A power transformer for preventing electromagnetic interference

Abstract

The present invention discloses an electromagnetic interference-proof power transformer, comprising a support frame, an electromagnetic interference-proof box arranged on the top of the support frame, a heat sink for dissipating heat and cooling the power transformer, a transformer mechanism for transforming the power current, and a power-off mechanism for powering off the transformer mechanism. The present invention relates to the technical field of power transformers; when a problem occurs in the operation of the power transformer, the power can be automatically cut off to avoid further damage to the equipment, and the power transformer can be automatically connected after inspection and maintenance are completed so that the equipment can operate. When the power transformer needs to be inspected and repaired, the electromagnetic interference-proof box can be pushed out of the power transformer to facilitate inspection by staff, and the insulating oil inside the electromagnetic interference-proof box can be filtered and tested. If there is no problem, it can be recycled to reduce equipment resource loss.

Description

Technical Field

[0001] The present invention relates to the technical field of power transformers, in particular to a power transformer capable of preventing electromagnetic interference. Background Art

[0002] A power transformer is a soft magnetic electromagnetic component that performs power transmission, voltage conversion, and insulation isolation. It is widely used in power supply technology and power electronics. Power transformers are categorized by power transmission power: 10kVA and above for high power, 10kVA to 0.5kVA for medium power, 0.5kVA to 25VA for low power, and 25VA or less for micro power. It goes without saying that power transformer designs vary depending on the power transmission.

[0003] The existing power transformers for electromagnetic interference protection have a relatively simple structure. The existing power transformers can automatically cut off the power when problems occur in the equipment operation. However, after the power transformer is repaired, the staff needs to manually connect the line. At the same time, when the power transformer is damaged and repaired, the internal insulating oil used for cooling needs to be replaced, which greatly increases the loss of equipment resources.

[0004] To this end, the present invention provides a power transformer that is resistant to electromagnetic interference to solve the above problems. Summary of the Invention

[0005] In view of the deficiencies in the prior art, the present invention provides an electromagnetic interference-proof power transformer to solve the above-mentioned problems.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a power transformer for preventing electromagnetic interference, comprising:

[0007] A support frame, and an electromagnetic interference protection box arranged on top of the support frame;

[0008] A heat sink, which is used to dissipate heat and cool the power transformer;

[0009] A voltage transformation mechanism, the voltage transformation mechanism being used to transform the power supply current;

[0010] A power-off mechanism, which is used to cut off power to the transformer mechanism;

[0011] A storage mechanism, the storage mechanism being used for detecting and filtering insulating oil;

[0012] The top of the support frame is fixedly connected to the bottom of the anti-electromagnetic interference box, the side wall of the anti-electromagnetic interference box is fixedly connected to one side of the heat sink, the side wall of the anti-electromagnetic interference box is fixedly connected to one side of the storage mechanism, the top of the transformer mechanism is fixedly connected to the inner wall of the anti-electromagnetic interference box, and the side wall of the power-off mechanism is fixedly connected to the inner wall of the transformer mechanism;

[0013] Wherein, the voltage transformation mechanism includes:

[0014] A sealing plate, and a connecting rod arranged at the bottom of the sealing plate;

[0015] A power transformer, which is used to transform the power current;

[0016] The bottom of the sealing plate is slidably connected to the top of the electromagnetic interference protection box, the bottom of the sealing plate is fixedly connected to the top of the connecting rod, and the bottom of the connecting rod is fixedly connected to the top of the power transformer.

[0017] Preferably: the transformer mechanism also includes an empty slot, the inner wall of the anti-electromagnetic interference box is provided with an empty slot, the bottom of the inner wall of the empty slot is fixedly connected to a first electric push rod, the side wall of the first electric push rod is fixedly connected to a sliding baffle, one side of the inner wall of the anti-electromagnetic interference box is provided with an oil inlet hole, and the other side of the inner wall of the anti-electromagnetic interference box is provided with an oil drain hole.

