CN116798743B - Elevator control transformer with good protection performance and use method thereof - Google Patents
Elevator control transformer with good protection performance and use method thereof Download PDFInfo
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- CN116798743B CN116798743B CN202311012582.0A CN202311012582A CN116798743B CN 116798743 B CN116798743 B CN 116798743B CN 202311012582 A CN202311012582 A CN 202311012582A CN 116798743 B CN116798743 B CN 116798743B
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- 238000000034 method Methods 0.000 title claims description 19
- 230000001681 protective effect Effects 0.000 claims abstract description 53
- 230000030279 gene silencing Effects 0.000 claims abstract description 41
- 230000035939 shock Effects 0.000 claims abstract description 21
- 239000011491 glass wool Substances 0.000 claims abstract description 13
- 238000010521 absorption reaction Methods 0.000 claims abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 51
- 238000001816 cooling Methods 0.000 claims description 40
- 230000008030 elimination Effects 0.000 claims description 40
- 238000003379 elimination reaction Methods 0.000 claims description 40
- 230000017525 heat dissipation Effects 0.000 claims description 33
- 239000000498 cooling water Substances 0.000 claims description 25
- 230000005855 radiation Effects 0.000 claims description 24
- 238000001125 extrusion Methods 0.000 claims description 20
- 239000000872 buffer Substances 0.000 claims description 11
- 238000010438 heat treatment Methods 0.000 claims description 11
- 239000000428 dust Substances 0.000 claims description 10
- 238000013016 damping Methods 0.000 claims description 7
- 239000012466 permeate Substances 0.000 claims description 6
- 238000004064 recycling Methods 0.000 claims description 4
- 230000006641 stabilisation Effects 0.000 claims description 2
- 238000011105 stabilization Methods 0.000 claims description 2
- 238000009414 blockwork Methods 0.000 abstract description 3
- 238000009434 installation Methods 0.000 description 12
- 230000000149 penetrating effect Effects 0.000 description 9
- 230000000694 effects Effects 0.000 description 6
- 230000008093 supporting effect Effects 0.000 description 4
- 238000009423 ventilation Methods 0.000 description 3
- 229920000742 Cotton Polymers 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B50/00—Energy efficient technologies in elevators, escalators and moving walkways, e.g. energy saving or recuperation technologies
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- Elevator Control (AREA)
Abstract
The invention discloses an elevator control transformer with good protection performance, which comprises a base, a protection box body and a silencing component, wherein the protection box body is arranged at the top end of a shock absorption column, the silencing component is arranged on the outer side of the protection box body, an electric sliding block is embedded and arranged on the outer side of a slide rail seat, an electric telescopic rod I is arranged on the outer side of the electric sliding block, and a connecting frame is arranged on the outer side of a silencing cylinder. According to the invention, the silencing assembly is arranged on the outer side of the protective box body, when noise reaches a preset value, the electric sliding block works on the sliding rail seat to move to drive the silencing barrel to adjust the vertical position, the silencing barrel and the radiating port are positioned at the same horizontal position, the electric telescopic rod works to enable the silencing barrel to move towards the direction close to the protective box body, the outer end of the silencing barrel is butted with the limiting groove to carry out silencing treatment on exhaust gas, and the sound absorbing plate and the glass wool plate are used for silencing the exhaust gas flow, so that noise generated when the gas flows is reduced.
Description
Technical Field
The invention relates to the technical field of elevator equipment, in particular to an elevator control transformer with good protection performance and a use method thereof.
Background
The elevator is used as a vertical lifting frame taking a motor as power, is provided with a box-shaped nacelle, can be used for bearing or carrying goods of a multi-storey building, is an important component part in a control system for realizing elevator operation, relates to the safety and stability problems of elevator operation, and is a device for changing alternating voltage by utilizing the principle of electromagnetic induction, and plays roles of voltage-current transformation, impedance transformation, isolation, voltage stabilization and the like.
The control transformer in the prior art has the following defects:
1. patent document CN217181963U discloses a fast annular power control transformer of heat dissipation, "including the base, the top of base is provided with annular power control transformer body, be provided with radiator unit on the base, radiator unit still includes the cooling tube, the outside fixedly connected with connecting seat of cooling tube, the bottom fixedly connected with connecting plate of connecting seat, the outside swing joint of connecting plate has a seat of drawing, the outside cover of drawing the seat is equipped with the spring, the bottom fixedly connected with inserted bar of seat of drawing, the bottom fixedly connected with of base is the mounting panel of two, two fixedly connected with ventilation frame between the mounting panel, fixedly connected with moisture absorption board between the left and right sides inner wall of ventilation frame. This fast annular power control transformer dispels heat, through the radiating component who sets up on the base, conveniently dispel the heat to annular power control transformer body through cooling tube and fan when using. The use position of the control transformer connecting seat is fixed, the control transformer connecting seat cannot be fixed according to the position adjustment requirement of the cooling pipe, and the stability of the cooling pipe in use cannot be guaranteed.
2. Patent document CN111091954a discloses an elevator control transformer, "comprising a placement box, a transformer body and a heat dissipation mechanism; the transformer body is arranged in the placement box, and a first radiating plate and a second radiating plate are respectively arranged on two sides of the transformer body; the heat dissipation mechanism comprises a water supply container, a first heat exchange tube and a second heat exchange tube, wherein the first heat exchange tube and the second heat exchange tube are arranged in a placement box, a communicating pipe is arranged between the lower ends of the first heat exchange tube and the second heat exchange tube, heat conducting plates are arranged between the first heat exchange tube and the first heat dissipation plate and between the second heat exchange tube and the second heat dissipation plate, the heat conducting plates are arranged at equal intervals vertically, the water supply container is arranged on a top plate, a water outlet pipe and a water return pipe are connected onto the water supply container, a circulating water pump is arranged on the water outlet pipe, the upper end of the first heat exchange tube penetrates through the top plate to be connected with the water outlet pipe, and the upper end of the second heat exchange tube penetrates through the top plate to be connected with the water return pipe. The elevator control transformer is reasonable in structure, and solves the problem that the existing transformer is poor in heat dissipation effect. The use specification of the heat conducting plate of the control transformer is fixed, the use range of the heat conducting plate cannot be adjusted according to different specifications of the transformer and the heat radiating plate, and the contact range of the heat conducting plate and the heat radiating plate is small, so that the heat conducting effect of the heat conducting plate is reduced.
