Anti-magnetic interference device for electric power metering box

Abstract

The invention relates to the field of electric power metering boxes, in particular to an anti-magnetic interference device for an electric power metering box, which comprises an anti-magnetic interference box body, a partition plate is vertically and fixedly arranged in the box body, at least one liftable displacement frame is arranged on the partition plate, and at least two assembly plates capable of moving back and forth are arranged on the displacement frame. A power mechanism capable of driving the displacement frame and the assembly plate is arranged in the box body, and an emergency wire breaking mechanism capable of cutting off the wire harness is further arranged in the box body. A multi-layer protection structure can be formed, interference of an external magnetic field on the electric power metering box is effectively shielded, stable operation of internal electronic equipment in a strong magnetic field environment is ensured, accuracy of metering data is improved, layout of the internal equipment can be adjusted according to actual requirements, wire harnesses can be rapidly cut off in an emergency, and fault expansion is prevented. The internal circuit is protected from being damaged, the safety performance of the electric power metering box is improved, and potential safety risks are reduced.

Description

Technical Field

[0001] The invention relates to the field of electric power meter boxes, in particular to an anti-magnetic interference device for electric power meter boxes. Background Art

[0002] In the power system, the power meter box is a key metering device, and its accuracy and stability are crucial to the normal operation of the power system. However, in practical applications, the power meter box is often disturbed by the external magnetic field, resulting in deviations in the metering data, affecting the metering accuracy and reliability of the power system. In addition, with the continuous upgrading of power equipment, higher requirements are also placed on the internal layout and space utilization of the power meter box. Traditional power meter boxes often use a single shielding material for anti-magnetic interference, and their protection effect is limited, and they cannot completely shield the interference of the external magnetic field. At the same time, the layout of its internal equipment is fixed and cannot be adjusted according to actual needs, resulting in low space utilization and poor maintainability of the equipment. In addition, in an emergency, traditional power meter boxes often lack the function of quickly cutting off the wiring harness, and cannot effectively prevent the expansion of faults and protect the internal circuits from damage.

[0003] The Chinese patent with application number 201620842976.8 discloses a magnetic interference-proof electric power metering box, including a metering box, a box door, a switch door, a meter-checking window, a wiring hole, a chain angle, a handle, a magnetic-proof rubber sleeve, a lock hole, a main gate, a meter, a main power switch, a shunt plate, a wiring head, an electric wire, and an air switch. A box door is provided on the front side of the metering box, a switch door is provided at the lower right corner of the box door, a wiring hole is provided on the right side wall of the metering box, the switch door is connected to the box door through a chain angle, the box door is connected to the metering box through a chain angle, a handle and a lock hole are provided on the right side of the switch door, a handle is provided on the right side of the box door, and a magnetic-proof rubber sleeve is provided on the metering box, the box door, and the switch door. The utility model protects the entire metering box through the magnetic-proof rubber barrel on the external machine box, which can effectively achieve a good anti-interference effect against magnetic interference, and a wiring hole is provided on the right side of the metering box, which can be connected to the outside to achieve wired connection and increase metering accuracy.

[0004] A Chinese patent with application number 202322769486.2 discloses an intelligent electricity metering box, including a box body, an outer box door, an inner box door, a password lock, a magnetic lock, a first infrared device, a controller, a drying tank, a second infrared device, a timer, a camera, an alarm device, and a user end; the timer is provided with a time value for regularly replacing the desiccant. When the timing time reaches the replacement time, the controller can send information to the user end to remind the user to replace the desiccant. Regular replacement of the desiccant can enhance the dehumidification effect and prevent moisture in the box from affecting the operation of the equipment; the box body is provided with an outer box door and an inner box door. When an illegal person illegally opens the outer box door, the controller will control the alarm device to alarm to stop the illegal person from continuing to damage the box body, and at the same time send information to the user end. The user end can view the environment around the box body and see the perpetrator through the camera. After the outer box door is damaged, the device can alarm and notify the user to avoid causing greater losses.

[0005] However, there are still the following problems in practical applications, specifically:

[0006] 1. Single-layer shielding material cannot effectively deal with multi-directional, high-intensity magnetic field interference.

[0007] 2. The internal layout is fixed and relatively compact, which is not conducive to flexible adjustment of equipment position.

[0008] 3. Lack of emergency disconnection mechanism, unable to quickly protect the circuit in an emergency.

