comprises a worm, the worm is rotationally embedded in the transformer outer box, connecting columns are rotationally embedded in the two sides of the inner wall of the transformer outer box, turbines are fixedly installed on the outer surfaces of the multiple connecting columns and mesh with the worm, and dust removal rods are rotationally embedded in the two sides of the inner wall of the transformer outer box. And the bottom of the outer surface of the dust removal rod on one side is fixedly connected with the connecting column, and the problems that when an existing device is used, dust and other impurities are prone to being accumulated on a dust isolation plate, the existing device lacks a cleaning device for the dust and other impurities, the dust and other impurities are prone to blocking the dust isolation plate, and the heat dissipation efficiency of the device is affected are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of cooling fans, in particular to a low-noise cooling fan for a traction transformer. Background Art

[0002] A traction transformer is a transformer specially designed for electric traction systems. Electric traction transformers are usually used in transportation vehicles such as electric trains, trams and subways. They mainly convert the high-voltage power supply of the power system into a low-voltage power supply suitable for the electric traction system. In this way, electric vehicles can obtain the required electrical energy through the electric traction system.

[0003] 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.

[0004] China's public patent number: CN207319848U announced "A dry-type transformer cooling fan", including a transformer outer box and a support base, the support base is fixedly connected to the transformer outer box by screws, the surface of the support base is provided with fixed circular holes, and the fixed circular holes penetrate the support base and are evenly distributed in the shape of a "one", one side of the transformer outer box is symmetrically provided with a heat sink, and the heat sink is embedded in the transformer outer box, and the surface of the transformer outer box is provided with an input port. This dry-type transformer cooling fan can accurately detect the temperature change inside the transformer outer box through the MFT temperature sensor, so that the cooling fan can be driven to work and stop very accurately, and a dustproof plate is installed on one side of the heat sink, which can effectively block dust outside and prevent the transformer from being affected by dust. Finally, a warning nameplate is installed on the surface of the transformer outer box to remind others to pay attention to danger.

[0005] Although the prior art can block dust outside and prevent the transformer from being affected by dust when in use, dust and other impurities are easily accumulated on the dust shield of the prior art device when in use, and the prior art device lacks a cleaning device for dust and other impurities, which causes dust and other impurities to easily clog the dust shield, affecting the heat dissipation efficiency of the device. At the same time, the cooling fan of the prior art device is fixedly installed inside the device. When the cooling fan fails, the cooling fan cannot be quickly removed, and the transformer can only be shut down to repair the cooling fan, and the operation process is relatively cumbersome. Utility Model Content

[0006] The purpose of the utility model is to provide a low-noise traction transformer cooling fan to solve the problem that dust and other impurities are easily accumulated on the dust shield plate of the existing device in the above-mentioned background technology during use, and the existing device lacks a cleaning device for dust and other impurities, which causes dust and other impurities to easily clog the dust shield plate and affect the heat dissipation efficiency of the device. At the same time, the cooling fan of the existing device is fixedly installed inside the device. When the cooling fan fails, the cooling fan cannot be quickly removed, and the transformer can only be shut down to repair the cooling fan, and the operation process is relatively cumbersome.

[0007] In order to solve the above technical problems, the utility model provides the following technical solutions: a low-noise traction transformer cooling fan, comprising a transformer outer box, a cleaning component is arranged inside the transformer outer box, and a quick-release component is arranged inside the transformer outer box;

[0008] The cleaning assembly includes a worm, and the worm is rotatably embedded in the interior of the transformer outer box, connecting columns are rotatably embedded on both sides of the inner wall of the transformer outer box, and turbines are fixedly installed on the outer surfaces of multiple connecting columns, and multiple turbines are meshed with the worm, dust removal rods are rotatably embedded on both sides of the inner wall of the transformer outer box, and the bottom of the outer surface of one side of the dust removal rod is fixedly connected to the connecting column, and the outer surfaces of multiple dust removal rods are provided with sliders, and a motor is fixedly installed on one side of the outer surface of the transformer outer box, and the output shaft of the motor is fixedly connected to the worm;

