A magnetic flux leakage shielding device and method for controlling elevator transformer

Abstract

The present invention discloses a leakage magnetic shielding device and method for controlling an elevator transformer, which relates to the technical field of electric power equipment, and includes a mounting base, a shielding shell and a horizontal pitch-adjusting seat. The shielding shell is installed on the top of the mounting base, and the horizontal pitch-adjusting seat is movably installed on the inner side of the pitch-adjusting slot, and the fitting shielding plate is installed on the top of the horizontal pitch-adjusting seat. The present invention provides a fitting shielding assembly on the top of the horizontal pitch-adjusting seat. After the elevator transformer is placed inside the transformer slot, the operating disk is manually rotated to drive the horizontal pitch-adjusting seat to move. The horizontal pitch-adjusting seat slides inside the pitch-adjusting slot under the threaded transmission of the threaded rod. When the fitting shielding plate is tightly fitted with the elevator transformer, it can more effectively absorb and reflect the leakage magnetic field, reduce the propagation of the leakage magnetic field to the outside, improve the effectiveness of electromagnetic shielding, and maintain the stability and reliability of the elevator system. The fitting shielding plate is tightly fitted with the elevator transformer to provide a better heat conduction path.

Description

Technical Field

[0001] The present invention relates to the technical field of electric power equipment, and in particular to a magnetic flux leakage shielding device and method for controlling an elevator transformer. Background Art

[0002] The leakage magnetic field shielding device is a device used to reduce or eliminate the leakage magnetic field generated by the elevator transformer. The device is usually made of metal material, has high conductivity and good magnetic permeability, and can effectively absorb and reflect the leakage magnetic field. The main purpose of the leakage magnetic field shielding device is to reduce or eliminate the leakage magnetic field generated by the transformer, thereby preventing potential electromagnetic interference. It can effectively reduce the impact of the leakage magnetic field on the surrounding environment and equipment, and improve the safety and efficiency of the elevator system.

[0003] The defects of the leakage magnetic shielding device in the prior art are:

[0004] 1. Patent document JP2009218614A discloses a magnetic shielding device, in which there is a gap between the shielding structure and the device. The shielding structure cannot effectively absorb and reflect the leakage magnetic field, which increases the propagation of the leakage magnetic field to the outside, reduces the efficiency of the shielding system, and the stability of the shielding device during operation is poor.

[0005] 2. Patent document CN219778683U discloses a transformer leakage magnetic shielding structure. After the leakage magnetic shielding structure is installed in place, the shielding shell cannot be further locked. The change in the position of the shielding structure is likely to have an adverse effect on the performance of the leakage magnetic shielding device, and the stability and reliability of the shielding structure cannot be guaranteed.

[0006] 3. Patent document CN216957712U discloses a transformer leakage shielding structure, which has poor heat dissipation performance. The shielding structure loses energy and causes thermal impact on the surrounding environment. Electromagnetic noise and interference signals in the external electromagnetic field can easily lead to instability of the electromagnetic environment inside the leakage shielding device.

[0007] 4. Patent document CN215183475U discloses a transformer leakage magnetic shielding structure and a transformer. The leakage magnetic shielding structure cannot adsorb moisture from external gases. The humid environment inside the shielding structure will cause the insulation performance inside the leakage magnetic shielding structure to decrease, increasing the risk of leakage current and electrical failure. Summary of the invention

[0008] The object of the present invention is to provide a leakage magnetic shielding device and method for controlling an elevator transformer to solve the problems raised in the above background technology.

[0009] To achieve the above object, the present invention provides the following technical solution: a magnetic flux leakage shielding device for controlling an elevator transformer, comprising a mounting base, a shielding shell and a horizontal pitch-adjusting seat, wherein the shielding shell is mounted on the top of the mounting base, the top of the mounting base is symmetrically provided with pitch-adjusting grooves, and the inner side of the pitch-adjusting groove is movably provided with a horizontal pitch-adjusting seat;

[0010] A fitting shielding assembly is arranged on the top of the horizontal distance adjusting seat, and the fitting shielding assembly includes a fitting shielding plate, a docking plate and a fitting pad. The fitting shielding plate is installed on the top of the horizontal distance adjusting seat, a buffer damper is installed on the outer side of the fitting shielding plate, the docking plate is installed on the working end of the buffer damper, the fitting pad is installed on the outer side of the docking plate, a contact sensor is installed on the outer side of the fitting shielding plate, and the contact sensor cooperates with the docking plate.

[0011] Preferably, a threaded hole is provided on the outer side of the mounting base, a threaded rod is installed in cooperation with the inner thread of the threaded hole, and the output end of the threaded rod is connected to the outer end of the horizontal distance adjusting seat, an operating panel is installed on the outer end of the threaded rod, a disassembly groove is provided on the top of the horizontal distance adjusting seat, and the bottom end of the shielding plate is inserted into the inner side of the disassembly groove, a fastening groove is provided on the other end of the horizontal distance adjusting seat, and the fastening groove is connected with the disassembly groove, a fastening bolt is installed on the inner side of the fastening groove through a thread, and the fastening bolt passes through the inner side of the disassembly groove.