[0009] Therefore, how to overcome the above-mentioned technical problems and defects becomes a key issue that needs to be solved. Summary of the invention

[0010] The purpose of the invention is to overcome the defects described in the background technology, thereby realizing an anti-magnetic interference device for an electric power meter box, the separator can form a multi-layer protection structure, effectively shield the interference of the external magnetic field on the electric power meter box, ensure the stable operation of the internal electronic equipment in a strong magnetic field environment, improve the accuracy of the metering data, allow the internal equipment to be raised and lowered and moved forward and backward according to actual needs, easily adjust the layout of the internal equipment, improve the space utilization and maintainability of the equipment, facilitate rapid replacement and upgrading, and can quickly cut off the wiring harness in an emergency to prevent the fault from expanding, protect the internal circuit from damage, improve the safety performance of the electric power meter box and reduce potential safety risks.

[0011] To achieve the above-mentioned invention object, the technical solution of the present invention is: an anti-magnetic interference device for an electric power meter box, comprising a box body for anti-magnetic interference, wherein a partition is vertically fixedly arranged inside the box body. At least one lifting and lowering displacement frame is arranged on the partition body, and at least two assembly plates that can move forward and backward are arranged on the displacement frame. A power mechanism that can drive the displacement frame and the assembly plate is arranged inside the box body. An emergency disconnection mechanism that can cut off the wiring harness is also arranged inside the box body.

[0012] In the above-mentioned anti-magnetic interference device of the electric power meter box, the box body includes side panels, a top cover, a bottom plate and a box door. The top cover is lifted and lowered at the top end of the side panel, the bottom plate is fixedly set at the bottom end of the side panel, and the box door is provided in multiple numbers and is respectively hinged at the front end of the side panel.

[0013] The side plate comprises an outer layer, a middle layer and an inner layer which are fixedly arranged in sequence, the outer layer is made of a high magnetic permeability alloy material, the middle layer is made of amorphous metal strip winding, and the inner layer is made of a high electrical conductivity material.

[0014] A solar panel is fixedly arranged on the top of the top cover to provide power for the electrical appliances inside.

[0015] In the above-mentioned anti-magnetic interference device for the electric power meter box, shielding plates are fixedly arranged on the side plates on both sides of the box body, and a control cavity is formed between the shielding plates and the side plates. A first electric push rod is vertically fixedly arranged at the bottom end of the control cavity, and a push rod is horizontally fixedly arranged at the top end of the first electric push rod. Limiting rods are vertically fixedly arranged on the shielding plates on both sides of the first electric push rod, and the top end of the limiting rod can abut against the bottom end of the push rod.

[0016] Both ends of the push rod are vertically fixed with push rods, and the side parts of the push rod between the push rod and the shielding plate are rotatably provided with a plurality of rollers, and the rollers are in contact with the inner wall of the shielding plate.

[0017] A top plate is fixedly arranged at the top of the interior of the box body, and both ends of the top plate are fixedly connected to the tops of the corresponding shielding plates.

[0018] In the above-mentioned anti-magnetic interference device for the electric power meter box, a lift plate that can be raised and lowered is arranged above the top plate, and both ends of the lift plate are fixedly arranged on the top ends of the corresponding top rods.

[0019] Both ends of the lifting plate are vertically fixed with ventilation side plates, which connect the top of the top plate with the outside world, and a limit plate is vertically fixed at the middle position of the top of the top plate. A liftable guide plate is arranged in the middle of the limit plate, and the top of the guide plate is fixed to the bottom of the top cover. Baffles are vertically fixed at the top of the top plate on both sides of the limit plate, and ventilation areas are opened on the top plate between the limit plate and the baffle.

[0020] In the above-mentioned anti-magnetic interference device for the electric power meter box, ventilation cavities are provided on both sides of the interior of the bottom plate, and ventilation holes communicating with the outside are provided at the ends of the ventilation cavities.

[0021] The bottom surface of the ventilation cavity is a slope that gradually slopes downward from the middle to the outside. A filter plate is fixedly arranged inside the ventilation cavity. At least two ventilation fans are fixedly arranged on the top of the bottom plate. The ventilation fans connect the interior of the box with the ventilation cavity.

[0022] Rain shields capable of shielding the ventilation side panels are fixedly arranged on both sides of the top cover, and the rain shields are also arranged on the bottom plate outside the ventilation opening.

[0023] In the above-mentioned anti-magnetic interference device for the electric power meter box, the displacement frame is an L-shaped structure, and a plurality of wire grooves are provided at the upper and lower ends of the horizontal end of the displacement frame.