[0009] The quick-release assembly includes a fan casing, and a plurality of limit rods are slidably embedded in the interior of the fan casing, a connecting plate is fixedly installed on the outer surfaces of the plurality of limit rods, and a push spring is fixedly installed on one side of the outer surfaces of the plurality of connecting plates, and the plurality of push springs are wound and sleeved on the outer surfaces of the limit rods, a plurality of limit columns are slidably embedded in the interior of the fan casing, and a limit spring is wound and sleeved on the outer surfaces of the plurality of limit columns, and the plurality of limit rods are slidably embedded in the interior of the transformer outer box.

[0010] Preferably, a scraper is fixedly mounted on one side of the outer surface of the plurality of sliders, fan slots are opened on both sides of the inner wall of the transformer outer box, and positioning plates are fixedly mounted on the inner walls of the plurality of fan slots near the middle.

[0011] Preferably, both sides of the outer surfaces of the fan housings are provided with connection grooves, and the connection grooves are slidably mounted on the outer surface of the positioning plate.

[0012] Preferably, a support plate is fixedly mounted inside each of the plurality of fan housings, and a fan is fixedly mounted on one side of an outer surface of each of the plurality of support plates.

[0013] Preferably, a second sound insulation protective plate is provided on one side of the outer surface of each of the fan casings, and a plurality of fixing rings are fixedly installed on the bottom of the outer surface of the transformer outer box.

[0014] Preferably, a transformer body is arranged inside the transformer outer box, a cover plate is arranged on the top of the outer surface of the transformer outer box, and a plurality of threaded rods are rotatably embedded inside the cover plate.

[0015] Preferably, the plurality of threaded rods penetrate the cover plate and are rotatably embedded in the interior of the transformer outer box, and first sound insulation protective plates are fixedly mounted on both sides of the outer surface of the transformer outer box.

[0016] Compared with the prior art, the beneficial effects achieved by the utility model are:

[0017] First, the utility model starts the motor, and the motor rotates to drive the worm to rotate. Turbines are meshed on both sides of the worm, so the worm can drive the turbine to rotate while rotating. The turbine can drive the dust removal rod connected to it to rotate through the connecting column. The outer surface of one side of the dust removal rod is provided with repeated threads. When the dust removal rod rotates, the scraper is driven to move through the slider, so that the scraper scrapes off dust and other debris on the surface of the first sound insulation protective plate to prevent dust and other debris from clogging the first sound insulation protective plate and causing the heat dissipation effect to deteriorate.

[0018] Second, the utility model presses the limit column to retract the limit column, pushes the connecting plate so that the connecting plate drives the limit rod to move, and moves the connecting plate to the other side of the limit column. At this time, the limit rod is separated from the transformer outer box and retracts to the inside of the fan casing. Release the hand pressing the limit column, and the limit spring returns to drive the limit column to reset, so that the limit column limits the connecting plate, ensuring that the limit rod is completely inside the fan casing. At this time, the fan casing can be dragged to take the fan casing out of the fan slot for inspection and maintenance of the fan. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the internal three-dimensional structure of the cleaning component of the utility model;

[0020] Figure 2 This is a schematic diagram of the internal three-dimensional structure of the quick-release assembly of the utility model;

[0021] Figure 3 It is a schematic diagram of a partially cutaway three-dimensional structure of the utility model;

[0022] Figure 4 It is a schematic diagram of the three-dimensional structure of the utility model from a side view.

[0023] Among them: 1. Transformer outer box; 2. Motor; 201. Worm; 202. Connecting column; 203. Turbine; 204. Dust removal rod; 205. Slider; 3. First sound insulation protective plate; 4. Fan housing; 401. Limit rod; 402. Connecting plate; 403. Push spring; 404. Limit column; 405. Limit spring; 5. Scraper; 6. Transformer body; 7. Cover plate; 8. Threaded rod; 9. Fixing ring; 10. Support plate; 11. Fan; 12. Connecting groove; 13. Fan groove; 14. Second sound insulation protective plate; 15. Positioning plate. DETAILED DESCRIPTION

[0024] 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.