3. Patent document CN215527412U discloses an ac/dc elevator control transformer, "including transformer box, fixed chassis, lifting chassis, elevating system, disassembly body and transformer tank, be equipped with the transformer chamber in the transformer box, the fixed chassis is fixed to be located the transformer chamber lower wall, the chassis chamber has been seted up in the fixed chassis, lifting chassis locates the chassis intracavity and can slide from top to bottom, spacing slider chamber has been seted up to the left and right sides in the lifting chassis, two spacing slider intracavity all sliding connection has spacing slider about, two spacing sliders are close to each other and are fixed to be equipped with the elastic component between one side terminal surface and the spacing slider intracavity wall about, this scheme can warp the base under the transformer, under the circumstances of guaranteeing not influencing the supporting effect to the transformer, reduce the area of contact between base and the transformer further, and then improve the radiating effect of transformer. The control transformer does not have an external heat dissipation structure, and the high internal temperature of the transformer tank cannot ensure good service performance of the transformer oil tank.
4. Patent document CN214588412U discloses a high-efficient low power consumption ladder control transformer, "including the installation shell, both ends movable mounting has the apron around the installation shell, the avris movable mounting of apron has connecting button, connecting button and installation shell swing joint, both ends fixed mounting has the electrode post about installation shell upper end middle part, the inside bottom fixed mounting of installation shell has the back cushion, the upper end fixed mounting of back cushion has the transformer body, the upper end fixed mounting of transformer body has the voltage regulator, both ends fixed mounting has even utmost point post about the voltage regulator, even utmost point post and through voltage regulator and transformer body electric connection, even utmost point post and electrode post electric connection, the electrode post is the both ends about the positive negative pole distributes in the upper end middle part. The high-efficiency low-power-consumption elevator control transformer has low voltage consumption in a state of high working efficiency, reduces energy consumption and improves the energy conservation performance of the elevator control transformer. The control transformer can not carry out noise elimination treatment on the heat gas discharged by the heat dissipation groove, and is easy to cause noise pollution to the external environment.
Disclosure of Invention
The invention aims to provide an elevator control transformer with good protection and a use method thereof, so as to solve the problems in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions: the elevator control transformer with the good protection performance comprises a base, a protective box body and a silencing assembly, wherein a shock absorption column is arranged at the top of the base, the top end of the shock absorption column is provided with the protective box body, the outer side of the protective box body is symmetrically provided with a groove, the outer side of the protective box body is provided with the silencing assembly, the silencing assembly comprises a sliding rail seat, an electric telescopic rod I and a silencing cylinder, the sliding rail seat is relatively arranged at the inner side of the groove, the outer side of the sliding rail seat is embedded with an electric sliding block, the outer side of the electric sliding block is provided with the electric telescopic rod I, the output end of the electric telescopic rod I is connected with the silencing cylinder through a connecting frame, and the outer side of the silencing cylinder is provided with the connecting frame;
the installation seat is installed on the outer side of the base, the operation door is installed on the front side of the protection box body through a hinge, the air inlet is formed in the front side of the operation door in a penetrating manner, the dust screen is installed on the inner side of the air inlet, the heat radiation opening is formed in the outer side of the protection box body in a penetrating manner, the heat radiation fan is installed on the inner side of the heat radiation opening, the limit groove is formed in the outer side of the protection box body, the limit groove is located the outer side of the heat radiation opening, the sliding groove is formed in the inner wall of the heat radiation opening, the penetrating opening is formed in the top of the protection box body, the temperature sensor is installed on the inner wall of the protection box body, the noise sensor is installed on the outer side of the protection box body, the noise sensor is positioned above the heat radiation port, the front surface of the operation door is provided with a controller, the interior of the controller is provided with a receiving module, the receiving module is used for receiving output signals of the temperature sensor and the noise sensor, the interior of the controller is provided with a control module, the output end of the control module is connected with the shielding component, the noise elimination component, the water cooling component and the input end of the electric telescopic rod II, the inner wall of the noise elimination cylinder is provided with a glass wool board, the opposite sides of the glass wool board are provided with sound absorbing boards, and the center position of the outer side of each sound absorbing board is provided with a circulation port;
the top of the protection box body is provided with a shielding component, the shielding component comprises a bracket, the top of the bracket is provided with a cylinder, the output end of the cylinder is provided with a shielding plate, the shielding plate penetrates through the inner side of the through opening and slides on the inner side of the sliding groove, the inner wall of the protection box body is symmetrically provided with an adjusting sleeve, the inner side of the adjusting sleeve is provided with a telescopic cylinder, the outer side of the adjusting sleeve is embedded with an adjusting bolt, the output end of the adjusting bolt is matched with the outer side of the telescopic cylinder, the outer end of the telescopic cylinder is provided with a fixing clamp, the fixing clamp is used for limiting a radiating pipe, and the inner side of the fixing clamp is provided with a wear-resisting pad;
the top of protection box is provided with water-cooling component, water-cooling component includes storage water tank and cooling tube, the refrigeration pipe is installed to the inboard of storage water tank, the circulating pump is installed at the top of storage water tank, the inboard at the protection box is installed to the cooling tube, the output of cooling tube is connected with the outside of storage water tank, and the input of cooling tube is connected with the output of circulating pump, the heat-conducting plate is installed in the outside of cooling tube, the storage tank has been seted up to the top and the bottom symmetry of heat-conducting plate, the mounting groove has been seted up on the inner wall of storage tank, electric telescopic handle second is installed to the inboard of mounting groove, auxiliary heat conduction piece movable mounting is in the inboard of storage tank, the jack-up groove has been seted up in the outside of heat-conducting plate, the attenuator is installed to the inboard of jack-up the groove, the outside of attenuator is provided with the extrusion spring, install the shock attenuation board on the diapire of protection box, the outside of transformer body has seted up the storage tank, the opening of heat-conducting plate has been seted up to the outside, the opening of heat-conducting plate and the inboard contacts with the shock attenuation board.