[0024] The power unit includes a first lead screw vertically rotatably arranged at the rear side of the partition, the first lead screw is threadedly connected to the displacement frame, and a first bidirectional motor driving the first lead screw is fixedly arranged at the top of the partition. First guide rods are vertically fixedly arranged on both sides of the box body, and the displacement frame slides on the first guide rods.

[0025] A plurality of second guide rods are horizontally provided on the displacement frame, and the assembly plate is slidably connected to the second guide rods.

[0026] In the above-mentioned anti-magnetic interference device for the electric power meter box, a second lead screw is vertically rotatably arranged on the displacement frame, and a second bidirectional motor driving the second lead screw is fixedly arranged at the bottom end of the displacement frame. A connecting block is threadedly connected to the second lead screw, and a sliding groove is vertically opened on the side of the displacement frame, and one end of the connecting block can slide in the sliding groove. A swing rod is hingedly arranged at the other end of the connecting block, and the other end of the swing rod is hingedly arranged at the rear bottom of the assembly plate.

[0027] In the above-mentioned anti-magnetic interference device for the electric power meter box, the emergency disconnection mechanism comprises a fixed plate detachably arranged on the side of the assembly plate, and the two ends of the fixed plate are detachably arranged on the corresponding second guide rod. A movable groove is provided on the outer side of the fixed plate, and a plurality of wire management blocks are slidably arranged in the movable groove, and a cutting groove is horizontally provided on the outer side of the wire management block.

[0028] A pressing plate is fixedly arranged on the outer side of the fixed plate, a detachable moving plate is arranged between the pressing plate and the fixed plate, and both ends of the moving plate are detachably arranged on the corresponding second guide rods. The side of the moving plate can abut against the side of the cable management block, and the cutting groove is also horizontally opened in the middle position of the moving plate.

[0029] A movable cutting plate is arranged between the movable plate and the pressing plate, and a blade which can be inserted into the cutting groove is horizontally fixedly arranged on the side of the cutting plate. A third guide rod is horizontally fixedly arranged at both ends of the other side of the cutting plate, and the third guide rod passes through the side of the pressing plate. A second electric push rod is horizontally fixedly arranged in the middle position of the side of the pressing plate, and the telescopic part of the second electric push rod passes through the side of the pressing plate and the cutting plate and is fixedly arranged.

[0030] In the above-mentioned anti-magnetic interference device for the electric power meter box, smoke alarms and temperature sensors are fixedly arranged on both sides of the top of the partition.

[0031] Compared with the prior art, the anti-magnetic interference device for the electric power meter box of the present invention has at least the following beneficial effects:

[0032] 1. The anti-magnetic interference device for the electric power meter box of the present invention forms a multi-layer protection structure by adopting an outer layer made of a high magnetic permeability alloy material, a middle layer wound with an amorphous metal strip, and an inner layer made of a high conductive material, which effectively shields the interference of the external magnetic field on the electric power meter box, ensures the stable operation of the internal electronic equipment in a strong magnetic field environment, improves the accuracy of the metering data, and provides additional clean energy support through solar panels, reduces dependence on external power supplies, and supplies power to low-power modules such as intelligent control systems, reflecting the concept of green environmental protection.

[0033] 2. The anti-magnetic interference device of the electric meter box of the present invention, the design of the displacement frame and the assembly plate allow lifting and moving forward and backward according to actual needs. Through the drive of the power mechanism, the layout of the internal equipment can be easily adjusted, which improves the space utilization and the maintainability of the equipment and facilitates rapid replacement and upgrading.

[0034] 3. The anti-magnetic interference device of the electric power meter box of the present invention forms an effective air flow path by combining the ventilation cavities on both sides of the bottom plate with the ventilation fans, thereby ensuring the air circulation inside and outside the box. The lifting plates and ventilation side plates arranged above the top plate further enhance the effect of natural convection, effectively reduce the internal temperature, and extend the service life of the equipment. At the same time, the setting of the filter plate can also prevent dust and other impurities from entering the interior of the box.