[0025] See also Figure 1-4 , a low-noise traction transformer cooling fan, comprising a transformer outer box 1, a cleaning component is arranged inside the transformer outer box 1, and a quick-release component is arranged inside the transformer outer box 1;

[0026] The cleaning component includes a worm 201, and the worm 201 is rotatably embedded in the interior of the transformer outer box 1, and connecting columns 202 are rotatably embedded on both sides of the inner wall of the transformer outer box 1, and turbines 203 are fixedly installed on the outer surfaces of multiple connecting columns 202. Multiple turbines 203 are meshed with the worm 201, and dust removal rods 204 are rotatably embedded on both sides of the inner wall of the transformer outer box 1, and the bottom of the outer surface of one side of the dust removal rod 204 is fixedly connected to the connecting column 202, and the outer surfaces of multiple dust removal rods 204 are provided with sliders 205, and a motor 2 is fixedly installed on one side of the outer surface of the transformer outer box 1, and the output shaft of the motor 2 is fixedly connected to the worm 201;

[0027] The quick-release assembly includes a fan casing 4, and a plurality of limit rods 401 are slidably embedded inside the fan casing 4, a connecting plate 402 is fixedly installed on the outer surface of the plurality of limit rods 401, and a push spring 403 is fixedly installed on one side of the outer surface of the plurality of connecting plates 402, and the plurality of push springs 403 are all wound and sleeved on the outer surface of the limit rod 401, a plurality of limit columns 404 are slidably embedded inside the fan casing 4, and a plurality of limit columns 404 are wound and sleeved on the outer surface with a limit spring 405, and the plurality of limit rods 401 are slidably embedded inside the transformer outer box 1.

[0028] Through the above technical solution, when the outer surface of the first sound insulation protective plate 3 is heavily covered with dust and affects the heat dissipation, the motor 2 can be started, and the rotation of the motor 2 drives the worm 201 to rotate. The worm 201 is meshed with turbines 203 on both sides, so the worm 201 can drive the turbine 203 to rotate while rotating. The turbine 203 can drive the dust removal rod 204 connected thereto to rotate through the connecting column 202. The outer surface of one side of the dust removal rod 204 is provided with repeated threads. When the dust removal rod 204 rotates, it drives the scraper 5 to move through the slider 205, so that the scraper 5 scrapes off the dust and other debris on the surface of the first sound insulation protective plate 3 to prevent the dust and other debris from clogging the first sound insulation protective plate 3 and causing the heat dissipation effect to deteriorate.

[0029] Through the above technical solution, when the fan 11 needs to be removed for inspection or maintenance, the limit column 404 can be pressed to retract the limit column 404, and the connecting plate 402 can be pushed to make the connecting plate 402 drive the limit rod 401 to move, and the connecting plate 402 can be moved to the other side of the limit column 404. At this time, the limit rod 401 is separated from the transformer outer box 1 and retracted to the inside of the fan casing 4. The hand pressing the limit column 404 is released, and the limit spring 405 returns to drive the limit column 404 to reset, so that the limit column 404 limits the connecting plate 402, ensuring that the limit rod 401 is completely inside the fan casing 4. At this time, the fan casing 4 can be dragged to remove the fan casing 4 from the inside of the fan slot 13 to inspect and maintain the fan 11.

[0030] Specifically, a scraper 5 is fixedly installed on one side of the outer surface of the plurality of sliders 205 , fan slots 13 are opened on both sides of the inner wall of the transformer outer box 1 , and a positioning plate 15 is fixedly installed on the inner wall of the plurality of fan slots 13 near the middle.

[0031] Through the above technical solution, a brush is installed on the inner side of the scraper 5. The scraper 5 is moved to drive the brush to move to clean the dust and other deposits on the surface of the first sound insulation protective plate 3. The fan slot 13 accommodates the fan casing 4, and the positioning plate 15 facilitates the installation of the fan casing 4.