Preferably, the working steps of the elevator control transformer are as follows:
s1, firstly, installing a transformer body in a protective box body, adjusting the use positions of a radiating pipe and a heat conducting plate according to different specifications of the transformer body, enabling the heat conducting plate to be clamped on the inner side of an opening and then enabling the damping plate to be propped against the inner side of a radiating plate on the outer side of the transformer body, loosening an adjusting bolt by a worker to release the limit of a telescopic cylinder, changing the extending length of the telescopic cylinder in an adjusting sleeve to achieve limit fixing of a fixing clamp on the radiating pipe, and screwing the adjusting bolt again to achieve limit fixing of the telescopic cylinder;
s2, the temperature sensor monitors the internal temperature of the protective box in real time, when the highest temperature reaches a preset value, the water cooling assembly starts to work, the circulating pump operates to extract cooling water in the water storage tank, the cooling water flows through the radiating pipes to take away heat absorbed by the heat conducting plates and the auxiliary heat conducting blocks so as to cool the transformer body, the used cooling water flows back into the water storage tank through the radiating pipes, and the refrigerating pipes work to cool the used cooling water so as to ensure the recycling of the cooling water;
s3, when the temperature in the protective box body is still at the preset temperature after the water cooling assembly works for a specified time, the control module of the controller controls the shielding assembly to work, the air cylinder operates to drive the shielding plate to slide upwards on the inner side of the sliding groove to move upwards to penetrate through the inner side of the through hole so as to remove shielding of the heat radiation opening, the heat radiation fan operates to discharge heat in the protective box body to the outside through the heat radiation opening after the shielding plate is in place, and outside air enters the protective box body through the air inlet after being filtered by the dust screen so as to permeate and radiate the protective box body and the transformer body;
s4, the noise sensor monitors gas noise exhausted through the heat radiation port, when the noise reaches a preset value, the noise sensor transmits a signal to the controller, a receiving module in the controller receives the signal and controls the silencing assembly to work, the electric sliding block works on the sliding rail seat to move so as to drive the silencing barrel to carry out position adjustment in the vertical direction, and the silencing barrel and the heat radiation port are positioned at the same horizontal position, and the electric telescopic rod works so that the silencing barrel moves towards the direction close to the protective box body, and the outer end of the silencing barrel is butted with the limiting groove to carry out silencing treatment on exhaust gas.
Preferably, in the step S1, the method further includes the following steps:
s11, the electric telescopic rod II works to push the auxiliary heat conducting block to slide inside the containing groove and move outwards, and the auxiliary heat conducting block and the heat conducting plate are matched to realize omnibearing contact with the inner wall of the heat radiating plate;
s12, when the transformer body shakes in the working process, the damping plate primarily buffers the impact force and transmits the shaking impact force to the extrusion spring, the extrusion spring buffers the impact force of the transformer body in the horizontal direction through self elasticity, and the damper prevents the extrusion spring from shaking back and forth at the inner side of the propping groove;
in the step S4, the method further includes the following steps:
s41, the sound absorbing plate and the glass wool plate are used for silencing exhaust air flow, noise generated when the air flows is reduced, the air flows through the circulation port and is discharged to the outside from the other end of the silencing barrel, and noise pollution caused by air discharge to the outside environment is reduced.
Compared with the prior art, the invention has the following beneficial effects:
according to the invention, the fixing clamp is arranged at the outer end of the telescopic cylinder, the use positions of the radiating pipe and the heat conducting plate are adjusted according to different specifications of the transformer body, the heat conducting plate is clamped on the inner side of the opening, the rear shock absorbing plate is propped against the inner side of the radiating plate on the outer side of the transformer body, a worker unscrews the adjusting bolt to release the limit of the telescopic cylinder, the extending length of the telescopic cylinder in the adjusting sleeve is changed to realize the limit fixing of the fixing clamp on the radiating pipe, the fixing clamp is fixed according to the position adjustment requirement of the radiating pipe, the stability of the radiating pipe in use is ensured, and the transformer body is convenient to replace without inconvenience in installation of the water cooling assembly.
According to the invention, the auxiliary heat conducting block is arranged at the output end of the electric telescopic rod II, the electric telescopic rod II works to push the auxiliary heat conducting block to slide on the inner side of the accommodating groove and move outwards, the auxiliary heat conducting block and the heat conducting plate are matched to realize omnibearing contact with the inner wall of the heat radiating plate, the shock absorbing plate primarily buffers impact force and transmits the shaking impact force to the extrusion spring in the working process of the transformer body, the extrusion spring buffers the impact force of the transformer body in the horizontal direction through self elasticity, the application range of the heat conducting plate is adjusted according to different specifications of the transformer body and the heat radiating plate, the contact range of the heat conducting plate and the heat radiating plate is enlarged, the heat conducting effect of the heat conducting plate is enhanced, and the heat radiating effect of the transformer body is better.
According to the invention, the shielding component is arranged at the top of the protective box body, the circulating pump operates to extract cooling water in the water storage tank, the cooling water flows through the radiating pipes to take away heat absorbed by the heat conducting plate and the auxiliary heat conducting block to cool the transformer body, the cylinder operates to drive the shielding plate to slide upwards at the inner side of the sliding groove to move upwards to penetrate through the inner side of the through hole so as to release shielding of the heat radiating hole, the heat in the protective box body is discharged to the outside through the heat radiating hole after the shielding plate is in place, external air enters the protective box body through the air inlet after being filtered by the dustproof net to permeate and radiate the protective box body and the transformer body, and good service performance of the transformer body is ensured by double heat radiation of the transformer body and the protective box body.