[0035] 4. The anti-magnetic interference device, smoke alarm and temperature sensor of the power meter box of the present invention can monitor the environmental conditions inside the box in real time. Once an abnormal situation is found, an alarm can be issued in time, thereby improving the reliability and safety of the power meter box. At the same time, the emergency disconnection mechanism can quickly cut off the wiring harness in an emergency, prevent the fault from expanding, protect the internal circuit from damage, improve the safety performance of the power meter box and reduce potential safety risks. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1It is a schematic diagram of the overall structure of the present invention;

[0037] Figure 2 It is a schematic diagram of the side plate structure of the present invention;

[0038] Figure 3 is a schematic diagram of the position of the control cavity of the present invention;

[0039] Figure 4 The present invention Figure 3 A magnified image of area A;

[0040] Figure 5 It is a schematic diagram of the internal structure of the present invention;

[0041] Figure 6 It is a schematic diagram of the cooperation between the displacement frame and the assembly plate of the present invention;

[0042] Figure 7 is a schematic diagram of the position of a second bidirectional motor of the present invention;

[0043] Figure 8 It is a structural schematic diagram of the emergency disconnection mechanism of the present invention.

[0044] In the figure: 1, box body; 101, side panel; 1011, outer layer; 1012, middle layer; 1013, inner layer;

[0045] 102, top cover; 103, bottom plate; 104, box door;

[0046] 2. Partition plate; 3. Displacement frame; 4. Assembly plate;

[0047] 5. Power mechanism; 51. First lead screw; 52. First bidirectional motor; 53. First guide rod; 54. Second guide rod; 55. Second lead screw; 56. Second bidirectional motor; 57. Connecting block; 58. Slide; 59. Swing rod;

[0048] 6. Emergency disconnection mechanism; 61. Fixed plate; 62. Moving groove; 63. Wire management block; 64. Cutting groove; 65. Pressing plate; 66. Moving plate; 67. Cutting plate; 68. Blade; 69. Third guide rod; 70. Second electric push rod;

[0049] 7. Solar panel; 8. Shielding plate; 9. Control chamber; 10. First electric push rod; 11. Push rod; 12. Limit rod; 13. Push rod; 14. Roller; 15. Top plate; 16. Lifting plate; 17. Ventilation side plate; 18. Limit plate; 19. Guide plate; 20. Baffle; 21. Ventilation area; 22. Ventilation chamber; 23. Ventilation port; 24. Inclined surface; 25. Filter plate; 26. Ventilation fan; 27. Rain shield; 28. Wire trough; 29. ​​Smoke alarm; 30. Temperature sensor. DETAILED DESCRIPTION

[0050] The anti-magnetic interference device for the electric power meter box of the present invention is described in more detail below with reference to the accompanying drawings and through specific implementation methods.

[0051] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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 a limitation on the present invention.

[0052] See also Figure 1-Figure 8 , an anti-magnetic interference device for an electric meter box in this embodiment can form a multi-layer protection structure, effectively shield the interference of the external magnetic field on the electric meter box, ensure the stable operation of the internal electronic equipment in a strong magnetic field environment, improve the accuracy of the metering data, allow the internal equipment to be raised and lowered and moved forward and backward according to actual needs, easily adjust the layout of the internal equipment, improve the space utilization and maintainability of the equipment, facilitate rapid replacement and upgrading, and can quickly cut off the wiring harness in an emergency to prevent the fault from expanding, protect the internal circuit from damage, improve the safety performance of the electric meter box and reduce potential safety risks.

[0053] In this embodiment, it mainly includes a box body 1 for preventing magnetic interference, and the box body 1 includes a side plate 101, a top cover 102, a bottom plate 103 and a box door 104. The top cover 102 is set at the top of the side plate 101, the bottom plate 103 is fixed at the bottom of the side plate 101, and the box door 104 is provided with multiple and respectively hinged at the front end of the side plate 101. The side plate 101 includes an outer layer 1011, a middle layer 1012 and an inner layer 1013 fixedly arranged in sequence. The outer layer 1011 is made of a high magnetic permeability alloy material, such as Permalloy, as the main shielding material, forming the first line of defense, absorbing most of the external magnetic field. The middle layer 1012 is made of amorphous metal strip winding, has excellent soft magnetic properties, and further enhances the shielding ability of low-frequency magnetic fields. The inner layer 1013 is made of high conductivity materials, such as copper or aluminum, which reflects high-frequency electromagnetic waves and reduces the impact of high-frequency noise. A solar panel 7 is fixedly mounted on the top of the top cover 102 to provide power for the electrical appliances inside.