[0018] Preferably, the side wall of the sliding baffle is slidably connected to the inner wall of the slot, and the top of the first electric push rod is fixedly connected to the bottom of the sealing plate.

[0019] Preferably: the power-off mechanism includes an incoming wire, the top of the power transformer is fixedly connected to the bottom of the incoming wire, the top of the incoming wire is fixedly connected to a first electrical connector, the bottom of the first electrical connector is fixedly connected to an electromagnetic detector, the top of the first electrical connector is fixedly connected to an insulating tube, the top of the first electrical connector is fixedly connected to a temperature-sensitive spring, the top of the first electrical connector is fixedly connected to a sliding telescopic rod, the top of the sliding telescopic rod is fixedly connected to the bottom of the inner wall of the second electrical connector, the top of the second electrical connector is fixedly connected to a micro air pump, the bottom of the micro air pump is connected to an exhaust pipe, the top of the second electrical connector is fixedly connected to an outgoing wire, the top of the insulating tube is fixedly connected to the bottom of the second electrical connector, and the top of the temperature-sensitive spring is fixedly connected to the bottom of the second electrical connector.

[0020] Preferably, the top of the temperature-sensing spring is fixedly connected to the bottom of the inner wall of the second connector, the side wall of the insulating tube is slidably connected to the inner wall of the second connector, the side wall of the exhaust pipe passes through the second connector, and the side wall of the exhaust pipe is fixedly connected to the inner wall of the second connector.

[0021] and a tube connecting the dischar e side of the pump with a plug in the forward end of the crank case, said tube having a check valve in it at the pump end, and said former tube which connects the pump to the oil drain plug, said tube having a check valve in it at the pump end, and said former tube which connects the pump to the oil drain plug, and said former tube which connects the pump to the oil drain plug, and said former

[0022] Preferably, the side wall of the second oil pipeline passes through the filter plate, and the side wall of the second oil pipeline is fixedly connected to the inner wall of the filter plate, and the bottom of the sliding fixed block is slidably connected to the top of the sealing plate. Beneficial effects

[0023] The present invention provides a power transformer that is resistant to electromagnetic interference. Compared with the prior art, it has the following advantages:

[0024] (1) The electromagnetic interference-proof power transformer can automatically cut off the power supply when a problem occurs in the operation of the power transformer through the cooperation of the electromagnetic detector, the first electrical connector, the insulating tube, the temperature-sensitive spring, the sliding telescopic rod, the exhaust pipe, the second electrical connector, the micro air pump, the second electric push rod and the sliding fixed block, thereby avoiding the expansion of equipment damage. After the power transformer is inspected and repaired, the wiring can be automatically connected so that the equipment can be operated. At the same time, the sealing plate can be stopped from being fixed when a problem occurs in the operation of the power transformer, thereby avoiding the need for the staff to manually loosen the sliding fixed block during maintenance, thereby improving the degree of automation of the device.

[0025] (2) When the power transformer with electromagnetic interference protection needs to be inspected and repaired, the first electric push rod, the sliding baffle, the oil inlet hole, the oil drain hole, the oil storage tank, the oil drain pump, the oil pump, the oil filter box, the filter plate, the insulating oil detection equipment and the waste oil tank can be used to push the electromagnetic interference protection box out of the power transformer, so that the staff can inspect and repair it and at the same time filter and detect the insulating oil inside the electromagnetic interference protection box. If there is no problem, it can be recycled and used again, thereby reducing the loss of equipment resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic structural diagram of the power transformer for preventing electromagnetic interference according to the present invention;

[0027] Figure 2It is a schematic diagram of the internal structure of the power transformer for preventing electromagnetic interference of the present invention;

[0028] Figure 3 It is a structural schematic diagram of the voltage transformation mechanism of the present invention;

[0029] Figure 4 It is a structural schematic diagram of the power-off mechanism of the present invention;

[0030] Figure 5 It is a structural diagram of the storage mechanism of the present invention.

