Electromagnetic shielding electrical cabinet with eddy current prevention function

Abstract

The invention relates to the technical field of electrical cabinets, and discloses an electromagnetic shielding electrical cabinet with an eddy current prevention function, which comprises a cabinet body, a cabinet door is hinged to the front side surface of the cabinet body, a mounting plate is fixedly connected to the rear side surface of the inner wall of the cabinet body, and a mounting frame is fixedly connected to the front side surface of the mounting plate. According to the invention, each wire or a strand of wires is separated by the wire clamping shell, so that the wires are prevented from being wound together, electromagnetic induction generated by magnetic field overlapping is avoided, the wires are prevented from being heated by eddy current, the safety of the wires is improved, the service life of the wires is prolonged, and the wires are bent after the abutting rods abut against the wires. According to the invention, the long part of the electric wire is tightened, the long electric wire is prevented from being wound together, the applicability of the device is improved, the abutting rod is kept stable, the fixing effect of the abutting rod on the electric wire is improved, and the detection probe monitors the loosening and winding conditions of the electric wire in the moving process.

Description

Technical Field

[0001] The invention relates to the technical field of electrical cabinets, in particular to an electromagnetic shielding electrical cabinet with an anti-eddy current function. Background Art

[0002] The electrical cabinet is made of steel and is used to protect the normal operation of components. The materials used to make electrical cabinets are generally divided into hot-rolled steel plates and cold-rolled steel plates. Cold-rolled steel plates are softer than hot-rolled steel plates and are more suitable for the production of electrical cabinets. Electrical cabinets are widely used and are mainly used in the chemical industry, environmental protection industry, power system, metallurgical system, industry, nuclear power industry, fire safety monitoring, transportation industry, etc. The electromagnetic shielding electrical cabinet means that the electromagnetic components in the electrical cabinet will neither electromagnetically interfere with other equipment nor be affected by electromagnetic interference from other equipment. In the existing technology, it is difficult to avoid electromagnetic induction inside the device itself, which in turn generates eddy currents, causing heat accumulation to burn out the electrical components and cause damage to the components, resulting in a certain degree of harm.

[0003] The patent with announcement number CN220068172U discloses an electrical cabinet with an electromagnetic shielding box. The patent includes an electrical cabinet body, a support frame is provided on the electrical cabinet body, a guide rail seat is fixedly connected to the support frame, a card plate is movably connected to the guide rail seat, an electromagnetic shielding box is fixedly connected to the card plate, and a baffle is movably connected to the electromagnetic shielding box. The electrical cabinet with an electromagnetic shielding box is provided with a support frame and a guide rail seat inside the electrical cabinet body, and the guide rail seat is used to facilitate the clamping and limiting of the electromagnetic shielding box and the card plate as a whole, so as to place the components inside the electromagnetic shielding box, provide electromagnetic protection for the components, ensure the stable operation of the components, and facilitate the disassembly and assembly of the electromagnetic shielding box, so that the electromagnetic shielding operation of the electrical cabinet body on the components is convenient and meets the use requirements. Although the patent solves the above problems, it is still difficult to avoid the electromagnetic induction generated inside the device itself and then generate eddy currents to cause heat accumulation to burn out the electrical components, resulting in damage to the components and a certain degree of harm. Therefore, an electromagnetic shielding electrical cabinet with anti-eddy current function is proposed to solve the above problems. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide an electromagnetic shielding electrical cabinet with an anti-eddy current function in view of the deficiencies in the above-mentioned prior art.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is: an electromagnetic shielding electrical cabinet with anti-eddy current function, comprising a cabinet body, a cabinet door is hinged on the front side of the cabinet body, a mounting plate is fixedly connected to the rear side of the inner wall of the cabinet body, the front side of the mounting plate is fixedly connected to the mounting frame, the front side of the mounting frame is fixedly connected to the electrical component, the upper and lower sides of the electrical component are fixedly connected with wires, the front side of the mounting plate is fixedly connected to the card shell, the front side of the mounting plate is fixedly connected to the U-shaped clamping rod, the inner surface of the U-shaped clamping rod is slidably connected with an adjusting screw, the circumferential surface of the adjusting screw is fixedly connected to a transmission long rod, the inner surface of the transmission long rod is fixedly connected to a resistance rod, the circumferential surface of the adjusting screw is threadedly connected with a positioning nut, the left side of the inner wall of the cabinet body is fixedly connected to a linear motor, the moving end of the linear motor is fixedly connected to a moving seat one, the right side of the moving seat one is fixedly connected to a detection probe, the interior of the cabinet is provided with an electromagnetic induction device for detecting electromagnetic strength, and the interior of the cabinet is provided with a protective film for preventing the components from being damaged by overheating and causing danger. The overheat protection device is designed to prevent the electric wire from being damaged. The electric wire and the inner surface of the clamping wire shell are in contact with each other. The electric wire and the circumferential surface of the resistance rod are in contact with each other. An electromagnetic shield is arranged inside the cabinet. After the electric component is installed on the mounting plate through the mounting frame, the electric component is connected with the electric wire, and then the electric wire is clamped into the clamping wire shell. The clamping wire shell separates each wire or a strand of wire. When using a longer wire, the adjusting screw is slid in the U-shaped clamping rod to the side away from the mounting plate. The adjusting screw drives the transmission long rod to move, and the transmission long rod drives the resistance rod to move. After the resistance rod contacts the electric wire, The wire is bent, so that the longer part of the wire is tightened. When the transmission long rod and the resistance rod are adjusted to the appropriate position, the positioning nut is turned to make the positioning nut close to the U-shaped clamping rod. At this time, the locking effect of the thread causes the adjusting screw and the positioning nut to clamp the U-shaped clamping rod, so that the adjusting screw itself cannot move, thereby keeping the transmission long rod and the resistance rod stable. The linear motor is started, and the linear motor drives the moving seat to move back and forth up and down. The moving seat drives the detection probe to move back and forth up and down. The detection probe monitors the loosening and entanglement of the wires during the movement.