[0054] In order to achieve heat dissipation of the box 1, see Figure 2-Figure 4In this embodiment, baffle plates 8 are fixedly provided on the side plates 101 on both sides of the box body 1, and a control chamber 9 is formed between the baffle plates 8 and the side plates 101. A first electric push rod 10 is vertically fixedly provided at the bottom end of the control chamber 9, and a push rod 11 is horizontally fixedly provided at the top end of the first electric push rod 10. The first electric push rod 10 is controlled to work and drive the push rod 11 to rise and fall in the control chamber 9. Limit rods 12 are vertically fixedly provided on the baffle plates 8 on both sides of the first electric push rod 10, and the top end of the limit rod 12 can abut against the bottom end of the push rod 11. When heat dissipation is not required, the lowest position of the push rod 11 is limited by the limit rod 12. A push rod 13 is vertically fixedly provided at both ends of the push rod 11, and a plurality of rollers 14 are rotatably provided on the side of the push rod 13 between the push rod 13 and the baffle plate 8, and the rollers 14 abut against the inner wall of the baffle plate 8. When the push rod 11 is raised or lowered, the push rod 13 is driven to be raised or lowered, and the friction resistance is reduced by the roller 14 .

[0055] A top plate 15 is fixedly provided at the top of the inner part of the box body 1, and both ends of the top plate 15 are fixedly connected to the top of the corresponding shielding plate 8. A lifting plate 16 that can be raised and lowered is provided above the top plate 15, and both ends of the lifting plate 16 are fixedly provided at the top of the corresponding top rod 13. When the push rod 11 is raised and lowered, the top rod 13 is driven to be raised and lowered, thereby driving the lifting plate 16 to be raised and lowered. Ventilation side plates 17 are vertically fixedly provided at both ends of the lifting plate 16, and the ventilation side plates 17 connect the top of the top plate 15 with the outside world. When the lifting plate 16 is raised, the inside of the box body 1 is connected with the outside world through the ventilation side plates 17, so that the temperature inside the box body 1 is dissipated outwards for cooling. A limit plate 18 is vertically fixedly provided at the middle position of the top of the top plate 15. A guide plate 19 that can be raised and lowered is provided in the middle of the limit plate 18, and the top end of the guide plate 19 is fixedly provided with the bottom end of the top cover 102. The guide plate 19 and the limit plate 18 are used to assist in guiding the lifting of the top cover 102. Baffles 20 are vertically fixed on the top of the top plate 15 on both sides of the limit plate 18. The baffles 20 block dust and debris entering the top of the top plate 15 from the ventilation side plate 17 to prevent them from entering the equipment inside the box 1. Ventilation areas 21 are provided on the top plate 15 between the limit plate 18 and the baffle 20. The temperature inside the box 1 is dissipated outwards through the ventilation areas 21.

[0056] The bottom plate 103 has ventilation cavities 22 on both sides of the interior, and ventilation openings 23 connected to the outside are provided at the ends of the ventilation cavities 22. The bottom surface of the ventilation cavity 22 is a slope 24 that gradually slopes downward from the middle to the outside, and a filter plate 25 is fixedly arranged inside the ventilation cavity 22. At least two ventilation fans 26 are fixedly arranged on the top of the bottom plate 103, and the ventilation fans 26 connect the interior of the box body 1 with the ventilation cavity 22. The ventilation fans 26 are controlled to work, and the outside air enters the interior of the box body 1 from the ventilation openings 23 and the ventilation cavity 22. In this process, dust is blocked by the slope 24. Rain shields 27 that can block the ventilation side panels 17 are fixedly arranged on both sides of the top cover 102, and the rain shields 27 are also arranged on the bottom plate 103 outside the ventilation openings 23. The rain shields 27 are used to block rainwater from the outside to prevent the inside of the box body 1 from being too humid.

[0057] In order to adjust the layout of the internal devices, in this embodiment, see Figure 5-Figure 7 , a partition 2 is vertically fixed inside the box 1. Smoke alarms 29 and temperature sensors 30 are fixed on both sides of the top of the partition 2. The situation inside the box 1 is detected in real time by the smoke alarm 29 and the temperature sensor 30. At least one liftable displacement rack 3 is arranged on the partition 2, and the displacement rack 3 is an L-shaped structure. A plurality of wire grooves 28 are opened at the upper and lower ends of the horizontal end of the displacement rack 3. The wire harness can be arranged through the wire grooves 28. At least two assembly plates 4 that can move forward and backward are arranged on the displacement rack 3.

[0058] The box body 1 is provided with a power mechanism 5 capable of driving the displacement frame 3 and the assembly plate 4. The power unit includes a first lead screw 51 vertically rotatably arranged at the rear side of the partition 2, the first lead screw 51 being threadedly connected to the displacement frame 3, and a first bidirectional motor 52 driving the first lead screw 51 is fixedly arranged at the top of the partition 2. First guide rods 53 are vertically fixedly arranged on both sides of the box body 1, and the displacement frame 3 slides on the first guide rods 53. The first bidirectional motor 52 is controlled to work, driving the first lead screw 51 to rotate, so that the displacement frame 3 is lifted and lowered along the first guide rods 53.

