Cooling device for a transformer

Abstract

This invention relates to the field of transformer cooling technology, specifically disclosing a cooling device for a transformer. The device includes a transformer, heat sinks on the sidewalls of the transformer, a cooler connected to the bottom of the heat sinks, a fan at the bottom of the cooler, and a diversion port protruding from the top of the cooler, corresponding to the gaps in the heat sinks. A connecting opening is formed in the middle of the heat sink, and a cleaning plate is hinged to the middle of the connecting opening. Ventilation openings are formed near both ends of the cleaning plate, and deflection plates are hinged to the middle of the ventilation openings. The cleaning plate, with its two ends bent in opposite directions, allows rotation even when both ends are simultaneously subjected to airflow. Simultaneously, the deflection plates in the connecting openings can open and close according to direction, allowing airflow on one side to pass without affecting the overall rotation of the cleaning plate. This ensures stable cleaning of the sides of the heat sink, preventing the accumulation of dust and impurities.

Description

Technical Field

[0001] This invention relates to the field of transformer cooling technology, and more specifically, to a cooling device for transformers. Background Technology

[0002] Transformer cooling refers to the structure that rapidly exchanges the heat generated during transformer operation to achieve cooling.

[0003] Existing transformer cooling systems typically employ heat sinks composed of several spaced-apart fins protruding from the surface. Heat is transferred more quickly through the gaps between the fins, and then exchanged with the outside air to achieve cooling. To further accelerate cooling, a fan is installed at the bottom of the heat sink to actively generate airflow that blows into the gaps between the fins, carrying away heat. However, with existing fans, the small gaps between the fins prevent a significant amount of airflow from entering the gaps. Furthermore, as the airflow rises, it draws in dust and particulate matter from the surrounding air, which then adheres to the sides of the heat sink, reducing its cooling efficiency. Summary of the Invention

[0004] The purpose of this invention is to provide a cooling device for transformers, which solves the problem that when a transformer uses a fan to actively generate airflow to cool the heat sink, dust and particulate impurities are drawn into the gaps of the heat sink and adhere to the side of the heat sink, thus affecting the heat dissipation efficiency of the heat sink.

[0005] This invention is achieved through the following technical solution: This invention provides a cooling device for a transformer, including a transformer, a heat sink provided on the side wall of the transformer, a cooler connected to the bottom of the heat sink, a fan provided at the bottom of the cooler, a diversion port protruding from the top of the cooler, the diversion port corresponding to the gap of the heat sink, a connecting opening in the middle of the heat sink, a cleaning plate hinged to the middle of the connecting opening, ventilation openings near both ends of the cleaning plate, and a deflection plate hinged to the middle of the ventilation opening.

[0006] Preferably, the cleaning plate is curved in opposite directions near both ends.

[0007] Preferably, the cleaning plate further includes a hinge shaft, abutment groove, and cleaning brushes. The hinge shaft is provided in the middle of the cleaning plate, the abutment groove is opened at one end of the ventilation opening, and the cleaning brushes are hinged to both ends of the cleaning plate.

[0008] Preferably, the cleaning plate is connected to the connection opening via a central hinge shaft, and the abutment groove engages with one end of the deflection plate.

[0009] Preferably, the hinge shaft of the cleaning brush hinged cleaning plate is provided with a torsion spring.

[0010] Preferably, the diversion port is a series of protrusions located on the top of the cooler.

[0011] Preferably, the cooler further includes a sliding wall, a discharge groove, a sliding ramp, and a triangular protrusion. The sliding wall is disposed on the side wall of the diversion port, the discharge groove is opened at the top of the cooler, the sliding ramp is disposed at the bottom of the middle part of the discharge groove, and the triangular protrusion is opened at the top of the cooler.

[0012] Preferably, the sliding wall is a conical surface of the diversion port sidewall, and the discharge grooves are opened on both sides of the diversion port at the top of the cooler.

[0013] Preferably, the triangular protrusion is located in the groove on the back of the top outlet of the cooler, and the two sides of the triangular protrusion are connected to the discharge groove.

[0014] Preferably, the deflection plate is bent to match the curved portions near both ends of the cleaning plate.