[0031] Figure 1: Support frame; 2. Anti-electromagnetic interference box; 3. Heat sink; 4. Transformer mechanism; 5. Power-off mechanism; 6. Storage mechanism; 40. Sealing plate; 41. Connecting rod; 42. Power transformer; 43. Empty slot; 44. First electric push rod; 45. Sliding baffle; 46. Oil inlet hole; 47. Oil drain hole; 50. Inlet wire; 51. Electromagnetic detector; 52. First electrical connector; 53. Insulating tube; 54. Temperature-sensitive spring; 55. Sliding telescopic rod; 56. Air extraction Pipe; 57, second electrical connection; 58, micro air pump; 59, outlet wire; 60, oil storage tank; 61, oil discharge pump; 611, first oil extraction pipe; 612, first oil delivery pipe; 62, oil extraction pump; 621, second oil extraction pipe; 622, second oil delivery pipe; 63, oil filter box; 64, filter plate; 65, insulating oil testing equipment; 66, waste oil tank; 67, oil collection pipe; 68, solenoid valve; 69, fixing block; 691, second electric push rod; 692, sliding fixing block. DETAILED DESCRIPTION

[0032] The following will provide a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention. Example

[0033] See also Figure 1-Figure 3 , a power transformer for preventing electromagnetic interference, comprising:

[0034] A support frame 1, and an electromagnetic interference protection box 2 arranged on the top of the support frame 1;

[0035] The heat sink 3 is used to dissipate heat and cool the power transformer;

[0036] A voltage transformation mechanism 4, the voltage transformation mechanism 4 is used to transform the power supply current;

[0037] A power-off mechanism 5, which is used to power off the transformer mechanism 4;

[0038] A storage mechanism 6, which is used to detect and filter the insulating oil;

[0039] The top of the support frame 1 is fixedly connected to the bottom of the anti-electromagnetic interference box 2, the side wall of the anti-electromagnetic interference box 2 is fixedly connected to one side of the heat sink 3, the side wall of the anti-electromagnetic interference box 2 is fixedly connected to one side of the storage mechanism 6, the top of the transformer mechanism 4 is fixedly connected to the inner wall of the anti-electromagnetic interference box 2, and the side wall of the power-off mechanism 5 is fixedly connected to the inner wall of the transformer mechanism 4;

[0040] The voltage transformation mechanism 4 includes:

[0041] A sealing plate 40, and a connecting rod 41 provided at the bottom of the sealing plate 40;

[0042] A power transformer 42, which is used to transform the power current;

[0043] The bottom of the sealing plate 40 is slidably connected to the top of the anti-electromagnetic interference box 2, the bottom of the sealing plate 40 is fixedly connected to the top of the connecting rod 41, and the bottom of the connecting rod 41 is fixedly connected to the top of the power transformer 42; the transformer mechanism 4 also includes a slot 43, the inner wall of the anti-electromagnetic interference box 2 is provided with a slot 43, the bottom of the inner wall of the slot 43 is fixedly connected to a first electric push rod 44, the side wall of the first electric push rod 44 is fixedly connected to a sliding baffle 45, one side of the inner wall of the anti-electromagnetic interference box 2 is provided with an oil inlet hole 46, the other side of the inner wall of the anti-electromagnetic interference box 2 is provided with an oil drain hole 47, the side wall of the sliding baffle 45 is slidably connected to the inner wall of the slot 43, and the top of the first electric push rod 44 is fixedly connected to the bottom of the sealing plate 40;

[0044] It should be noted that the staff installed the equipment on the power line, and the power supply electricity entered the power transformer 42 through the connecting wire to transform the current. Example