[0059] A plurality of second guide rods 54 are horizontally provided on the displacement frame 3, and the assembly plate 4 is slidably connected to the second guide rods 54. A second lead screw 55 is vertically rotatably provided on the displacement frame 3, and a second bidirectional motor 56 driving the second lead screw 55 is fixedly provided at the bottom end of the displacement frame 3. A connecting block 57 is threadedly connected to the second lead screw 55, and a slide groove 58 is vertically provided on the side of the displacement frame 3, and one end of the connecting block 57 can slide in the slide groove 58. A swing rod 59 is hingedly provided at the other end of the connecting block 57, and the other end of the swing rod 59 is hingedly provided at the rear bottom of the assembly plate 4. The second bidirectional motor 56 is controlled to work and drive the second lead screw 55 to rotate, so that the connecting block 57 is lifted and lowered along the slide groove 58. In this process, the connecting block 57 drives the assembly plate 4 to move forward and backward along the second guide rod 54 through the swing rod 59. Thus, the layout of the equipment inside the box 1 is adjusted, the space utilization rate and the maintainability of the equipment are improved, and it is convenient for rapid replacement and upgrading.

[0060] For filtering and crushing large fermentations, see Figure 8 , the box 1 is also provided with an emergency disconnection mechanism 6 for cutting the wire harness. The emergency disconnection mechanism 6 includes a fixed plate 61 detachably provided on the side of the assembly plate 4, and the two ends of the fixed plate 61 are detachably provided on the corresponding second guide rod 54. A movable groove 62 is provided on the outer side of the fixed plate 61, and a plurality of wire management blocks 63 are slidably provided in the movable groove 62. The position of the wire management block 63 can be moved according to actual conditions, and the wire harness can be placed inside the wire management block 63. A cutting groove 64 is horizontally provided on the outer side of the wire management block 63. A pressing plate 65 is fixedly provided on the outer side of the fixed plate 61, and a detachable movable plate 66 is provided between the pressing plate 65 and the fixed plate 61, and the two ends of the movable plate 66 are detachably provided on the corresponding second guide rod 54. The side of the movable plate 66 can abut against the side of the wire management block 63, and the wire harness is limited by the cooperation between the movable plate 66 and the wire management block 63. The cutting groove 64 is also horizontally provided in the middle position of the movable plate 66.

[0061] A movable cutting plate 67 is provided between the movable plate 66 and the pressing plate 65, and a blade 68 that can be inserted into the cutting groove 64 is horizontally fixedly provided on the side of the cutting plate 67. Third guide rods 69 are horizontally fixedly provided at both ends of the other side of the cutting plate 67, and the third guide rod 69 passes through the side of the pressing plate 65. A second electric push rod 70 is horizontally fixedly provided in the middle position of the side of the pressing plate 65, and the telescopic part of the second electric push rod 70 passes through the pressing plate 65 and the side of the cutting plate 67 and is fixed. When an abnormality is detected, the second electric push rod 70 is controlled to work, and the cutting plate 67 is moved along the third guide rod 69, so that the blade 68 is inserted into the inside of the cutting groove 64, so that the wire harness is cut by the blade 68, so as to prevent the fault from expanding, protect the internal circuit from damage, improve the safety performance of the power meter box and reduce potential safety risks.

[0062] The method of using the anti-magnetic interference device of the electric power meter box of the present invention is as follows: First, control the first bidirectional motor 52 to work and drive the first lead screw 51 to rotate, so that the displacement frame 3 is lifted and lowered along the first guide rod 53. Control the second bidirectional motor 56 to work and drive the second lead screw 55 to rotate, so that the connection block 57 is lifted and lowered along the slide groove 58. During this process, the connection block 57 drives the assembly plate 4 to move forward and backward along the second guide rod 54 through the rocker 59. After that, install the device on the assembly plate 4, and move the position of the wire management block 63 according to the actual situation, place the wire harness inside the wire management block 63, and limit the wire harness by cooperating with the wire management block 63 through the moving plate 66. Arrange through the wire management groove 28.