[0012] Preferably, an adjustment locking assembly is provided on the inner side of the distance adjusting groove, and the adjustment locking assembly includes a locking cover, an anti-slip pad and a locking plug plate. The locking cover is detachably mounted on the top of the threaded rod, the anti-slip pad is mounted on the inner side of the locking cover, and the anti-slip pad cooperates with the threaded rod, the locking plug plate is mounted on the bottom end of the locking cover, a locking slot is provided on the bottom wall of the distance adjusting groove, and the locking plug plate is engaged with the inner side of the locking slot, and a lifting ring is installed on the top of the locking cover.

[0013] Preferably, an inspection port is provided through the front of the shielding shell, a flip sealing plate is installed on the top of the mounting base through a rotating shaft, and the flip sealing plate cooperates with the inspection port, mounting bolts are installed through the front of the flip sealing plate, an assembly column is installed on the top of the mounting base, an assembly groove is provided at the bottom of the shielding shell, and the assembly column is inserted into the inner side of the assembly groove, and a transformer groove is provided at the top center of the mounting base.

[0014] Preferably, a top shielding plate is installed on the inner side of the top of the shielding shell, a thermal insulation pad is installed on the inner wall of the shielding shell, a temperature and humidity sensor is installed on the inner wall of the shielding shell, an electric heating plate is installed on the inner side of the top of the shielding shell, a ventilation hole is opened through the outer side of the shielding shell, an exhaust fan is installed on the inner side of the ventilation hole, and an electric valve cover is installed on the outer end of the ventilation hole.

[0015] Preferably, a heat dissipation port is provided through the outer side of the shielding shell, a bottom slot is provided on the bottom wall of the heat dissipation port, a lifting handle is installed on the inner side of the bottom slot, a sealing retaining frame is installed on the telescopic end of the lifting handle, a top slot is provided on the top wall of the heat dissipation port, and the top slot cooperates with the sealing retaining frame, and a conductive metal mesh is installed on the inner side of the heat dissipation port.

[0016] Preferably, a threaded groove is provided on the inner wall of the shielding shell, and a ventilation and dehumidification assembly is arranged on the inner side of the threaded groove. The ventilation and dehumidification assembly includes a threaded cylinder, a dehumidification hood, a micro motor and a gear plate. The threaded cylinder is installed on the inner side of the threaded groove through a thread, and the dehumidification hood is installed on the other end of the threaded cylinder through a rotating shaft. An embedded groove is provided on the inner wall of the shielding shell, and the micro motor is installed on the inner side of the embedded groove. The gear plate is installed on the output end of the micro motor. A transmission tooth groove is provided on the outer side of the dehumidification hood, and the transmission tooth groove cooperates with the gear plate. Hygroscopic particles are placed on the inner side of the dehumidification hood, and a filter cover is detachably installed on the outer end of the dehumidification hood.

[0017] Preferably, a shielding processor is installed on the outside of the shielding shell, and the shielding processor consists of a shielding driving module and an image receiving module. The shielding driving module is bidirectionally electrically connected to the bonding shielding component, the electric heating plate, the exhaust fan, the lifting handle and the micro motor. The image receiving module receives the output signals of the temperature and humidity sensor and the contact sensor, and the image receiving module is electrically connected to the temperature comparison unit and the humidity comparison unit.

[0018] Preferably, the shielding steps of the magnetic flux leakage shielding device are as follows:

[0019] S1. First, place the elevator transformer inside the transformer slot, insert the bottom end of the fitting shielding plate into the inside of the disassembly slot, and use the fastening bolts to stabilize the connection between the two. Manually turn the operating panel to drive the horizontal spacing seat to move. The horizontal spacing seat slides inside the spacing slot under the threaded transmission of the threaded rod. After the fitting pad contacts the outer end of the elevator transformer, the docking plate is pushed to squeeze the contact sensor. The two sets of fitting shielding plates are installed in place in turn.

[0020] S2. Insert the locking plug plate into the inner side of the locking slot, the locking cover limits the threaded rod, and the anti-skid pad contacts the upper surface of the threaded rod to prevent the threaded rod from accidentally turning over inside the threaded hole, causing the horizontal spacing seat and the fitting shielding plate to change their positions, which will adversely affect the performance of the leakage magnetic shielding device;

[0021] S3. When the magnetic flux leakage shielding device is working normally, the temperature and humidity sensors monitor the temperature and humidity inside the shielding shell. When it is detected that the internal temperature is higher than the preset value, the electric valve cover and the exhaust fan are opened in sequence, and the lifting handle is extended and retracted to push the sealing frame. The sealing frame moves to the inside of the top slot to release the seal of the heat dissipation port. The outside air enters the shielding shell after being filtered by the conductive metal mesh and cooperates with the exhaust fan to promote the air flow inside the shielding device. The heat is discharged through the vents to dissipate the heat inside the shielding shell.