According to the invention, the noise elimination assembly is arranged on the outer side of the protection box body, the noise sensor monitors the noise of the gas exhausted through the heat radiation opening, when the noise reaches a preset value, the electric sliding block works on the sliding rail seat to move to drive the noise elimination cylinder to adjust the position in the vertical direction, the noise elimination cylinder and the heat radiation opening are positioned at the same horizontal position, the electric telescopic rod works to enable the noise elimination cylinder to move towards the direction close to the protection box body, the outer end of the noise elimination cylinder is butted with the limit groove to carry out noise elimination treatment on the exhausted gas, the sound absorption plate and the glass wool plate carry out noise elimination on the exhausted gas flow, the noise generated when the gas flows is reduced, and the noise pollution caused by the gas exhaust to the external environment is reduced.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic diagram of the internal structure of the front surface of the protection box of the present invention;
FIG. 3 is a schematic view of the internal structure of the sound damping cylinder of the present invention;
fig. 4 is a schematic perspective view of a transformer body according to the present invention;
FIG. 5 is a schematic view of the internal structure of the front surface of the heat conducting plate according to the present invention;
FIG. 6 is a schematic perspective view of a fixing clip according to the present invention;
FIG. 7 is an enlarged schematic view of the structure of the present invention at A;
FIG. 8 is an enlarged schematic view of the structure of the present invention at B;
FIG. 9 is a diagram of a controller system of the present invention;
fig. 10 is a flowchart of the operation of the present invention.
In the figure: 1. a base; 2. a protective box body; 3. a shielding assembly; 4. a sound damping assembly; 5. a water cooling assembly; 6. an adjustment sleeve; 7. a transformer body; 8. a shock-absorbing column; 9. a mounting base; 10. an operation door; 11. an air inlet; 12. a dust screen; 13. a controller; 14. a groove; 15. a heat radiation port; 16. a heat dissipation fan; 17. a limit groove; 18. a sliding groove; 19. a through hole; 20. a temperature sensor; 21. a noise sensor; 22. a bracket; 23. a cylinder; 24. a shielding plate; 25. a slide rail seat; 26. an electric slide block; 27. an electric telescopic rod I; 28. a sound damping cylinder; 29. a connecting frame; 30. glass wool board; 31. a sound absorbing panel; 32. a flow port; 33. a water storage tank; 34. a refrigeration tube; 35. a circulation pump; 36. a heat radiating pipe; 37. a heat conductive plate; 38. a storage groove; 39. a mounting groove; 40. an electric telescopic rod II; 41. an auxiliary heat conducting block; 42. a top support groove; 43. a damper; 44. extruding a spring; 45. a shock absorbing plate; 46. a telescopic cylinder; 47. an adjusting bolt; 48. a fixing clamp; 49. a wear pad; 50. a heat dissipation plate; 51. an opening.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be configured and operated in the specific direction, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "provided," "connected," and the like are to be construed broadly, and may be fixedly connected or movably connected, or may be detachably connected or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Referring to fig. 1, 2 and 9, an embodiment of the present invention provides: an elevator control transformer with good protection and a use method thereof;
comprises a base 1, a protective box body 2 and a controller 13, a shock absorption column 8 is arranged at the top of the base 1, a mounting seat 9 is arranged at the outer side of the base 1, a protective box body 2 is arranged at the top end of the shock absorption column 8, a groove 14 is symmetrically arranged at the outer side of the protective box body 2, an operation door 10 is arranged at the front side of the protective box body 2 through a hinge, an air inlet 11 is arranged at the front side of the operation door 10 in a penetrating way, a dust screen 12 is arranged at the inner side of the air inlet 11, a heat radiation opening 15 is arranged at the outer side of the protective box body 2 in a penetrating way, a heat radiation fan 16 is arranged at the inner side of the heat radiation opening 15, a limit groove 17 is arranged at the outer side of the protective box body 2, a sliding groove 18 is arranged on the inner wall of the heat radiation opening 15, a penetrating opening 19 is arranged at the top of the protective box body 2, a temperature sensor 20 is arranged on the inner wall of the protective box body 2, a noise sensor 21 is arranged at the outer side of the protective box body 2, and noise sensor 21 is located the top of thermovent 15, external gas gets into the protection box 2 inside through air intake 11 and permeates the heat dissipation, dust in the dust screen 12 blocks external gas, shock column 8 slows down the vibrations that protection box 2 received when moving base 1, operate transformer body 7 and protection box 2 inside through operation door 10, stability when the shield 24 removes has been guaranteed to sliding tray 18, through-hole 19 provides the removal space for shield 24, controller 13 is installed in the front of operation door 10, the internally mounted of controller 13 has receiving module, receiving module is used for receiving the output signal of temperature sensor 20 and noise sensor 21, the internally mounted of controller 13 has control module, control module's output and shield assembly 3, noise elimination assembly 4 The water cooling assembly 5 is connected with the input end of the electric telescopic rod II 40, the temperature sensor 20 monitors the internal temperature of the protective box body 2 in real time, when the highest temperature reaches a preset value, the water cooling assembly 5 starts to work, the noise sensor 21 monitors the gas noise exhausted through the heat radiation port 15, when the noise reaches the preset value, the noise sensor 21 transmits signals to the controller 13, and a receiving module in the controller 13 receives the signals and controls the noise elimination assembly 4 to work.