[0015] The technical solution of the present invention has at least the following advantages and beneficial effects: 1. The cleaning plate, which is bent in opposite directions at both ends of the device, can still rotate even when both ends are blown by airflow. At the same time, the deflection plates in the openings at both ends can also open and close according to the direction, allowing airflow to pass through on one side without affecting the overall rotation of the cleaning plate. This ensures stable cleaning of the side of the heat sink and prevents dust and impurities from adhering.

[0016] 2. The device is also equipped with a discharge groove, which collects and discharges particulate impurities swept down by the rotating cleaning plate, so that they do not fall and accumulate on the top of the cooler, causing secondary pollution when the airflow is blown out. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0018] Figure 2 This is a side view of the transformer structure of the present invention.

[0019] Figure 3 This is a front view structural schematic diagram of the cooler of the present invention.

[0020] Figure 4 This is a side view cross-sectional structural diagram of the cooler of the present invention.

[0021] Figure 5 This is a front view cross-sectional structural diagram of the heat sink and cleaning plate of the present invention.

[0022] Figure 6For the present invention Figure 5 Enlarged diagram of point A in the middle.

[0023] Reference numerals: 1-Transformer, 2-Heat sink, 201-Cleaning plate, 2011-Hinge shaft, 2012-Ventilation opening, 2013-Deflection plate, 2014-Abutting groove, 2015-Cleaning brush, 202-Connection opening, 3-Cooler, 301-Fan, 302-Diverter port, 3021-Sliding wall, 303-Discharge groove, 3031-Sliding ramp, 3032-Triangular protrusion. Detailed Implementation

[0024] The following is combined with Figures 1 to 6 The present invention will be described in detail below.

[0025] A cooling device for a transformer includes a transformer 1. A heat sink 2 is provided on the side wall of the transformer 1. A cooler 3 is connected to the bottom of the heat sink 2. A fan 301 is provided at the bottom of the cooler 3. A diversion port 302 is provided on the top of the cooler 3, which corresponds to the gap of the heat sink 2. A connecting opening 202 is provided in the middle of the heat sink 2. A cleaning plate 201 is hinged to the middle of the connecting opening 202. Ventilation openings 2012 are provided near both ends of the cleaning plate 201. A deflection plate 2013 is hinged to the middle of the ventilation opening 2012.

[0026] First, an upward-blowing cooler 3 is installed at the bottom of the heat sink 2. The fan 301 at the bottom of the cooler 3 generates airflow, which enters the gaps between the heat sinks 2 to accelerate the removal of heat from the heat sinks 2 and speed up the cooling of the heat sink 2.

[0027] When the airflow generated by the fan 301 blows into the gaps of the heat sink 2 through the cooler 3, the airflow will be blown out through several branch ports 302 on the top of the cooler 3. Because the several branch ports 302 correspond to the gaps in the heat sink 2, the airflow generated by the fan 301 will accurately enter the air in the heat sink 2, making the cooling more efficient. Otherwise, because the heat sink 2 is too dense, most of the blown airflow will not enter the gaps in the heat sink 2, thus reducing the cooling effect.

[0028] Furthermore, the cleaning plate 201 is curved in opposite directions near both ends. The cleaning plate 201 also includes a hinge shaft 2011, abutment groove 2014, and cleaning brush 2015. The hinge shaft 2011 is provided in the middle of the cleaning plate 201. The abutment groove 2014 is opened at one end of the ventilation opening 2012. The cleaning brush 2015 is hinged to both ends of the cleaning plate 201. The cleaning plate 201 is connected to the connection opening 202 through the middle hinge shaft 2011. The abutment groove 2014 cooperates with one end of the deflection plate 2013. The hinge shaft of the cleaning brush 2015 is provided with a torsion spring. The diversion port 302 is provided with several protrusions on the top of the cooler 3.