[0022] Preferably, in step S2, the following steps are also included:

[0023] S21, docking the assembly slot and the assembly column to achieve docking installation between the shielding shell and the installation base;

[0024] In step S3, the following steps are also included:

[0025] S31, the conductive metal mesh filters the dust in the external gas, and the hygroscopic particles absorb the moisture in the gas when the filtered gas circulates inside the dehumidification cover, and the treated gas enters the shielding shell through the filter cover plate for penetration and heat dissipation;

[0026] S32. After long-term use of the hygroscopic particles in the dehumidification hood, the micro-motor drives the gear plate to rotate. The gear plate cooperates with the transmission tooth grooves on the outside of the dehumidification hood to drive the dehumidification hood to flip, and the hygroscopic particles are stirred to ensure a good adsorption effect.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] 1. The present invention provides a fitting shielding component on the top of the horizontal pitch adjusting seat. After the elevator transformer is placed inside the transformer slot, the operating disk is manually rotated to drive the horizontal pitch adjusting seat to move. The horizontal pitch adjusting seat slides inside the pitch adjusting slot under the threaded transmission of the threaded rod. After the fitting pad contacts the outer end of the elevator transformer, the docking plate is pushed to squeeze the contact sensor. When the fitting shielding plate is tightly fitted to the elevator transformer, it can more effectively absorb and reflect the leakage magnetic field, reduce the propagation of the leakage magnetic field to the outside, improve the effectiveness of electromagnetic shielding, minimize magnetic flux leakage, and thus improve the efficiency of the entire shielding system, prevent the electromagnetic field generated by the elevator transformer from interfering with external equipment and systems, and help maintain the stability and reliability of the elevator system. The fitting shielding plate is tightly fitted to the elevator transformer to provide a better heat conduction path, help the transformer to dissipate heat more effectively, help maintain the stable operating temperature of the elevator transformer, and extend its service life.

[0029] 2. The present invention provides an adjustment locking assembly on the inner side of the distance adjustment slot. After the use position of the fitted shielding plate is adjusted into place, the locking plug plate is inserted into the inner side of the locking slot. The locking cover limits the threaded rod, and the anti-slip pad contacts the upper surface of the threaded rod to prevent the threaded rod from accidentally flipping over on the inner side of the threaded hole so that the position of the horizontal distance adjustment seat and the fitted shielding plate is changed, which has an adverse effect on the use performance of the leakage magnetic shielding device, further improving the stability and reliability of the shielding structure. After the bottom end of the fitted shielding plate is inserted into the inner side of the disassembly slot, the connection between the two is stabilized with a tightening bolt, which is convenient for maintenance and replacement after the fitted shielding plate fails.

[0030] 3. The present invention installs a conductive metal mesh on the inner side of the heat dissipation port. When the internal temperature of the shielding shell is higher than a preset value, the electric valve cover and the exhaust fan are opened in sequence, and the lifting handle is extended and retracted to push the sealing frame. The sealing frame moves to the inside of the top slot to release the seal of the heat dissipation port. The outside air enters the shielding shell after being filtered by the conductive metal mesh and cooperates with the exhaust fan to promote the air flow inside the shielding device. The heat is discharged through the vent to achieve the heat dissipation inside the shielding shell. The thermal insulation pad arranged between the shielding shell and the bonded shielding plate can effectively reduce the transfer of heat to the surrounding environment, reduce the thermal impact of the shielding layer on the surrounding environment, and reduce energy loss. The conductive metal mesh can reduce the possibility of external electromagnetic fields entering the shielding device through the heat dissipation port, filter out electromagnetic noise and interference signals entering through the heat dissipation port, and maintain the stability of the electromagnetic environment inside the leakage magnetic shielding device.

[0031] 4. The present invention provides a ventilation and dehumidification component on the inner side of the threaded groove. When the gas filtered by the conductive metal mesh dust circulates inside the dehumidification hood, the hygroscopic particles adsorb moisture in the gas. The treated gas enters the shielding shell through the filter cover plate for penetration and heat dissipation. The moisture adsorption treatment of the external gas prevents the insulation performance of the leakage magnetic shielding device from being reduced due to the humid environment of the shielding shell, reduces the risk of leakage current and electrical failure, and ensures the normal operation of the leakage magnetic shielding device. After the hygroscopic particles in the dehumidification hood are used for a long time, the micro motor runs to drive the gear plate to rotate, and the gear plate cooperates with the transmission tooth groove on the outside of the dehumidification hood to drive the dehumidification hood to flip, and the stirring of the hygroscopic particles ensures a good moisture adsorption effect and reduces the labor intensity of the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0033] Figure 2 It is a schematic diagram of the front internal structure of the present invention;

[0034] Figure 3 It is a schematic diagram of the enlarged structure of point A of the present invention;

[0035] Figure 4It is a schematic diagram of the enlarged structure of point B of the present invention;

[0036] Figure 5 It is a schematic diagram of the structure of the bonding shielding plate of the present invention;

[0037] Figure 6 It is a schematic diagram of the three-dimensional structure of the locking cover of the present invention;

[0038] Figure 7 It is a schematic diagram of the internal structure of the heat dissipation port of the present invention;

[0039] Figure 8 It is a schematic diagram of the three-dimensional structure of the dehumidification cover of the present invention;

[0040] Fig. 9 A diagram of a shielding processor system of the present invention;

[0041] Fig.10 It is the work flow chart of the present invention.