[0045] See also Figure 4This embodiment provides a technical solution based on the first embodiment: the power-off mechanism 5 includes an incoming power line 50, the top of the power transformer 42 is fixedly connected to the bottom of the incoming power line 50, the top of the incoming power line 50 is fixedly connected to a first electrical connector 52, the bottom of the first electrical connector 52 is fixedly connected to an electromagnetic detector 51, the top of the first electrical connector 52 is fixedly connected to an insulating tube 53, the top of the first electrical connector 52 is fixedly connected to a temperature-sensitive spring 54, the top of the first electrical connector 52 is fixedly connected to a sliding telescopic rod 55, and the top of the sliding telescopic rod 55 is fixedly connected to the bottom of the inner wall of the second electrical connector 57. A micro air pump 58 is fixedly connected to the top of the second electrical connector 57, and an exhaust pipe 56 is connected to the bottom of the micro air pump 58. An outlet wire 59 is fixedly connected to the top of the second electrical connector 57. The top of the temperature-sensing spring 54 is fixedly connected to the bottom of the inner wall of the second electrical connector 57. The side wall of the insulating tube 53 is slidably connected to the inner wall of the second electrical connector 57. The side wall of the exhaust pipe 56 passes through the second electrical connector 57, and the side wall of the exhaust pipe 56 is fixedly connected to the inner wall of the second electrical connector 57. The top of the insulating tube 53 is fixedly connected to the bottom of the second electrical connector 57, and the top of the temperature-sensing spring 54 is fixedly connected to the bottom of the second electrical connector 57.

[0046] It should be noted that when the device is transforming the power current, the electromagnetic detector 51 is used to monitor the electromagnetic inside the anti-electromagnetic interference box 2 in real time. If the electromagnetic data collected by the electromagnetic detector 51 is different from the normal operating data, the electromagnetic detector 51 controls the micro air pump 58 to turn off, and the micro air pump 58 stops extracting the gas from the inner wall of the exhaust pipe 56 to loosen the first electrical connector 52. When the power transformer 42 operates abnormally, the internal temperature of the anti-electromagnetic interference box 2 will rise sharply, driving the temperature sensing spring 54 to extend. The temperature sensing spring 54 drives the sliding telescopic rod 55 to extend and separate the second electrical connector 57 from the first electrical connector 52 to complete the power outage. The power transformer 42 of the power box can be stopped in time when the device operates abnormally. The current is not transmitted to the outside to avoid damage to the power transformer 42. At the same time, the electromagnetic detector 51 controls the second electric push rod 691 to retract. The second electric push rod 691 drives the sliding fixed block 692 to retract and stop fixing the sealing plate 40, which is convenient for the staff to repair the power transformer 42. When the power transformer 42 is repaired, the internal temperature of the anti-electromagnetic interference box 2 tends to be normal. The temperature-sensing spring 54 drives the first electrical connector 52 to reconnect with the second electrical connector 57 through the sliding telescopic rod 55. The electromagnetic detector 51 controls the micro air pump 58 to start. The micro air pump 58 draws out air through the exhaust pipe 56 and the air pressure makes the second electrical connector 57 and the first electrical connector 52 firmly fixed together, thereby improving the degree of automation of the device. Example

[0047] See also Figure 5This embodiment provides a technical solution based on the first embodiment: the storage mechanism 6 includes an oil storage tank 60, the side wall of the electromagnetic interference protection box 2 is fixedly connected to one side of the oil storage tank 60, the inner wall of the oil storage tank 60 is fixedly connected to an oil drain pump 61, the water outlet of the oil drain pump 61 is connected to a first oil extraction pipe 611, the water outlet of the oil drain pump 61 is connected to a first oil delivery pipe 612, the inner wall of the oil storage tank 60 is fixedly connected to an oil pump 62, the water outlet of the oil pump 62 is connected to a second oil extraction pipe 621, the water outlet of the oil pump 62 is connected to a second oil delivery pipe 622, the top of the oil storage tank 60 is fixedly connected to a filter plate 64, and the top of the filter plate 64 is fixedly connected to an oil filter. Box 63, the top of the oil filter box 63 is fixedly connected to a fixed block 69, one side of the fixed block 69 is fixedly connected to a second electric push rod 691, one end of the second electric push rod 691 is fixedly connected to a sliding fixed block 692, the bottom of the oil storage tank 60 is fixedly connected to a waste oil tank 66, the top of the inner wall of the waste oil tank 66 is connected to an oil collection pipe 67, and the oil collection pipe 67 is provided with a solenoid valve 68. An insulating oil detection device 65 is fixedly connected to one side of the inner wall of the oil storage tank 60, the side wall of the second oil delivery pipe 622 passes through the filter plate 64, and the side wall of the second oil delivery pipe 622 is fixedly connected to the inner wall of the filter plate 64, and the bottom of the sliding fixed block 692 is slidably connected to the top of the sealing plate 40;