Referring to fig. 1, 2, 3, 5, 7 and 8, an elevator control transformer with good protection and a method for using the same;
comprises a shielding component 3, a noise elimination component 4 and a water cooling component 5, wherein the shielding component 3 is arranged at the top of a protective box body 2, the shielding component 3 comprises a bracket 22, a cylinder 23 is arranged at the top of the bracket 22, a shielding plate 24 is arranged at the output end of the cylinder 23, the inner side of a penetrating opening 19 of the shielding plate 24 slides inside a sliding groove 18, the bracket 22 provides an installation position for the cylinder 23 and ensures the stability during operation, the cylinder 23 operates to drive the shielding plate 24 to slide inside the sliding groove 18 to move upwards to move the inner side of the penetrating opening 19 so as to remove the shielding of a heat dissipation opening 15, a heat dissipation fan 16 operates to discharge heat in the protective box body 2 to the outside through the heat dissipation opening 15 after the shielding plate 24 is in place, the noise elimination component 4 is arranged at the outer side of the protective box body 2, the noise elimination component 4 comprises a slide rail seat 25, an electric telescopic rod one 27 and a noise elimination cylinder 28, the slide rail seat 25 is relatively arranged at the inner side of a groove 14, an electric sliding block 26 is embedded and installed on the outer side of the sliding rail seat 25, an electric telescopic rod I27 is installed on the outer side of the electric sliding block 26, the output end of the electric telescopic rod I27 is connected with a silencing barrel 28 through a connecting frame 29, the connecting frame 29 is installed on the outer side of the silencing barrel 28, a glass wool board 30 is installed on the inner wall of the silencing barrel 28, a sound absorbing plate 31 is installed on the opposite side of the glass wool board 30, a ventilation opening 32 is arranged in the center of the outer side of the sound absorbing plate 31, the noise sensor 21 monitors the gas noise discharged through the heat dissipating opening 15, when the noise reaches a preset value, the electric sliding block 26 works on the sliding rail seat 25 to move to drive the silencing barrel 28 to adjust the position in the vertical direction, the electric telescopic rod I27 works to enable the silencing barrel 28 to move towards the direction close to the protective box 2 after the silencing barrel 28 and the heat dissipating opening 15 are at the same horizontal position, the outer end of the silencing tube 28 is butted with the limit groove 17 and then silencing the exhaust gas, the sound absorbing plate 31 and the glass wool board 30 are used for silencing the exhaust gas flow, noise generated when the gas flows is reduced, the position of the silencing tube 28 is automatically adjusted to realize the butt joint to ensure good heat dissipation effect of the heat dissipation port 15 and further silencing the noise, the top of the protection box body 2 is provided with the water cooling component 5, the water cooling component 5 comprises the water storage tank 33 and the heat dissipation tube 36, the inner side of the water storage tank 33 is provided with the refrigerating tube 34, the top of the water storage tank 33 is provided with the circulating pump 35, the heat dissipation tube 36 is arranged on the inner side of the protection box body 2, the input end of the heat dissipation tube 36 is connected with the output end of the circulating pump 35, the output end of the heat dissipation tube 36 is connected with the outer side of the water storage tank 33, the outer side of the heat dissipation tube 36 is provided with the heat conducting plate 37, the water storage tank 33 stores cooling water, the water storage tank 33 supports the circulating pump 35, the circulation pump 35 operates to extract cooling water in the water storage tank 33, the cooling water flows through the radiating pipe 36 to take away heat absorbed by the heat conducting plate 37 and the auxiliary heat conducting block 41 to cool the transformer body 7, the top and the bottom of the heat conducting plate 37 are symmetrically provided with the storage groove 38, the inner wall of the storage groove 38 is provided with the installation groove 39, the inner side of the installation groove 39 is provided with the electric telescopic rod II 40, the output end of the electric telescopic rod II 40 is provided with the auxiliary heat conducting block 41, the auxiliary heat conducting block 41 is movably arranged at the inner side of the storage groove 38, the outer side of the heat conducting plate 37 is provided with the top supporting groove 42, the inner side of the top supporting groove 42 is provided with the damper 43, the outer side of the damper 43 is provided with the extrusion spring 44, the outer end of the extrusion spring 44 is provided with the shock absorbing plate 45, the storage groove 38 stores the auxiliary heat conducting block 41, the installation groove 39 provides an installation position for the electric telescopic rod II 40, the work of electric telescopic link two 40 promotes supplementary heat conduction piece 41 and slides and move outside the inboard of accomodating groove 38, supplementary heat conduction piece 41 and heat conduction board 37 cooperation realize with the omnidirectional contact of heating panel 50 inner wall, shock attenuation board 45 carries out preliminary buffering to the impact force and will rock impact force and conduct to extrusion spring 44 when the transformer body 7 during operation produces to rock, extrusion spring 44 buffers the impact force on the transformer body 7 horizontal direction through self elasticity, the application range to heat conduction board 37 is adjusted according to transformer body 7 and the difference of heating panel 50 specification, the contact range of heat conduction board 37 and heating panel 50 has been increased.
Referring to fig. 2, 4 and 6, an elevator control transformer with good protection and a method for using the same;
including adjusting sleeve 6 and transformer body 7, the symmetry is installed on the inner wall of protection box 2 and is adjusted sleeve 6, telescopic tube 46 is installed to the inboard of adjusting sleeve 6, adjusting bolt 47 is installed in the outside gomphosis of adjusting sleeve 6, and the output of adjusting bolt 47 cooperatees with the outside of telescopic tube 46, fixed clip 48 is installed to the outer end of telescopic tube 46, and fixed clip 48 is used for spacing radiating tube 36, the inboard of fixed clip 48 is provided with wear pad 49, adjust the position of use of radiating tube 36 and heat-conducting plate 37 according to transformer body 7 specification difference, heat-conducting plate 37 joint is inboard at opening 51 back damper plate 45 and the inboard of heating panel 50 outside transformer body 7 offset, the staff unscrews adjusting bolt 47 and releases the spacing to telescopic tube 46, change telescopic tube 46 and realize the spacing fixed of fixed clip 48 to radiating tube 36 in the extension of adjusting sleeve 6, wear pad 49 has reduced the fixed clip 48 and causes the damage to the outer wall of radiating tube 36, install transformer body 7 on the diapire of protection box 2, transformer body 7 is installed in the outside of transformer body 7, the heating panel 50, the outside of heating panel 50 has the opening of heating panel 50, and the inside damper plate 37 produces the heat-conducting plate 50 to be contacted with the inside of the opening 50 at the inside of the opening 51, the inside damper plate 37, the inside of the transformer body 50 is contacted with the opening 50, the inside of the inside damper plate 37 is contacted with the heating panel 37, the inside of the opening 50.