[0042] In the figure: 1. Mounting base; 2. Shielding shell; 3. Horizontal pitch adjustment seat; 4. Fitting shielding plate; 5. Locking cover; 6. Heat dissipation port; 7. Threaded barrel; 8. Inspection port; 9. Flip sealing plate; 10. Mounting bolts; 11. Shielding processor; 12. Assembly column; 13. Transformer slot; 14. Pitch adjustment slot; 15. Locking slot; 16. Threaded hole; 17. Threaded rod; 18. Operation panel; 19. Assembly slot; 20. Top shielding plate; 21. Thermal insulation pad; 22. Temperature and humidity sensor; 23. Heating plate; 24. Disassembly slot; 25. Tightening Fixed groove; 26. Fastening bolt; 27. Buffer damper; 28. Contact sensor; 29. ​​Docking plate; 30. Fitting pad; 31. Lifting ring; 32. Anti-skid pad; 33. Locking plug plate; 34. Bottom slot; 35. Lifting handle; 36. Sealing bracket; 37. Top slot; 38. Conductive metal mesh; 39. Threaded groove; 40. Embedded groove; 41. Micro motor; 42. Gear plate; 43. Dehumidification cover; 44. Transmission tooth groove; 45. Hygroscopic particles; 46. Filter cover; 47. Ventilation port; 48. Exhaust fan; 49. Electric valve cover. DETAILED DESCRIPTION

[0043] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0044] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0045] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection or a movable connection, or a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0046] See also Figure 2 , Figure 3 , Figure 4 and Figure 5 , an embodiment provided by the present invention: a leakage magnetic shielding device and method for controlling an elevator transformer;

[0047] It includes a pitch-adjusting slot 14, a horizontal pitch-adjusting seat 3 and a fitting shielding plate 4. The top of the mounting base 1 is symmetrically provided with a pitch-adjusting slot 14. The inner side of the pitch-adjusting slot 14 is movably provided with a horizontal pitch-adjusting seat 3. The top of the horizontal pitch-adjusting seat 3 is provided with a fitting shielding assembly. The fitting shielding assembly includes a fitting shielding plate 4, a docking plate 29 and a fitting pad 30. The fitting shielding plate 4 is installed on the top of the horizontal pitch-adjusting seat 3. A buffer damper 27 is installed on the outer side of the fitting shielding plate 4. The docking plate 29 is installed on the working end of the buffer damper 27. The fitting pad 30 is installed on the outer side of the docking plate 29. A contact sensor 28 is installed on the outer side of the fitting shielding plate 4, and the contact sensor 28 cooperates with the docking plate 29. A threaded hole 16 is opened on the outer side of the mounting base 1. A threaded rod 17 is installed on the inner side of the threaded hole 16. The output end of the threaded rod 17 is connected to the outer end of the horizontal pitch-adjusting seat 3. An operating panel 18 is installed on the outer end of the threaded rod 17. A transformer slot 13 is opened at the center of the top of the mounting base 1.

[0048] The elevator transformer is placed inside the transformer slot 13, and the transformer slot 13 limits it. The operating disk 18 is manually rotated to drive the horizontal adjustable seat 3 to move. The horizontal adjustable seat 3 slides inside the adjustable slot 14 under the threaded transmission of the threaded rod 17. After the bonding pad 30 contacts the outer end of the elevator transformer, it pushes the docking plate 29 to squeeze the contact sensor 28. The signal of the contact sensor 28 is transmitted to the shielding processor 11 to prompt the staff to stop rotating the operating disk 18. The two groups of bonding shielding plates 4 are installed in place in turn. When the bonding shielding plate 4 is tightly fitted with the elevator transformer, it can more effectively absorb and reflect the leakage magnetic field, reduce the propagation of the leakage magnetic field to the outside, and prevent the electromagnetic field generated by the elevator transformer from interfering with external equipment and systems. The bonding shielding plate 4 is tightly fitted with the elevator transformer to provide a better heat conduction path, which helps the transformer to dissipate heat more effectively. When the elevator transformer and the leakage magnetic shielding device are subjected to external mechanical vibration during operation, the buffer damper 27 buffers the impact and shaking, ensuring that the bonding shielding plate 4 is stably fitted with the elevator transformer while having a certain protective effect on the elevator transformer.

[0049] See also Figure 2 , Figure 3 , Figure 4 and Figure 6 , a leakage magnetic shielding device and method for controlling an elevator transformer;

[0050] The horizontal distance adjusting seat 3 includes a fastening groove 25 and a locking cover 5. The top of the horizontal distance adjusting seat 3 is provided with a disassembly groove 24, and the bottom end of the shielding plate 4 is inserted into the inner side of the disassembly groove 24. The other end of the horizontal distance adjusting seat 3 is provided with a fastening groove 25, and the fastening groove 25 is connected with the disassembly groove 24. The inner side of the fastening groove 25 is threadedly installed with a fastening bolt 26, and the fastening bolt 26 passes through the inner side of the disassembly groove 24. The inner side of the distance adjusting groove 14 is provided with an adjusting locking The locking assembly includes a locking cover 5, an anti-skid pad 32 and a locking plug plate 33. The locking cover 5 is detachably mounted on the top of the threaded rod 17. The anti-skid pad 32 is mounted on the inner side of the locking cover 5, and the anti-skid pad 32 cooperates with the threaded rod 17. The locking plug plate 33 is mounted on the bottom end of the locking cover 5. A locking slot 15 is provided on the bottom wall of the distance adjustment slot 14, and the locking plug plate 33 is engaged with the inner side of the locking slot 15. A lifting ring 31 is installed on the top of the locking cover 5.