[0029] When the airflow is concentrated and blown into the gap of the heat sink 2, the airflow will impact the bottom of the cleaning plate 201, thereby causing the cleaning plate 201 to rotate along the connection opening 202. At the same time, the rotation of the cleaning plate 201 is achieved through the hinge shaft 2011 in the middle. When the cleaning plate 201 rotates, it will sweep the side of the heat sink 2 closest to both sides of the connection heat sink 2. When the two ends of the cleaning plate 201 rotate and approach the side of the heat sink 2, the cleaning brush 2015 at one end will contact the side of the heat sink 2 and sweep it to remove the dust that is carried upward by the airflow and attached to the surface of the heat sink 2. To prevent excessive adhesion and thus reduce the heat conduction efficiency of the heat sink 2, the cleaning brush 2015 is connected via a hinge shaft with a torsion spring. This ensures that the initial state of the cleaning brush 2015 is horizontally parallel. As the cleaning plate 201 rotates, the brush 2015 deflects due to the constant approaching and separation from the side of the heat sink 2. This friction causes the cleaning brush 2015 to follow the rotation of the cleaning plate 201, adapting to the changing distance between the cleaning plate 201 and the side of the heat sink 2 during rotation. This ensures continuous contact with the side of the heat sink 2 and increases the cleaning area.

[0030] Meanwhile, the cleaning plate 201 itself is curved in opposite directions near both ends. The curved parts of the cleaning plate 201 near both ends are respectively located in the gaps of the heat sink 2. When the diversion port 302 blows into the cleaning plate 201 in the two gaps of the heat sink 2, the downward curved part of the cleaning plate 201 is subjected to greater airflow impact, while the upward curved part guides the airflow to a certain extent, resulting in less airflow impact than the downward curved part. Therefore, when both ends of the cleaning plate 201 are blown by the upward airflow, the downward curved part will be blown to rotate along the hinge axis 2011. When the cleaning plate 201 rotates, the side of the heat sink 2 is cleaned by the cleaning brush 2015.

[0031] Furthermore, connection openings 202 are respectively provided near both ends of the cleaning plate 201. Deflection plates 2013 are connected to the connection openings 202. When the part of the deflection plate 2013 connected to it bends downward, the top of one end of the deflection plate 2013 will fit into the abutment groove 2014. Therefore, when the airflow blows upward, it will apply upward pressure to the deflection plate 2013. Because it is fitted into the abutment groove 2014, the deflection plate 2013 will remain in contact with the abutment groove 2014, so that the deflection plate 2013 will block the connection opening 202 of the downward bend, allowing the airflow to blow normally onto the cleaning plate 201 and drive it.

[0032] The upward-curved deflector plate 2013 is pushed upward by the airflow. Meanwhile, the abutment groove 2014 is located below one end of the deflector plate 2013, so it does not restrict the deflector plate 2013. Therefore, when the airflow blows upward, it will deflect the deflector plate 2013, allowing the airflow to flow through the open connection opening 202, thereby reducing the thrust generated by the airflow. When the two ends of the cleaning plate 201 are located in the two gaps of the heat sink 2 and are blown upward at the same time, it will not affect the rotation of the cleaning plate 201.

[0033] Furthermore, the cooler 3 also includes a sliding wall 3021, a discharge groove 303, a sliding inclined surface 3031, and a triangular protrusion 3032. The sliding wall 3021 is disposed on the side wall of the diversion port 302. The discharge groove 303 is opened at the top of the cooler 3. The sliding inclined surface 3031 is disposed at the bottom of the middle part of the discharge groove 303. The triangular protrusion 3032 is opened at the top of the cooler 3. The sliding wall 3021 is a conical surface of the side wall of the diversion port 302. The discharge groove 303 is opened on both sides of the diversion port 302 at the top of the cooler 3. The triangular protrusion 3032 is located in the groove on the back of the diversion port 302 at the top of the cooler 3, and the two sides of the triangular protrusion 3032 are connected to the discharge groove 303. The deflection plate 2013 is bent to cooperate with the arc-shaped part near both ends of the cleaning plate 201.