The working steps of the elevator control transformer are as follows:
s1, firstly, installing a transformer body 7 in a protective box body 2, adjusting the use positions of a radiating pipe 36 and a heat conducting plate 37 according to different specifications of the transformer body 7, clamping the heat conducting plate 37 at the inner side of an opening 51, abutting a damping plate 45 against the inner side of a radiating plate 50 at the outer side of the transformer body 7, unscrewing an adjusting bolt 47 by a worker to release the limit of the telescopic cylinder 46, changing the extension length of the telescopic cylinder 46 in the adjusting sleeve 6 to realize the limit fixation of a fixing clamp 48 to the radiating pipe 36, and screwing the adjusting bolt 47 again to realize the limit fixation of the telescopic cylinder 46;
s2, the temperature sensor 20 monitors the internal temperature of the protective box body 2 in real time, when the highest temperature reaches a preset value, the water cooling assembly 5 starts to work, the circulating pump 35 operates to extract cooling water in the water storage tank 33, the cooling water flows through the radiating pipe 36 to take away heat absorbed by the heat conducting plate 37 and the auxiliary heat conducting block 41 so as to cool the transformer body 7, the used cooling water flows back into the water storage tank 33 through the radiating pipe 36, and the refrigerating pipe 34 works to cool the used cooling water so as to ensure the recycling of the cooling water;
s3, when the water cooling assembly 5 works for a specified time and the internal temperature of the protective box 2 is still at a preset temperature, the control module of the controller 13 controls the shielding assembly 3 to work, the air cylinder 23 operates to drive the shielding plate 24 to slide on the inner side of the sliding groove 18 and move upwards to the inner side of the through hole 19 so as to remove shielding of the heat dissipation hole 15, the heat dissipation fan 16 operates to discharge heat in the protective box 2 to the outside through the heat dissipation hole 15 after the shielding plate 24 is in place, and outside air enters the protective box 2 through the air inlet 11 after being filtered by the dust screen 12 so as to permeate and dissipate heat of the protective box 2 and the transformer body 7;
s4, the noise sensor 21 monitors the gas noise discharged through the heat radiation port 15, when the noise reaches a preset value, the noise sensor 21 transmits a signal to the controller 13, a receiving module in the controller 13 receives the signal and controls the noise elimination assembly 4 to work, the electric sliding block 26 works on the sliding rail seat 25 to move so as to drive the noise elimination cylinder 28 to adjust the vertical position, and the first electric telescopic rod 27 works after the noise elimination cylinder 28 and the heat radiation port 15 are positioned at the same horizontal position so as to enable the noise elimination cylinder 28 to move towards the direction close to the protective box body 2, and the outer end of the noise elimination cylinder 28 is butted with the limiting groove 17 to carry out noise elimination treatment on the discharged gas.
In step S1, the method further includes the steps of:
s11, the second electric telescopic rod 40 works to push the auxiliary heat conducting block 41 to slide inside the containing groove 38 and move outwards, and the auxiliary heat conducting block 41 and the heat conducting plate 37 are matched to realize omnibearing contact with the inner wall of the heat radiating plate 50;
s12, when the transformer body 7 shakes in the working process, the shock absorbing plate 45 primarily buffers the impact force and transmits the shaking impact force to the extrusion spring 44, the extrusion spring 44 buffers the impact force of the transformer body 7 in the horizontal direction through self elasticity, and the damper 43 prevents the extrusion spring 44 from shaking back and forth inside the jacking groove 42;
in step S4, the method further includes the steps of:
s41, the sound absorbing plate 31 and the glass wool plate 30 are used for silencing the discharged air flow, so that noise generated when the air flows is reduced, the air flows through the circulation port 32 and is discharged to the outside from the other end of the silencing barrel 28, and noise pollution caused by air discharge to the outside environment is reduced.
Working principle: when the device is used, firstly, the transformer body 7 is installed in the protective box body 2, the using positions of the radiating pipes 36 and the heat conducting plates 37 are adjusted according to different specifications of the transformer body 7, the heat conducting plates 37 are clamped on the inner sides of the openings 51, the rear shock absorbing plates 45 are propped against the inner sides of the heat radiating plates 50 on the outer sides of the transformer body 7, the worker unscrews the adjusting bolts 47 to release the limit of the telescopic cylinders 46, the extending length of the telescopic cylinders 46 in the adjusting sleeve 6 is changed to realize the limit fixation of the fixing clips 48 on the radiating pipes 36, the adjusting bolts 47 are screwed again to realize the limit fixation of the telescopic cylinders 46, the electric telescopic rods II 40 work to push the auxiliary heat conducting blocks 41 to slide on the inner sides of the containing grooves 38 and move outwards, the auxiliary heat conducting blocks 41 and the heat conducting plates 37 are matched to realize the omnibearing contact with the inner walls of the heat radiating plates 50, the shock absorbing plate 45 primarily buffers the impact force and transmits the shaking impact force to the extrusion spring 44 when the transformer body 7 shakes in the working process, the extrusion spring 44 buffers the impact force on the horizontal direction of the transformer body 7 through self elasticity, the damper 43 prevents the extrusion spring 44 from shaking reciprocally at the inner side of the supporting groove 42, the temperature sensor 20 monitors the internal temperature of the protective box body 2 in real time, the water cooling assembly 5 starts to work when the highest temperature reaches a preset value, the circulating pump 35 operates to extract cooling water in the water storage tank 33, the cooling water flows through the cooling pipe 36 to take away the heat absorbed by the heat conducting plate 37 and the auxiliary heat conducting block 41 to realize the cooling of the transformer body 7, the cooling water after use flows back to the water storage tank 33 through the cooling pipe 36, the cooling water after use is cooled by the refrigerating pipe 34 to ensure the recycling of the cooling water, when the water cooling assembly 5 works for a specified time, the control module of the controller 13 controls the shielding assembly 3 to work when the temperature inside the protective box 2 is still at a preset temperature, the air cylinder 23 operates to drive the shielding plate 24 to slide upwards on the inner side of the sliding groove 18 and move upwards to penetrate through the inner side of the penetrating opening 19 to release shielding of the radiating opening 15, the radiating fan 16 operates to discharge heat in the protective box 2 to the outside through