[0051] After the bottom end of the fitted shielding plate 4 is inserted into the inner side of the disassembly groove 24, the fastening bolts 26 are used to stabilize the connection between the two, so as to facilitate maintenance and replacement of the fitted shielding plate 4 after failure. After the fitted shielding plate 4 is adjusted into place, the locking plug plate 33 is inserted into the inner side of the locking slot 15, and the locking cover 5 limits the threaded rod 17. The anti-slip pad 32 contacts the upper surface of the threaded rod 17 to prevent the threaded rod 17 from accidentally turning over inside the threaded hole 16 to change the position of the horizontal distance adjusting seat 3 and the fitted shielding plate 4. The locking cover 5 is pulled by the lifting ring 31 to disengage the locking plug plate 33 from the locking slot 15, so as to realize the disassembly of the adjustment locking assembly, release the limit on the position of the fitted shielding plate 4, and facilitate subsequent operations.

[0052] See also Figure 1 , Figure 2 and Fig. 9 , a leakage magnetic shielding device and method for controlling an elevator transformer;

[0053] It includes a mounting base 1, a shielding shell 2 and a shielding processor 11, wherein an inspection port 8 is provided through the front of the shielding shell 2, a flip sealing plate 9 is installed on the top of the mounting base 1 through a rotating shaft, and the flip sealing plate 9 cooperates with the inspection port 8, a mounting bolt 10 is installed through the front of the flip sealing plate 9, an assembly column 12 is installed on the top of the mounting base 1, an assembly groove 19 is provided at the bottom of the shielding shell 2, and the assembly column 12 is plugged into the inner side of the assembly groove 19, a top shielding plate 20 is installed on the inner side of the top of the shielding shell 2, a thermal insulation pad 21 is installed on the inner wall of the shielding shell 2, a temperature and humidity sensor 22 is installed on the inner wall of the shielding shell 2, an electric heating plate 23 is installed on the inner side of the top of the shielding shell 2, and a shielding processor 11 is installed on the outer side of the shielding shell 2, the shielding processor 11 is composed of a shielding drive module and an image receiving module, and the image receiving module is electrically connected to a temperature comparison unit and a humidity comparison unit;

[0054] The elevator transformer in the shielding shell 2 is inspected through the inspection port 8, the flip sealing plate 9 is used to seal and protect the inspection port 8, the installation bolts 10 ensure the stability between the flip sealing plate 9 and the inspection port 8, the assembly groove 19 and the assembly column 12 are docked and installed to achieve the docking installation between the shielding shell 2 and the mounting base 1, the thermal insulation pad 21 can effectively reduce the transfer of heat to the surrounding environment, reduce the thermal impact of the shielding layer on the surrounding environment while reducing energy loss, the temperature and humidity sensor 22 monitors the temperature and humidity in the shielding device in real time and transmits the signal to the shielding processor 11, the internal humidity of the leakage magnetic shielding device will be reduced after the heat dissipation is completed, and the electric heating plate 23 will work when the humidity is still higher than the preset humidity value to reduce its relative humidity by heating the air.

[0055] See also Figure 1 , Figure 2 and Figure 7, a leakage magnetic shielding device and method for controlling an elevator transformer;

[0056] It includes a vent 47, a heat dissipation port 6 and a sealing retainer 36. The outer side of the shielding shell 2 is provided with a vent 47, an exhaust fan 48 is installed on the inner side of the vent 47, an electric valve cover 49 is installed on the outer end of the vent 47, the outer side of the shielding shell 2 is provided with a heat dissipation port 6, a bottom slot 34 is provided on the bottom wall of the heat dissipation port 6, a lifting handle 35 is installed on the inner side of the bottom slot 34, a sealing retainer 36 is installed on the telescopic end of the lifting handle 35, a top slot 37 is provided on the top wall of the heat dissipation port 6, and the top slot 37 cooperates with the sealing retainer 36, and a conductive metal mesh 38 is installed on the inner side of the heat dissipation port 6;

[0057] The electric valve cover 49 seals the vent 47 to prevent outside air from entering the shielding shell 2 through the gap between the vent 47 and the exhaust fan 48 when the leakage magnetic shielding device has not been heat-dissipated. When the temperature inside the shielding shell 2 is higher than the preset value, the electric valve cover 49 and the exhaust fan 48 are opened in sequence, and the lifting handle 35 is extended and retracted to push the sealing retaining frame 36. The sealing retaining frame 36 moves to the inside of the top slot 37 and is accommodated while releasing the seal of the heat dissipation port 6. The outside air enters the shielding shell 2 after being filtered by the conductive metal mesh 38 and cooperates with the exhaust fan 48 to promote the air flow inside the shielding device. The heat is discharged through the vent 47 to dissipate the heat inside the shielding shell 2. The conductive metal mesh 38 can reduce the possibility of external electromagnetic fields entering the shielding device through the heat dissipation port 6, filter out electromagnetic noise and interference signals entering through the heat dissipation port 6, and maintain the stability of the electromagnetic environment inside the leakage magnetic shielding device.