[0048] It should be noted that when the second electric push rod 691 drives the sliding fixed block 692 away from the surface of the sealing plate 40 and the staff needs to repair and inspect the power transformer 42, the first electric push rod 44 drives the sealing plate 40 to rise, the sealing plate 40 drives the connecting rod 41 to rise, and the connecting rod 41 drives the power transformer 42 to rise, which is convenient for the staff to repair and monitor the power transformer 42. When the first electric push rod 44 is extended, the first electric push rod 44 drives the sliding baffle 45 to rise, and the sliding baffle 45 is away from the oil drain hole 47, and the oil pump 62 is started. The oil pump 62 extracts the insulating oil inside the anti-electromagnetic interference box 2 through the second oil extraction pipe 621, and the oil pump 62 then inputs the extracted insulating oil into the oil filter box 63 through the second oil delivery pipe 622. The lubricating oil inside the oil filter box 63 falls into the oil storage tank 60 due to gravity. When the insulating oil falls, the Jinguo filter plate 64 filters it to avoid absolute Impurities contained in the insulating oil enter the oil storage tank 60. After the insulating oil enters the oil storage tank 60, the insulating oil detection equipment 65 is started to detect the quality of the insulating oil. If the insulating oil cannot be used anymore, the solenoid valve 68 is opened, and the insulating oil enters the waste oil tank 66 through the oil collection pipe 67 for storage to prevent it from being discharged at will and causing pollution to the environment. If the insulating oil quality is not a problem, when the power transformer 42 and the inspection and maintenance are completed, the first electric push rod 44 drives the sealing plate 40 to reset, and the first electric push rod 44 drives the sliding baffle 45 to press down to block the oil drain hole 47 to open the oil inlet hole 46, and start the oil drain pump 61. The oil drain pump 61 extracts the insulating oil from the oil storage tank 60 through the first oil extraction pipe 611, and the oil drain pump 61 then inputs the extracted insulating oil into the anti-electromagnetic interference box 2 through the first oil delivery pipe 612 to cool the power transformer 42, thereby improving the practicality of the device and reducing resource loss.

[0049] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0050] During operation, the staff installs the equipment on the power line, and the power enters the power transformer 42 through the connecting wire to transform the current;

[0051] When the device is transforming the power current, the electromagnetic detector 51 is used to monitor the electromagnetic inside the anti-electromagnetic interference box 2 in real time. If the electromagnetic data collected by the electromagnetic detector 51 is different from the normal operating data, the electromagnetic detector 51 controls the micro air pump 58 to turn off, and the micro air pump 58 stops extracting the gas from the inner wall of the exhaust pipe 56 to loosen the first electrical connector 52. When the power transformer 42 operates abnormally, the internal temperature of the anti-electromagnetic interference box 2 will rise sharply, driving the temperature sensing spring 54 to extend. The temperature sensing spring 54 drives the sliding telescopic rod 55 to extend and separate the second electrical connector 57 from the first electrical connector 52 to complete the power outage. The internal transmission of the power transformer 42 of the power box can be stopped in time when the device operates abnormally. Current, to avoid damage to the power transformer 42, at the same time, the electromagnetic detector 51 controls the second electric push rod 691 to retract, and the second electric push rod 691 drives the sliding fixed block 692 to retract and stop fixing the sealing plate 40, so that the staff can repair the power transformer 42. When the power transformer 42 is repaired, the internal temperature of the electromagnetic interference protection box 2 will be normal, and the temperature-sensing spring 54 drives the first electrical connector 52 to reconnect with the second electrical connector 57 through the sliding telescopic rod 55. The electromagnetic detector 51 controls the micro air pump 58 to start, and the micro air pump 58 draws air through the exhaust pipe 56. The air pressure makes the second electrical connector 57 and the first electrical connector 52 firmly fixed together, thereby improving the degree of automation of the device;