the radiating opening 15 after the shielding plate 24 is in place, outside air is filtered by the dust screen 12 and enters the protective box 2 through the air inlet 11 to permeate and dissipate heat to the protective box 2 and the transformer body 7, the noise sensor 21 monitors gas noise discharged through the radiating opening 15, when the noise reaches a preset value, the noise sensor 21 transmits signals to the controller 13, the receiving module in the controller 13 receives the signals and controls the noise elimination assembly 4 to work, the electric sliding block 26 moves on the sliding rail seat 25 to drive the position adjustment of the noise elimination cylinder 28 in the vertical direction, the electric telescopic rod 27 works to enable the noise elimination cylinder 28 to move towards the direction close to the protective box 2 after the noise elimination cylinder 28 is in the same horizontal position as the radiating opening 15, the outer end of the noise elimination cylinder 28 and the cotton-shaped air outlet 17 are in the same horizontal position, the noise elimination cylinder 28 is in the same horizontal position as the radiating position, the cotton-shaped air outlet 31 is in the vertical direction, and the outside air is discharged from the glass outlet is reduced, and the outside air through the cotton outlet is in the air flow through the air outlet and the air outlet is reduced, and the noise is discharged from the air outlet through the cotton outlet and the air outlet and has the noise is reduced.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (3)
1. The utility model provides an elevator control transformer that protectiveness is good, includes base (1), protection box (2) and noise elimination subassembly (4), its characterized in that: the anti-noise device is characterized in that a shock absorption column (8) is arranged at the top of the base (1), a protection box body (2) is arranged at the top end of the shock absorption column (8), grooves (14) are symmetrically formed in the outer side of the protection box body (2), a noise elimination component (4) is arranged on the outer side of the protection box body (2), the noise elimination component (4) comprises a slide rail seat (25), an electric telescopic rod I (27) and a noise elimination cylinder (28), the slide rail seat (25) is relatively arranged on the inner side of the grooves (14), an electric sliding block (26) is embedded on the outer side of the slide rail seat (25), an electric telescopic rod I (27) is arranged on the outer side of the electric sliding block (26), the output end of the electric telescopic rod I (27) is connected with the noise elimination cylinder (28) through a connecting frame (29), and a connecting frame (29) is arranged on the outer side of the noise elimination cylinder (28).
The utility model discloses a noise sensor, including base (1), operation door (10) are installed through the hinge to the outside of base (1), operation door (10) are installed in the front of protection box (2), air intake (11) have been run through to the front of operation door (10), dust screen (12) are installed to the inboard of air intake (11), heat dissipation mouth (15) have been run through to the outside of protection box (2), heat dissipation fan (16) are installed to the inboard of heat dissipation mouth (15), spacing groove (17) have been seted up in the outside of protection box (2), and spacing groove (17) are located the outside of heat dissipation mouth (15), be provided with sliding groove (18) on the inner wall of heat dissipation mouth (15), through-hole (19) have been seted up at the top of protection box (2), install temperature sensor (20) on the inner wall of protection box (2), noise sensor (21) are installed in the outside of protection box (2), and noise sensor (21) are located the top of heat dissipation mouth (15), front of operation door (10) installs controller (13), noise sensor (13) are installed to temperature sensor (13) and are used for receiving temperature sensor (20) to the module, the inside control module is installed to the inside of receiving signal (13), the output end of the control module is connected with the shielding component (3), the silencing component (4), the water cooling component (5) and the input end of the electric telescopic rod II (40), a glass wool board (30) is arranged on the inner wall of the silencing cylinder (28), a sound absorbing board (31) is arranged on the opposite side of the glass wool board (30), and a circulation port (32) is arranged in the center position of the outer side of the sound absorbing board (31);
the protection box is characterized in that the shielding assembly (3) is arranged at the top of the protection box body (2), the shielding assembly (3) comprises a support (22), an air cylinder (23) is arranged at the top of the support (22), a shielding plate (24) is arranged at the output end of the air cylinder (23), the shielding plate (24) penetrates through the inner side of the through opening (19) and slides inside the sliding groove (18), an adjusting sleeve (6) is symmetrically arranged on the inner wall of the protection box body (2), an adjusting bolt (47) is arranged on the inner side of the adjusting sleeve (6), an adjusting bolt (47) is embedded on the outer side of the adjusting sleeve (6), the output end of the adjusting bolt (47) is matched with the outer side of the telescopic sleeve (46), a fixing clamp (48) is arranged at the outer end of the telescopic sleeve (46), the fixing clamp (48) is used for limiting the radiating pipe (36), and a wear-resisting pad (49) is arranged on the inner side of the fixing clamp (48);
the top of protection box (2) is provided with water-cooling subassembly (5), water-cooling subassembly (5) are including storage water tank (33) and cooling tube (36), cooling tube (34) are installed to the inboard of storage water tank (33), circulating pump (35) are installed at the top of storage water tank (33), cooling tube (36) are installed in the inboard of protection box (2), the output of cooling tube (36) is connected with the outside of storage water tank (33), and the input of cooling tube (36) is connected with the output of circulating pump (35), heat-conducting plate (37) are installed in the outside of cooling tube (36), storage tank (38) have been seted up to the top and the bottom symmetry of heat-conducting plate (37), set up mounting groove (39) on the inner wall of storage tank (38), electric telescopic handle second (40) are installed to the inboard of mounting groove (39), auxiliary block (41) are installed to the output of auxiliary block second (40), and auxiliary block (41) movable mounting is in the outside of storage tank (38), heat-conducting plate (37) are installed in the outside, heat-conducting plate (43) are installed in the top of the expansion tank (42), the outside of expansion tank (42) is installed to the top of expansion tank (42), the outer end of extrusion spring (44) is installed shock attenuation board (45), install transformer body (7) on the diapire of protection box (2), heating panel (50) are installed in the outside of transformer body (7), opening (51) have been seted up in the outside of heating panel (50), and heat conduction board (37) block is in the inboard of opening (51), shock attenuation board (45) contact with the inboard of heating panel (50).