[0058] See also Figure 1 , Figure 2 , Figure 7 and Figure 8 , a leakage magnetic shielding device and method for controlling an elevator transformer;

[0059] It includes a heat dissipation port 6, a threaded barrel 7 and a dehumidification cover 43. The outer side of the shielding shell 2 is provided with a heat dissipation port 6, and a conductive metal mesh 38 is installed on the inner side of the heat dissipation port 6. A threaded groove 39 is provided on the inner wall of the shielding shell 2, and a ventilation and dehumidification component is provided on the inner side of the threaded groove 39. The ventilation and dehumidification component includes a threaded barrel 7, a dehumidification cover 43, a micro motor 41 and a gear plate 42. The threaded barrel 7 is installed on the inner side of the threaded groove 39 through a thread, and the dehumidification cover 43 is installed on the other end of the threaded barrel 7 through a rotating shaft. An embedded groove 40 is provided on the inner wall of the shielding shell 2, and the micro motor 41 is installed on the inner side of the embedded groove 40. The gear plate 42 is installed on the output end of the micro motor 41. A transmission tooth groove 44 is provided on the outer side of the dehumidification cover 43, and the transmission tooth groove 44 cooperates with the gear plate 42. Hygroscopic particles 45 are placed on the inner side of the dehumidification cover 43, and a filter cover plate 46 is detachably installed on the outer end of the dehumidification cover 43;

[0060] The threaded barrel 7 and the threaded groove 39 are detachably connected by threads, which is convenient for regular replacement of the hygroscopic particles 45. When the gas after dust filtration circulates inside the dehumidification cover 43, the hygroscopic particles 45 absorb moisture in the gas, and the treated gas enters the shielding shell 2 through the filter cover 46 for penetration and heat dissipation. The threaded barrel 7 is connected to the dehumidification cover 43 through a rotating shaft, and the dehumidification cover 43 can rotate axially relative to the threaded barrel 7. The embedded groove 40 provides an installation position for the micro motor 41. After the hygroscopic particles 45 in the dehumidification cover 43 are used for a long time, the micro motor 41 drives the gear plate 42 to rotate, and the gear plate 42 cooperates with the transmission tooth groove 44 on the outside of the dehumidification cover 43 to drive the dehumidification cover 43 to flip, and the hygroscopic particles 45 are stirred to ensure a good adsorption effect. The outer end of the dehumidification cover 43 is snap-connected with the filter cover 46, which is convenient for removing the filter cover 46 and replacing the hygroscopic particles 45.

[0061] The shielding steps of the leakage magnetic shielding device are as follows:

[0062] S1. First, place the elevator transformer inside the transformer slot 13, insert the bottom end of the fitting shielding plate 4 into the inside of the disassembly slot 24, and use the fastening bolts 26 to stabilize the connection between the two. Manually turn the operating disk 18 to drive the horizontal spacing seat 3 to move. The horizontal spacing seat 3 slides inside the spacing slot 14 under the threaded transmission of the threaded rod 17. After the fitting pad 30 contacts the outer end of the elevator transformer, it pushes the docking plate 29 to squeeze the contact sensor 28, and installs the two sets of fitting shielding plates 4 in place in turn.

[0063] S2, insert the locking plug plate 33 into the inner side of the locking slot 15, the locking cover 5 limits the threaded rod 17, and the anti-skid pad 32 contacts the upper surface of the threaded rod 17 to prevent the threaded rod 17 from accidentally turning over inside the threaded hole 16 to change the position of the horizontal spacing seat 3 and the fitting shielding plate 4, which will adversely affect the performance of the leakage magnetic shielding device;

[0064] S3. When the magnetic flux leakage shielding device is working normally, the temperature and humidity sensor 22 monitors the temperature and humidity inside the shielding shell 2. When it is detected that the internal temperature is higher than the preset value, the electric valve cover 49 and the exhaust fan 48 are opened in sequence, and the lifting handle 35 is extended and retracted to push the sealing frame 36. The sealing frame 36 moves to the inside of the top groove 37 to release the seal of the heat dissipation port 6. The outside air enters the shielding shell 2 after being filtered by the conductive metal mesh 38 and cooperates with the exhaust fan 48 to promote the air flow inside the shielding device. The heat is discharged through the vent 47 to achieve the dissipation of heat inside the shielding shell 2.

[0065] In step S2, the following steps are also included:

[0066] S21, docking the assembly groove 19 with the assembly column 12 to achieve docking installation between the shielding shell 2 and the installation base 1;

[0067] In step S3, the following steps are also included:

[0068] S31, the conductive metal mesh 38 filters dust in the external air, and the hygroscopic particles 45 absorb moisture in the gas when the filtered gas flows inside the dehumidification cover 43, and the treated gas enters the shielding shell 2 through the filter cover 46 for penetration and heat dissipation;

[0069] S32. After the hygroscopic particles 45 in the dehumidification cover 43 have been used for a long time, the micro motor 41 drives the gear plate 42 to rotate, and the gear plate 42 cooperates with the transmission tooth groove 44 on the outside of the dehumidification cover 43 to drive the dehumidification cover 43 to flip, and the hygroscopic particles 45 are stirred to ensure a good adsorption effect.

[0070] Working principle: When using this device, first place the elevator transformer inside the transformer slot 13, insert the bottom end of the fitting shielding plate 4 into the inside of the disassembly slot 24, and then use the fastening bolts 26 to stabilize the connection between the two. Manually turn the operating disk 18 to drive the horizontal spacing seat 3 to move. The horizontal spacing seat 3 slides inside the spacing slot 14 under the threaded transmission of the threaded rod 17. After the fitting pad 30 contacts the outer end of the elevator transformer, it pushes the docking plate 29 to squeeze the contact sensor 28, and installs the two sets of fitting shielding plates 4 in place in turn.