[0063] The temperature sensor 30 is used to detect the situation inside the box 1 in real time. When it is detected that the temperature inside the box 1 is high, the first electric push rod 10 is controlled to work and drive the push rod 11 to rise in the control chamber 9. The top rod 13 is raised, and the friction resistance is reduced by the roller 14. At this time, the lifting plate 16 is raised, and the guide plate 19 and the limit plate 18 are used to assist in guiding the lifting of the top cover 102. The ventilation fan 26 is controlled to work, and the outside air enters the inside of the box 1 from the vent 23 and the ventilation cavity 22. At this time, the temperature inside the box 1 is dissipated outward through the ventilation area 21 and the ventilation side plate 17. In this process, the baffle 20 is used to block the dust and debris entering the top plate 15 from the ventilation side plate 17 to prevent it from entering the equipment inside the box 1. At the same time, the dust is blocked by the inclined surface 24, and the rain is blocked to the outside by the rain shield 27 to prevent the inside of the box 1 from being too humid.

[0064] When the temperature sensor 30 and the smoke alarm 29 detect an abnormality at the same time, the second electric push rod 70 is controlled to work, and the cutting plate 67 is moved along the third guide rod 69, so that the blade 68 is inserted into the cutting groove 64, so that the wire harness is cut by the blade 68 to prevent the fault from expanding, protect the internal circuit from damage, improve the safety performance of the power meter box and reduce potential safety risks.

[0065] Unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meaning understood by a person of ordinary skill in the field to which the invention belongs. The use of "one" or "an" and other similar words in the specification and claims of this application does not necessarily indicate a quantitative limitation. "Include" or "comprises" and other similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and other similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect.

[0066] The exemplary implementation modes of the present invention are described in detail above with reference to the preferred embodiments. However, it can be understood by those skilled in the art that, without departing from the concept of the present invention, various modifications and variations can be made to the above-mentioned specific embodiments, and various combinations of the technical features and structures proposed in the present invention can be made without exceeding the protection scope of the present invention.

Claims

1. An anti-magnetic interference device for an electric power meter box, characterized in that: The invention comprises a magnetic interference-proof box (1), a partition (2) being vertically fixedly arranged inside the box (1), at least one liftable displacement frame (3) being arranged on the partition (2), at least two assembly plates (4) being movable forwards and backwards being arranged on the displacement frame (3), a power mechanism (5) being arranged inside the box (1) for driving the displacement frame (3) and the assembly plate (4), and an emergency disconnection mechanism (6) being arranged inside the box (1) for cutting off the wiring harness.

2. The anti-magnetic interference device for an electric power meter box according to claim 1, characterized in that: The box body (1) comprises a side panel (101), a top cover (102), a bottom panel (103) and a box door (104); the top cover (102) is arranged at the top end of the side panel (101) in a lifting manner; the bottom panel (103) is fixedly arranged at the bottom end of the side panel (101); and a plurality of the box doors (104) are respectively hingedly arranged at the front end of the side panel (101); The side plate (101) comprises an outer layer (1011), a middle layer (1012) and an inner layer (1013) which are fixedly arranged in sequence, the outer layer (1011) is made of a high magnetic permeability alloy material, the middle layer (1012) is made of amorphous metal strip winding, and the inner layer (1013) is made of a high electrical conductivity material; A solar panel (7) is fixedly arranged on the top end of the top cover (102).

3. The anti-magnetic interference device for an electric power meter box according to claim 2, characterized in that: Shielding plates (8) are fixedly arranged on the side plates (101) on both sides of the box body (1), a control chamber (9) is formed between the shielding plates (8) and the side plates (101), a first electric push rod (10) is vertically fixedly arranged at the bottom end of the control chamber (9), a push rod (11) is horizontally fixedly arranged at the top end of the first electric push rod (10), and limiting rods (12) are vertically fixedly arranged on the shielding plates (8) on both sides of the first electric push rod (10), and the top end of the limiting rod (12) can abut against the bottom end of the push rod (11); Both ends of the push rod (11) are vertically fixed with push rods (13), and the side of the push rod (13) between the push rod (13) and the shielding plate (8) is rotatably provided with a plurality of rollers (14), and the rollers (14) are in contact with the inner wall of the shielding plate (8); A top plate (15) is fixedly arranged at the top end of the interior of the box body (1), and both ends of the top plate (15) are fixedly connected to the top ends of corresponding shielding plates (8).