2. The method for using an elevator control transformer with good protection according to claim 1, characterized in that the working steps of the elevator control transformer are as follows:
s1, firstly, installing a transformer body (7) in a protective box body (2), adjusting the use positions of a radiating pipe (36) and a heat conducting plate (37) according to different specifications of the transformer body (7), clamping the heat conducting plate (37) on the inner side of an opening (51), abutting a damping plate (45) against the inner side of a radiating plate (50) on the outer side of the transformer body (7), unscrewing an adjusting bolt (47) by a worker to release the limit of the telescopic cylinder (46), changing the extension length of the telescopic cylinder (46) in the adjusting sleeve (6) to realize the limit fixation of a fixing clamp (48) on the radiating pipe (36), and screwing the adjusting bolt (47) again to realize the limit stabilization of the telescopic cylinder (46);
s2, the temperature sensor (20) monitors the internal temperature of the protective box body (2) in real time, when the highest temperature reaches a preset value, the water cooling assembly (5) starts to work, the circulating pump (35) operates to extract cooling water in the water storage tank (33), the cooling water flows through the radiating pipe (36) to take away heat absorbed by the heat conducting plate (37) and the auxiliary heat conducting block (41) so as to cool the transformer body (7), the used cooling water flows back into the water storage tank (33) through the radiating pipe (36), and the refrigerating pipe (34) works to cool the used cooling water so as to ensure the recycling of the cooling water;
s3, when the water cooling assembly (5) works for a specified time, the control module of the controller (13) controls the shielding assembly (3) to work, the air cylinder (23) operates to drive the shielding plate (24) to slide upwards at the inner side of the sliding groove (18) to move upwards to remove shielding of the heat dissipation opening (15) through the inner side of the through hole (19), the heat dissipation fan (16) operates to discharge heat in the protective box (2) to the outside through the heat dissipation opening (15) after the shielding plate (24) is in place, and outside air enters the protective box (2) through the air inlet (11) to permeate and dissipate heat of the protective box (2) and the transformer body (7) after being filtered by the dust screen (12);
s4, a noise sensor (21) monitors gas noise exhausted through a heat radiation port (15), when the noise reaches a preset value, the noise sensor (21) transmits signals to a controller (13), a receiving module in the controller (13) receives the signals and controls a noise elimination assembly (4) to work, an electric sliding block (26) works on a sliding rail seat (25) to move so as to drive a noise elimination cylinder (28) to carry out position adjustment in the vertical direction, and after the noise elimination cylinder (28) and the heat radiation port (15) are positioned at the same horizontal position, an electric telescopic rod (27) works so that the noise elimination cylinder (28) moves towards a direction close to a protective box (2), and the outer end of the noise elimination cylinder (28) is butted with a limiting groove (17) to carry out noise elimination treatment on exhaust gas.
3. The method of using an elevator control transformer with good protection according to claim 2, further comprising the steps of, in said step S1:
s11, the electric telescopic rod II (40) works to push the auxiliary heat conducting block (41) to slide inside the accommodating groove (38) and move outwards, and the auxiliary heat conducting block (41) and the heat conducting plate (37) are matched to realize omnibearing contact with the inner wall of the heat radiating plate (50);
s12, when the transformer body (7) is in vibration in the working process, the shock absorbing plate (45) primarily buffers the impact force and transmits the vibration impact force to the extrusion spring (44), the extrusion spring (44) buffers the impact force of the transformer body (7) in the horizontal direction through self elasticity, and the damper (43) prevents the extrusion spring (44) from reciprocating and swinging inside the propping groove (42);
in the step S4, the method further includes the following steps:
s41, the sound absorbing plate (31) and the glass wool plate (30) are used for silencing the discharged air flow, so that noise generated when the air flows is reduced, the air flows through the circulation port (32) and is discharged to the outside from the other end of the silencing cylinder (28), and noise pollution caused by air discharge to the outside environment is reduced.
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| CN202311012582.0A CN116798743B (en) | 2023-08-11 | 2023-08-11 | Elevator control transformer with good protection performance and use method thereof |
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| CN213988519U (en) * | 2020-12-21 | 2021-08-17 | 天津华能杨柳青热电有限责任公司 | Cooling device for transformer |
| CN113628838A (en) * | 2021-08-11 | 2021-11-09 | 合肥齐兴电器有限责任公司 | Transformer protection component convenient to heat dissipation |
| CN214848071U (en) * | 2021-01-31 | 2021-11-23 | 江苏顺继电气有限公司 | Energy-saving environment-friendly three-dimensional dry-type angle distribution transformer |
| CN216793461U (en) * | 2022-01-05 | 2022-06-21 | 曲阜市玖强工贸有限公司 | Mute type small transformer for community |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN213988519U (en) * | 2020-12-21 | 2021-08-17 | 天津华能杨柳青热电有限责任公司 | Cooling device for transformer |
| CN214848071U (en) * | 2021-01-31 | 2021-11-23 | 江苏顺继电气有限公司 | Energy-saving environment-friendly three-dimensional dry-type angle distribution transformer |
| CN113628838A (en) * | 2021-08-11 | 2021-11-09 | 合肥齐兴电器有限责任公司 | Transformer protection component convenient to heat dissipation |
| CN216793461U (en) * | 2022-01-05 | 2022-06-21 | 曲阜市玖强工贸有限公司 | Mute type small transformer for community |
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