[0071] The locking plug plate 33 is inserted into the inner side of the locking slot 15, the locking cover 5 limits the threaded rod 17, and the anti-skid pad 32 contacts the upper surface of the threaded rod 17 to prevent the threaded rod 17 from accidentally turning over inside the threaded hole 16 to change the position of the horizontal spacing seat 3 and the fitting shielding plate 4, which will adversely affect the performance of the leakage magnetic shielding device. The assembly slot 19 is docked with the assembly column 12 to achieve docking between the shielding shell 2 and the mounting base 1;

[0072] When the leakage magnetic shielding device is working normally, the temperature and humidity sensor 22 monitors the temperature and humidity inside the shielding shell 2. When it is detected that the internal temperature is higher than the preset value, the electric valve cover 49 and the exhaust fan 48 are opened in sequence, and the lifting handle 35 is extended and retracted to push the sealing frame 36. The sealing frame 36 moves to the inside of the top slot 37 to release the seal of the heat dissipation port 6. The outside air enters the shielding shell 2 after being filtered by the conductive metal mesh 38 and cooperates with the exhaust fan 48 to promote the air flow inside the shielding device. The heat is discharged through the vent 47 to achieve the shielding shell 2. The internal heat is dissipated, and the conductive metal mesh 38 filters the dust in the external gas. When the filtered gas circulates inside the dehumidification cover 43, the hygroscopic particles 45 adsorb the moisture in the gas. The treated gas enters the shielding shell 2 through the filter cover 46 for penetration and heat dissipation. After the hygroscopic particles 45 in the dehumidification cover 43 are used for a long time, the micro motor 41 drives the gear plate 42 to rotate. The gear plate 42 cooperates with the transmission tooth groove 44 on the outside of the dehumidification cover 43 to drive the dehumidification cover 43 to flip, and the hygroscopic particles 45 are stirred to ensure a good adsorption effect.

[0073] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A magnetic flux leakage shielding device for controlling an elevator transformer, comprising a mounting base (1), a shielding shell (2) and a horizontal spacing seat (3), characterized in that: A shielding shell (2) is installed on the top of the mounting base (1), and a distance adjustment slot (14) is symmetrically provided on the top of the mounting base (1), and a horizontal distance adjustment seat (3) is movably installed inside the distance adjustment slot (14); A fitting shielding assembly is arranged on the top of the horizontal distance adjusting seat (3), the fitting shielding assembly comprising a fitting shielding plate (4), a docking plate (29) and a fitting pad (30), the fitting shielding plate (4) is mounted on the top of the horizontal distance adjusting seat (3), a buffer damper (27) is mounted on the outer side of the fitting shielding plate (4), the docking plate (29) is mounted on the working end of the buffer damper (27), the fitting pad (30) is mounted on the outer side of the docking plate (29), a contact sensor (28) is mounted on the outer side of the fitting shielding plate (4), and the contact sensor (28) cooperates with the docking plate (29); The outer side of the mounting base (1) is provided with a threaded hole (16), the inner side of the threaded hole (16) is threadedly mounted with a threaded rod (17), and the output end of the threaded rod (17) is connected to the outer end of the horizontal spacing seat (3), and the outer end of the threaded rod (17) is mounted with an operating panel (18), the top of the horizontal spacing seat (3) is provided with a disassembly groove (24), and the bottom end of the contact shielding plate (4) is plugged into the inner side of the disassembly groove (24), the other end of the horizontal spacing seat (3) is provided with a fastening groove (25), and the fastening groove (25) is connected to the disassembly groove (24), and a fastening bolt (26) is threadedly mounted on the inner side of the fastening groove (25), and the fastening bolt (26) passes through the inner side of the disassembly groove (24); An adjusting locking assembly is arranged on the inner side of the pitch adjusting groove (14), and the adjusting locking assembly comprises a locking cover (5), an anti-skid pad (32) and a locking plug plate (33). The locking cover (5) is detachably mounted on the top of the threaded rod (17). The anti-skid pad (32) is mounted on the inner side of the locking cover (5), and the anti-skid pad (32) matches the threaded rod (17). The locking plug plate (33) is mounted on the bottom end of the locking cover (5). A locking slot (15) is provided on the bottom wall of the pitch adjusting groove (14), and the locking plug plate (33) is engaged with the inner side of the locking slot (15). A lifting ring (31) is mounted on the top of the locking cover (5).

2. A leakage magnetic shielding device for controlling an elevator transformer according to claim 1, characterized in that: The front side of the shielding shell (2) is provided with an inspection opening (8), the top of the mounting base (1) is provided with a flip sealing plate (9) via a rotating shaft, and the flip sealing plate (9) cooperates with the inspection opening (8), the front side of the flip sealing plate (9) is provided with a mounting bolt (10), the top of the mounting base (1) is provided with an assembly column (12), the bottom of the shielding shell (2) is provided with an assembly groove (19), and the assembly column (12) is plugged into the inner side of the assembly groove (19), and a transformer groove (13) is provided at the center of the top of the mounting base (1).

3. A leakage magnetic shielding device for controlling an elevator transformer according to claim 2, characterized in that: A top shielding plate (20) is installed on the inner side of the top of the shielding shell (2), a thermal insulation pad (21) is installed on the inner wall of the shielding shell (2), a temperature and humidity sensor (22) is installed on the inner wall of the shielding shell (2), an electric heating plate (23) is installed on the inner side of the top of the shielding shell (2), a vent (47) is opened through the outer side of the shielding shell (2), an exhaust fan (48) is installed on the inner side of the vent (47), and an electric valve cover (49) is installed on the outer end of the vent (47).