4. The anti-magnetic interference device for an electric power meter box according to claim 3, characterized in that: A lift plate (16) that can be raised and lowered is arranged above the top plate (15), and both ends of the lift plate (16) are fixedly arranged on the top ends of the corresponding top rods (13); Both ends of the lifting plate (16) are vertically fixed with ventilation side plates (17), and the ventilation side plates (17) connect the top of the top plate (15) with the outside world. A limiting plate (18) is vertically fixed in the middle position of the top end of the top plate (15), and a liftable guide plate (19) is arranged in the middle of the limiting plate (18). The top end of the guide plate (19) is fixed to the bottom end of the top cover (102), and baffles (20) are vertically fixed on the top end of the top plate (15) on both sides of the limiting plate (18), and a ventilation area (21) is opened on the top plate (15) between the limiting plate (18) and the baffle (20).

5. The anti-magnetic interference device for an electric power meter box according to claim 4, characterized in that: Both sides of the bottom plate (103) are provided with ventilation cavities (22), and the ends of the ventilation cavities (22) are provided with ventilation holes (23) connected to the outside; The bottom surface of the ventilation cavity (22) is a slope (24) that gradually slopes downward from the middle to the outside, a filter plate (25) is fixedly arranged inside the ventilation cavity (22), and at least two ventilation fans (26) are fixedly arranged on the top of the bottom plate (103), and the ventilation fans (26) connect the interior of the box body (1) with the ventilation cavity (22); Rain shields (27) capable of shielding the ventilation side panels (17) are fixedly arranged on both sides of the top cover (102), and the rain shields (27) are also arranged on the bottom plate (103) outside the ventilation opening (23).

6. The anti-magnetic interference device for an electric power meter box according to claim 1, characterized in that: The displacement frame (3) is an L-shaped structure, and a plurality of wire grooves (28) are provided at the upper and lower ends of the horizontal end of the displacement frame (3); The power unit comprises a first lead screw (51) vertically rotatably arranged at the rear side of the partition (2), the first lead screw (51) being threadedly connected to the displacement frame (3), a first bidirectional motor (52) for driving the first lead screw (51) being fixedly arranged at the top end of the partition (2), first guide rods (53) being vertically fixedly arranged on both sides of the interior of the box body (1), and the displacement frame (3) sliding on the first guide rods (53); A plurality of second guide rods (54) are horizontally provided on the displacement frame (3), and the assembly plate (4) is slidably connected to the second guide rods (54).

7. The anti-magnetic interference device for an electric power meter box according to claim 6, characterized in that: A second lead screw (55) is vertically rotatably arranged on the displacement frame (3), a second bidirectional motor (56) for driving the second lead screw (55) is fixedly arranged at the bottom end of the displacement frame (3), a connecting block (57) is threadedly connected to the second lead screw (55), a sliding groove (58) is vertically opened on the side of the displacement frame (3), one end of the connecting block (57) can slide in the sliding groove (58), and a swing rod (59) is hingedly arranged at the other end of the connecting block (57), and the other end of the swing rod (59) is hingedly arranged to the rear bottom of the assembly plate (4).

8. The anti-magnetic interference device for an electric power meter box according to claim 7, characterized in that: The emergency disconnection mechanism (6) comprises a fixed plate (61) detachably arranged on the side of the assembly plate (4), the two ends of the fixed plate (61) are detachably arranged on the corresponding second guide rod (54), a movable groove (62) is provided on the outer side of the fixed plate (61), a plurality of wire management blocks (63) are slidably arranged in the movable groove (62), and a cutting groove (64) is horizontally provided on the outer side of the wire management block (63); A pressing plate (65) is fixedly arranged on the outer side of the fixed plate (61), a detachable movable plate (66) is arranged between the pressing plate (65) and the fixed plate (61), two ends of the movable plate (66) are detachably arranged on the corresponding second guide rods (54), the side of the movable plate (66) can abut against the side of the cable management block (63), and the cutting groove (64) is also horizontally opened in the middle position of the movable plate (66); A movable cutting plate (67) is arranged between the movable plate (66) and the pressing plate (65), and a blade (68) which can be inserted into the cutting groove (64) is horizontally fixedly arranged on the side of the cutting plate (67), and third guide rods (69) are horizontally fixedly arranged at both ends of the other side of the cutting plate (67), and the third guide rod (69) passes through the side of the pressing plate (65). A second electric push rod (70) is horizontally fixedly arranged in the middle position of the side of the pressing plate (65), and the telescopic part of the second electric push rod (70) passes through the side of the pressing plate (65) and the cutting plate (67) and is fixedly arranged.

9. The anti-magnetic interference device for an electric power meter box according to claim 1, characterized in that: A smoke alarm (29) and a temperature sensor (30) are fixedly arranged on both sides of the top of the partition (2).

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