[0032] Specifically, both sides of the outer surfaces of the plurality of fan casings 4 are provided with connection grooves 12 , and the plurality of connection grooves 12 are slidably sleeved on the outer surface of the positioning plate 15 .

[0033] Through the above technical solution, the fan casing 4 is positioned by cooperating with the connecting groove 12 and the positioning plate 15. During installation, the connecting groove 12 is aligned with the positioning plate 15, and the fan casing 4 is pushed so that the fan casing 4 is embedded in the fan groove 13. At this time, the limit rod 401 is flush with the hole opened in the transformer outer box 1.

[0034] Specifically, the support plates 10 are fixedly installed inside the plurality of fan housings 4 , and the fans 11 are fixedly installed on one side of the outer surfaces of the plurality of support plates 10 .

[0035] Through the above technical solution, the support plate 10 supports the fan 11, and the device in the transformer outer box 1 is cooled by the fan 11. At the same time, sound insulation cotton is laid on the inner wall of the fan casing 4, and the sound insulation cotton reduces the noise generated when the fan 11 is working.

[0036] Specifically, a second sound insulation protection plate 14 is provided on one side of the outer surface of each of the plurality of fan casings 4 , and a plurality of fixing rings 9 are fixedly installed on the bottom of the outer surface of the transformer outer box 1 .

[0037] Through the above technical solution, the interior of the second sound insulation protective plate 14 is filled with sound insulation material, so that the second sound insulation protective plate 14 protects the fan 11 while reducing the noise generated by the fan 11. The fixing ring 9 facilitates fixing the device.

[0038] Specifically, a transformer body 6 is disposed inside the transformer outer box 1 , a cover plate 7 is disposed on the top of the outer surface of the transformer outer box 1 , and a plurality of threaded rods 8 are rotatably embedded inside the cover plate 7 .

[0039] Through the above technical solution, the cover plate 7 protects the transformer body 6, and a ventilation slot is provided inside the cover plate 7 so that the airflow generated by the fan 11 can be discharged.

[0040] Specifically, a plurality of threaded rods 8 penetrate the cover plate 7 and are rotatably embedded in the transformer outer box 1 , and first sound insulation protection plates 3 are fixedly installed on both sides of the outer surface of the transformer outer box 1 .

[0041] Through the above technical solution, the cover plate 7 is fixed to the transformer outer box 1 by the threaded rod 8, and the interior of the first sound insulation protective plate 3 is filled with sound insulation material, which can reduce the noise generated when the fan 11 is working, and the first sound insulation protective plate 3 allows the airflow to enter the transformer outer box 1 while intercepting impurities such as dust, thereby preventing impurities such as dust from entering the transformer outer box 1.

[0042] During use, when dust accumulates too much on the outer surface of the first sound insulation protective plate 3 and affects the heat dissipation, the motor 2 can be started, and the rotation of the motor 2 drives the worm 201 to rotate. Turbines 203 are meshed on both sides of the worm 201, so the worm 201 can drive the turbine 203 to rotate while rotating. The turbine 203 can drive the dust removal rod 204 connected thereto to rotate through the connecting column 202. The outer surface of the dust removal rod 204 on one side is provided with repeated threads. The dust removal rod 204 drives the scraper 5 to move through the slider 205 while rotating, so that the scraper 5 scrapes off the dust and other debris on the surface of the first sound insulation protective plate 3 to prevent dust and other debris from clogging the first sound insulation protective plate 3 and causing the heat dissipation effect to deteriorate. When the fan 11 needs to be removed for inspection or maintenance, the limit column 404 can be pressed to retract the limit column 404, and the connecting plate 402 can be pushed to make the connecting plate 4 02 drives the limit rod 401 to move and moves the connecting plate 402 to the other side of the limit column 404. At this time, the limit rod 401 is separated from the transformer outer box 1 and retracted into the inside of the fan casing 4. Release the hand pressing the limit column 404, and the limit spring 405 returns to drive the limit column 404 to reset, so that the limit column 404 limits the connecting plate 402, ensuring that the limit rod 401 is completely inside the fan casing 4. At this time, the fan casing 4 can be dragged to remove the fan casing 4 from the inside of the fan slot 13 to inspect and maintain the fan 11. After the inspection and maintenance is completed, the fan casing 4 can be placed in the fan slot 13, and the limit column 404 is pressed again. At this time, the push spring 403 is reset to push the connecting plate 402 to move, so that the limit rod 401 is embedded in the hole reserved in the transformer outer box 1, and the fan casing 4 is fixed in the transformer outer box 1.