4. A leakage magnetic shielding device for controlling an elevator transformer according to claim 3, characterized in that: The outer side of the shielding shell (2) is provided with a heat dissipation port (6) extending therethrough, a bottom slot (34) is provided on the bottom wall of the heat dissipation port (6), a lifting handle (35) is installed on the inner side of the bottom slot (34), a sealing retaining frame (36) is installed on the telescopic end of the lifting handle (35), a top slot (37) is provided on the top wall of the heat dissipation port (6), and the top slot (37) cooperates with the sealing retaining frame (36), and a conductive metal mesh (38) is installed on the inner side of the heat dissipation port (6).

5. A leakage magnetic shielding device for controlling an elevator transformer according to claim 4, characterized in that: The inner wall of the shielding shell (2) is provided with a threaded groove (39), and a ventilation and dehumidification assembly is arranged on the inner side of the threaded groove (39). The ventilation and dehumidification assembly comprises a threaded barrel (7), a dehumidification cover (43), a micro motor (41) and a gear plate (42). The threaded barrel (7) is installed on the inner side of the threaded groove (39) by means of a thread, and the dehumidification cover (43) is installed on the other end of the threaded barrel (7) by means of a rotating shaft. An embedded groove (40) is provided on the inner wall of the shielding shell (2), and the micro motor (41) is installed on the inner side of the embedded groove (40). The gear plate (42) is installed on the output end of the micro motor (41). A transmission tooth groove (44) is provided on the outer side of the dehumidification cover (43), and the transmission tooth groove (44) cooperates with the gear plate (42). Hygroscopic particles (45) are placed on the inner side of the dehumidification cover (43), and a filter cover plate (46) is detachably installed on the outer end of the dehumidification cover (43).

6. The leakage magnetic shielding device for controlling an elevator transformer according to claim 1, characterized in that: A shielding processor (11) is installed on the outside of the shielding shell (2). The shielding processor (11) is composed of a shielding drive module and an image receiving module. The shielding drive module is bidirectionally electrically connected to the bonding shielding component, the electric heating plate (23), the exhaust fan (48), the lifting handle (35) and the micro motor (41). The image receiving module receives output signals from the temperature and humidity sensor (22) and the contact sensor (28). The image receiving module is electrically connected to a temperature comparison unit and a humidity comparison unit.

7. A shielding method for controlling a leakage magnetic shielding device of an elevator transformer according to claim 5, characterized in that: The shielding steps of the leakage magnetic shielding device are as follows: S1. First, place the elevator transformer inside the transformer slot (13), insert the bottom end of the fitting shielding plate (4) inside the disassembly slot (24), and use the fastening bolts (26) to stabilize the connection between the two. Manually turn the operating panel (18) to drive the horizontal spacing seat (3) to move. The horizontal spacing seat (3) slides inside the spacing slot (14) under the threaded transmission of the threaded rod (17). After the fitting pad (30) contacts the outer end of the elevator transformer, it pushes the docking plate (29) to squeeze the contact sensor (28), and the two sets of fitting shielding plates (4) are installed in place in turn. S2, inserting the locking plug plate (33) into the inner side of the locking slot (15), the locking cover (5) limits the threaded rod (17), and the anti-skid pad (32) contacts the upper surface of the threaded rod (17) to prevent the threaded rod (17) from accidentally turning over inside the threaded hole (16) to change the position of the horizontal spacing seat (3) and the fitting shielding plate (4), thereby adversely affecting the performance of the leakage magnetic shielding device; S3. When the magnetic flux leakage shielding device is operating normally, the temperature and humidity sensor (22) monitors the temperature and humidity inside the shielding shell (2). When it is detected that the internal temperature is higher than a preset value, the electric valve cover (49) and the exhaust fan (48) are opened in sequence, and the lifting handle (35) is extended and retracted to push the sealing frame (36). The sealing frame (36) moves to the inside of the top slot (37) to release the seal of the heat dissipation port (6). The outside air is filtered by the conductive metal mesh (38) and enters the shielding shell (2). The exhaust fan (48) cooperates to promote the air flow inside the shielding device, and the heat is discharged through the vent (47) to achieve the heat dissipation inside the shielding shell (2).

8. A shielding method for controlling a leakage magnetic shielding device of an elevator transformer according to claim 7, characterized in that: In the step S2, the following steps are also included: S21, docking the assembly groove (19) and the assembly column (12) to achieve docking installation between the shielding shell (2) and the installation base (1); In step S3, the following steps are also included: S31, the conductive metal mesh (38) filters dust in the external gas, and when the filtered gas circulates inside the dehumidification cover (43), the hygroscopic particles (45) adsorb moisture in the gas, and the treated gas enters the shielding shell (2) through the filter cover (46) to penetrate and dissipate heat; S32. After the moisture-absorbing particles (45) in the dehumidification cover (43) have been used for a long time, the micro motor (41) drives the gear plate (42) to rotate, and the gear plate (42) cooperates with the transmission tooth groove (44) on the outside of the dehumidification cover (43) to drive the dehumidification cover (43) to turn over, and the moisture-absorbing particles (45) are stirred to ensure a good adsorption effect.

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