[0034] Finally, most of the dust and impurities swept away are blown away by the airflow, while a small portion of particulate impurities fall to the top of the cooler 3. Because the diversion port 302 continuously blows out airflow, they will not fall into the interior of the cooler 3, but will fall onto the sliding wall 3021. The inclined surface of the sliding wall 3021 allows the particulate impurities to slide into the discharge groove 303. They then slide directly out of the cooler 3 through the sliding inclined surface 3031 of the discharge groove 303, preventing them from accumulating and causing secondary pollution due to the airflow. At the same time, the part that falls behind the diversion port 302 will slide to the location where the triangular protrusion 3032 is set, and slide through the inclined surface of the triangular protrusion 3032. Because the two sides of the triangular protrusion 3032 are connected to the discharge groove 303, they will slide into the discharge groove 303 and be discharged, thus preventing the particulate impurities from accumulating on the back of the diversion port 302.

[0035] The following is a specific implementation process of the present invention. First, an upward-blowing cooler 3 is installed at the bottom of the heat sink 2. The airflow is generated by the fan 301 at the bottom of the cooler 3 and enters the gaps of the heat sink 2 to accelerate the removal of heat between the heat sinks 2 and accelerate the cooling of the heat sink 2.

[0036] When the airflow generated by the fan 301 blows into the gaps of the heat sink 2 through the cooler 3, the airflow will be blown out through several branch ports 302 on the top of the cooler 3. Because the several branch ports 302 correspond to the gaps in the heat sink 2, the airflow generated by the fan 301 will accurately enter the air in the heat sink 2, making the cooling more efficient. Otherwise, because the heat sink 2 is too dense, most of the blown airflow will not enter the gaps in the heat sink 2, thus reducing the cooling effect.

[0037] When the airflow is concentrated and blown into the gap of the heat sink 2, the airflow will impact the bottom of the cleaning plate 201, thereby causing the cleaning plate 201 to rotate along the connection opening 202. At the same time, the rotation of the cleaning plate 201 is achieved through the hinge shaft 2011 in the middle. When the cleaning plate 201 rotates, it will sweep the side of the heat sink 2 closest to both sides of the connection heat sink 2. When the two ends of the cleaning plate 201 rotate and approach the side of the heat sink 2, the cleaning brush 2015 at one end will contact the side of the heat sink 2 and sweep it to remove the dust that is carried upward by the airflow and attached to the surface of the heat sink 2. To prevent excessive adhesion and thus reduce the heat conduction efficiency of the heat sink 2, the cleaning brush 2015 is connected via a hinge shaft with a torsion spring. This ensures that the initial state of the cleaning brush 2015 is horizontally parallel. As the cleaning plate 201 rotates, the brush 2015 deflects due to the constant approaching and separation from the side of the heat sink 2. This friction causes the cleaning brush 2015 to follow the rotation of the cleaning plate 201, adapting to the changing distance between the cleaning plate 201 and the side of the heat sink 2 during rotation. This ensures continuous contact with the side of the heat sink 2 and increases the cleaning area.

[0038] Meanwhile, the cleaning plate 201 itself is curved in opposite directions near both ends. The curved parts of the cleaning plate 201 near both ends are respectively located in the gaps of the heat sink 2. When the diversion port 302 blows into the cleaning plate 201 in the two gaps of the heat sink 2, the downward curved part of the cleaning plate 201 is subjected to greater airflow impact, while the upward curved part guides the airflow to a certain extent, resulting in less airflow impact than the downward curved part. Therefore, when both ends of the cleaning plate 201 are blown by the upward airflow, the downward curved part will be blown to rotate along the hinge axis 2011. When the cleaning plate 201 rotates, the side of the heat sink 2 is cleaned by the cleaning brush 2015.

[0039] Furthermore, connection openings 202 are provided near both ends of the cleaning plate 201, and deflection plates 2013 are connected to the connection openings 202. When the part of the deflection plate 2013 connected to it bends downwards, the top of one end of the deflection plate 2013 will fit into the abutment groove 2014. Therefore, when the airflow blows upwards, it will apply upward pressure to the deflection plate 2013. Because it is fitted into the abutment groove 2014, the deflection plate 2013 will remain in contact with the abutment groove 2014, thus blocking the connection openings 202 of the downward-bending part, allowing the airflow to blow normally onto the cleaning plate. The upward-curved deflector plate 2013 is driven by the airflow from bottom to top, and the airflow pushes it upward. Meanwhile, the abutment groove 2014 is located below one end of the deflector plate 2013, so it does not restrict the deflector plate 2013. Therefore, when the airflow blows upward, it will deflect the deflector plate 2013, allowing the airflow to flow through the open connection opening 202, thereby reducing the thrust generated by the airflow. When the two ends of the cleaning plate 201 are located in the two gaps of the heat sink 2 and are blown upward at the same time, it will not affect the rotation of the cleaning plate 201.