[0043] 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 low-noise traction transformer cooling fan, comprising a transformer outer box (1), characterized in that: A cleaning component is provided inside the transformer outer box (1), and a quick-release component is provided inside the transformer outer box (1); The cleaning component comprises a worm (201), and the worm (201) is rotatably embedded in the interior of the transformer outer box (1), connecting columns (202) are rotatably embedded on both sides of the inner wall of the transformer outer box (1), and turbines (203) are fixedly installed on the outer surfaces of multiple connecting columns (202), and multiple turbines (203) are meshed with the worm (201), and dust removal rods (204) are rotatably embedded on both sides of the inner wall of the transformer outer box (1), and the bottom of the outer surface of one side of the dust removal rod (204) is fixedly connected to the connecting column (202), and the outer surfaces of multiple dust removal rods (204) are provided with sliders (205), and a motor (2) is fixedly installed on one side of the outer surface of the transformer outer box (1), and the output shaft of the motor (2) is fixedly connected to the worm (201); The quick-release assembly comprises a fan housing (4), and a plurality of limit rods (401) are slidably embedded inside the fan housing (4), a connecting plate (402) is fixedly mounted on the outer surfaces of the plurality of limit rods (401), and a push spring (403) is fixedly mounted on one side of the outer surfaces of the plurality of connecting plates (402), and the plurality of push springs (403) are wound around the outer surfaces of the limit rods (401), a plurality of limit columns (404) are slidably embedded inside the fan housing (4), and a limit spring (405) is wound around the outer surfaces of the plurality of limit columns (404), and the plurality of limit rods (401) are slidably embedded inside the transformer outer box (1).

2. A low-noise traction transformer cooling fan according to claim 1, characterized in that: A scraper (5) is fixedly mounted on one side of the outer surface of the plurality of sliders (205), fan slots (13) are provided on both sides of the inner wall of the transformer outer box (1), and positioning plates (15) are fixedly mounted on the inner walls of the plurality of fan slots (13) near the middle.

3. A low-noise traction transformer cooling fan according to claim 1, characterized in that: Both sides of the outer surfaces of the plurality of fan casings (4) are provided with connection grooves (12), and the plurality of connection grooves (12) are slidably mounted on the outer surface of the positioning plate (15).

4. A low-noise traction transformer cooling fan according to claim 1, characterized in that: A support plate (10) is fixedly mounted inside each of the plurality of fan housings (4), and a fan (11) is fixedly mounted on one side of the outer surface of each of the plurality of support plates (10).

5. A low-noise traction transformer cooling fan according to claim 1, characterized in that: A second sound insulation protection plate (14) is provided on one side of the outer surface of each of the plurality of fan casings (4), and a plurality of fixing rings (9) are fixedly mounted on the bottom of the outer surface of the transformer outer box (1).

6. A low-noise traction transformer cooling fan according to claim 1, characterized in that: A transformer body (6) is arranged inside the transformer outer box (1), a cover plate (7) is arranged on the top of the outer surface of the transformer outer box (1), and a plurality of threaded rods (8) are rotatably embedded inside the cover plate (7).

7. A low-noise traction transformer cooling fan according to claim 6, characterized in that: The plurality of threaded rods (8) penetrate the cover plate (7) and are rotatably embedded in the interior of the transformer outer box (1), and first sound insulation protection plates (3) are fixedly mounted on both sides of the outer surface of the transformer outer box (1).

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