[0052] When the second electric push rod 691 drives the sliding fixed block 692 away from the surface of the sealing plate 40 and the staff needs to perform maintenance and monitoring on the power transformer 42, the first electric push rod 44 drives the sealing plate 40 to rise, the sealing plate 40 drives the connecting rod 41 to rise, and the connecting rod 41 drives the power transformer 42 to rise so that the staff can perform maintenance and monitoring on the power transformer 42. When the first electric push rod 44 is extended, the first electric push rod 44 drives the sliding baffle 45 to rise, and the sliding baffle 45 is away from the oil drain hole 47, and the oil pump 62 is started. The oil pump 62 extracts the insulating oil inside the anti-electromagnetic interference box 2 through the second oil extraction pipe 621, and the oil pump 62 then inputs the extracted insulating oil into the oil filter box 63 through the second oil delivery pipe 622. The lubricating oil inside the oil filter box 63 falls into the oil storage tank 60 under the influence of gravity. When the insulating oil falls, the filter plate 64 filters it to prevent the insulating oil from being inside The insulating oil enters the oil storage tank 60 and the insulating oil detection equipment 65 is started to detect the quality of the insulating oil. If the insulating oil cannot be used any more, the solenoid valve 68 is opened, and the insulating oil enters the waste oil tank 66 through the oil collection pipe 67 for storage to prevent it from being discharged at will and causing pollution to the environment. If the insulating oil quality is normal, when the power transformer 42 and the inspection and maintenance are completed, the first electric push rod 44 drives the sealing plate 40 to reset, and the first electric push rod 44 drives the sliding baffle 45 to press down and block the oil drain hole 47 to open the oil inlet hole 46, and start the oil drain pump 61. The oil drain pump 61 extracts the insulating oil from the oil storage tank 60 through the first oil extraction pipe 611, and the oil drain pump 61 then inputs the extracted insulating oil into the electromagnetic interference protection box 2 through the first oil delivery pipe 612 to cool the power transformer 42, thereby improving the practicality of the device and reducing resource loss.

[0053] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0054] While 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 these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A power transformer for preventing electromagnetic interference, characterized in that: include: A support frame (1), and an electromagnetic interference protection box (2) arranged on the top of the support frame (1); A heat sink (3), the heat sink (3) is used to dissipate heat and cool the power transformer; A voltage transformation mechanism (4), the voltage transformation mechanism (4) is used to transform the power supply current; A power-off mechanism (5), the power-off mechanism (5) being used to power off the transformer mechanism (4); A storage mechanism (6), the storage mechanism (6) is used to detect and filter the insulating oil; The top of the support frame (1) is fixedly connected to the bottom of the anti-electromagnetic interference box (2), the side wall of the anti-electromagnetic interference box (2) is fixedly connected to one side of the heat sink (3), the side wall of the anti-electromagnetic interference box (2) is fixedly connected to one side of the storage mechanism (6), the top of the transformer mechanism (4) is fixedly connected to the inner wall of the anti-electromagnetic interference box (2), and the side wall of the power-off mechanism (5) is fixedly connected to the inner wall of the transformer mechanism (4); Wherein, the voltage transformation mechanism (4) comprises: A sealing plate (40), and a connecting rod (41) arranged at the bottom of the sealing plate (40); A power transformer (42), the power transformer (42) is used to transform the power current; The bottom of the sealing plate (40) is slidably connected to the top of the anti-electromagnetic interference box (2), the bottom of the sealing plate (40) is fixedly connected to the top of the connecting rod (41), and the bottom of the connecting rod (41) is fixedly connected to the top of the power transformer (42); An inner wall of the anti-electromagnetic interference box (2) is provided with a slot (43), a first electric push rod (44) is fixedly connected to the bottom of the inner wall of the slot (43), a sliding baffle (45) is fixedly connected to the side wall of the first electric push rod (44), an oil inlet hole (46) is provided on one side of the inner wall of the anti-electromagnetic interference box (2), and an oil drain hole (47) is provided on the other side of the inner wall of the anti-electromagnetic interference box (2).