[0040] Finally, most of the dust and impurities swept away are blown away by the airflow, while a small portion of particulate impurities fall to the top of the cooler 3. Because the diversion port 302 continuously blows out airflow, they will not fall into the interior of the cooler 3, but will fall onto the sliding wall 3021. The inclined surface of the sliding wall 3021 allows the particulate impurities to slide into the discharge groove 303. They then slide directly out of the cooler 3 through the sliding inclined surface 3031 of the discharge groove 303, preventing them from accumulating and causing secondary pollution due to the airflow. At the same time, the part that falls behind the diversion port 302 will slide to the location where the triangular protrusion 3032 is set, and slide through the inclined surface of the triangular protrusion 3032. Because the two sides of the triangular protrusion 3032 are connected to the discharge groove 303, they will slide into the discharge groove 303 and be discharged, thus preventing the particulate impurities from accumulating on the back of the diversion port 302.

Claims

1. A cooling device for a transformer, comprising a transformer (1), wherein heat sinks (2) are provided on the side wall of the transformer (1), a cooler (3) is connected to the bottom of the heat sinks (2), and a fan (301) is provided at the bottom of the cooler (3), characterized in that, The top of the cooler (3) is provided with a diversion port (302), which corresponds to the gap of the heat sink (2). The heat sink (2) has a connection opening (202) in the middle, and a cleaning plate (201) is hinged to the middle of the connection opening (202). The cleaning plate (201) has ventilation openings (2012) near both ends, and a deflection plate (2013) is hinged to the middle of the ventilation opening (2012).

2. A cooling device for a transformer according to claim 1, characterized in that, The cleaning plate (201) is curved in opposite directions near both ends.

3. A cooling device for a transformer according to claim 1, characterized in that, The cleaning plate (201) also includes a hinge shaft (2011), an abutment groove (2014), and a cleaning brush (2015). The hinge shaft (2011) is provided in the middle of the cleaning plate (201), the abutment groove (2014) is opened at one end of the ventilation opening (2012), and the cleaning brush (2015) is hinged to both ends of the cleaning plate (201).

4. A cooling device for a transformer according to claim 3, characterized in that, The cleaning plate (201) is connected to the connection opening (202) via a central hinge shaft (2011), and the abutment groove (2014) engages with one end of the deflection plate (2013).

5. A cooling device for a transformer according to claim 3, characterized in that, The hinge shaft of the cleaning brush (2015) and the hinged cleaning plate (201) is provided with a torsion spring.

6. A cooling device for a transformer according to claim 1, characterized in that, The diversion port (302) consists of several protrusions on the top of the cooler (3).

7. A cooling device for a transformer according to claim 1, characterized in that, The cooler (3) further includes a sliding wall (3021), a discharge groove (303), a sliding ramp (3031), and a triangular protrusion (3032). The sliding wall (3021) is located on the side wall of the diversion port (302). The discharge groove (303) is located on the top of the cooler (3). The sliding ramp (3031) is located at the bottom of the middle part of the discharge groove (303). The triangular protrusion (3032) is located on the top of the cooler (3).

8. A cooling device for a transformer according to claim 7, characterized in that, The sliding wall (3021) is a conical surface of the side wall of the diversion port (302), and the discharge groove (303) is opened on both sides of the diversion port (302) at the top of the cooler (3).

9. A cooling device for a transformer according to claim 7, characterized in that, The triangular protrusion (3032) is located in the groove on the back of the top outlet (302) of the cooler (3), and the two sides of the triangular protrusion (3032) are connected to the discharge groove (303).

10. A cooling device for a transformer according to claim 1, characterized in that, The deflection plate (2013) is bent to match the arc-shaped portions near both ends of the cleaning plate (201).

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