2. The electromagnetic interference-proof power transformer according to claim 1, characterized in that: The side wall of the sliding baffle (45) is slidably connected to the inner wall of the slot (43), and the top of the first electric push rod (44) is fixedly connected to the bottom of the sealing plate (40).

3. The electromagnetic interference-proof power transformer according to claim 1, characterized in that: The power-off mechanism (5) includes an inlet wire (50), the top of the power transformer (42) is fixedly connected to the bottom of the inlet wire (50), the top of the inlet wire (50) is fixedly connected to a first electrical connector (52), the bottom of the first electrical connector (52) is fixedly connected to an electromagnetic detector (51), the top of the first electrical connector (52) is fixedly connected to an insulating tube (53), the top of the first electrical connector (52) is fixedly connected to a temperature-sensitive spring (54), the top of the first electrical connector (52) is fixedly connected to a sliding telescopic rod (55), the top of the sliding telescopic rod (55) is fixedly connected to the bottom of the inner wall of the second electrical connector (57), the top of the second electrical connector (57) is fixedly connected to a micro air pump (58), the bottom of the micro air pump (58) is connected to an exhaust pipe (56), the top of the second electrical connector (57) is fixedly connected to an outlet wire (59), the top of the insulating tube (53) is fixedly connected to the bottom of the second electrical connector (57), and the top of the temperature-sensitive spring (54) is fixedly connected to the bottom of the second electrical connector (57).

4. The electromagnetic interference-proof power transformer according to claim 1, characterized in that: The storage mechanism (6) includes an oil storage tank (60), the side wall of the electromagnetic interference protection box (2) is fixedly connected to one side of the oil storage tank (60), the inner wall of the oil storage tank (60) is fixedly connected to an oil discharge pump (61), the water outlet of the oil discharge pump (61) is connected to a first oil extraction pipe (611), the water outlet of the oil discharge pump (61) is connected to a first oil delivery pipe (612), the inner wall of the oil storage tank (60) is fixedly connected to an oil pump (62), the water outlet of the oil pump (62) is connected to a second oil extraction pipe (621), the water outlet of the oil pump (62) is connected to a second oil delivery pipe (622), and the top of the oil storage tank (60) is fixedly connected to A filter plate (64) is connected, the top of the filter plate (64) is fixedly connected to an oil filter box (63), the top of the oil filter box (63) is fixedly connected to a fixed block (69), one side of the fixed block (69) is fixedly connected to a second electric push rod (691), one end of the second electric push rod (691) is fixedly connected to a sliding fixed block (692), the bottom of the oil storage tank (60) is fixedly connected to a waste oil tank (66), the top of the inner wall of the waste oil tank (66) is connected to an oil collection pipe (67), and a solenoid valve (68) is provided on the oil collection pipe (67), and one side of the inner wall of the oil storage tank (60) is fixedly connected to an insulating oil detection device (65).

5. The electromagnetic interference-proof power transformer according to claim 3, characterized in that: The top of the temperature-sensing spring (54) is fixedly connected to the bottom of the inner wall of the second electrical connector (57), the side wall of the insulating tube (53) is slidably connected to the inner wall of the second electrical connector (57), the side wall of the exhaust pipe (56) passes through the second electrical connector (57), and the side wall of the exhaust pipe (56) is fixedly connected to the inner wall of the second electrical connector (57).

6. The electromagnetic interference-proof power transformer according to claim 4, characterized in that: The side wall of the second oil delivery pipe (622) passes through the filter plate (64), and the side wall of the second oil delivery pipe (622) is fixedly connected to the inner wall of the filter plate (64), and the bottom of the sliding fixed block (692) is slidably connected to the top of the sealing plate (40).

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