[0006] Preferably, the electromagnetic induction device includes a connecting rod, a slide rail, a movable seat 2, and an electromagnetic sensor. The connecting rod is fixedly connected to the right side of the movable seat 1, the slide rail is fixedly connected to the right side of the inner wall of the cabinet, the movable seat 2 is slidably connected to the inner surface of the slide rail through a slider, and the electromagnetic sensor is fixedly connected to the left side of the movable seat 2. The electromagnetic induction device also includes a connecting piece, an electromagnetic adsorption plate, an insulating frame, a conductive rod, a resistance ring, a reset spring, and an insulating sleeve. The connecting piece is fixedly connected to the rear side of the movable seat 2, the electromagnetic adsorption plate is fixedly connected to the inner surface of the connecting piece, the insulating frame is fixedly connected to the bottom surface of the inner wall of the cabinet, the conductive rod is slidably connected to the inner surface of the top of the insulating frame, the resistance ring is fixedly connected to the circumferential surface of the conductive rod, the reset spring is fixedly connected to the lower surface of the resistance ring, the insulating sleeve is fixedly connected to the inner surface of the bottom end of the cabinet, the bottom end of the reset spring is fixedly connected to the bottom surface of the inner wall of the cabinet, and the conductive rod and the insulating sleeve The inner surface is slidably connected. When the movable seat 1 moves up and down, it drives the connecting rod to move up and down. The connecting rod then drives the movable seat 2 to move on the slide rail through the slider. When the movable seat 2 moves up and down, it drives the electromagnetic sensor to move up and down to detect the inside of the cabinet. When electromagnetic induction is generated in a certain part of the cabinet, it is captured by the electromagnetic sensor and then the signal is transmitted out. When the movable seat 2 moves up and down, it drives the connecting piece to move up and down. The connecting piece drives the electromagnetic adsorption plate to move up and down. After the electromagnetic adsorption plate approaches the area where the electromagnetic induction is generated by the wire, the magnetic force is enhanced. After the electromagnetic sensor senses the enhanced magnetic force of the electromagnetic adsorption plate, it can more accurately detect which area generates electromagnetic induction. When the electromagnetic adsorption plate moves downward, it contacts the conductive rod. The conductive rod absorbs the excess charge on the electromagnetic adsorption plate and then introduces it into the air for dissipation. After the electromagnetic adsorption plate contacts the conductive rod, it can push the conductive rod downward for a distance. After the electromagnetic adsorption plate is separated from the conductive rod, the reset spring drives the conductive rod to reset elastically through the resistance ring.

[0007] Preferably, the overheat protection device includes a heat dissipation grille, a guide rail, and a partition, the heat dissipation grille is opened on both sides of the cabinet, the guide rail one is fixedly connected to both sides of the cabinet, and the partition is slidably connected to the inner surface of the guide rail one, the overheat protection device also includes a guide rail two, a sliding shaft, a rotating rod, an elastic foam roller shaft, and a pushing plate. The guide rail two is fixedly connected to both sides of the inner wall of the cabinet, the sliding shaft is slidably connected to the inner surface of the guide rail two, the rotating rod is rotatably connected to the inner surface of the sliding shaft, the elastic foam roller shaft is fixedly connected to the circumferential surface of the rotating rod, the pushing plate is fixedly connected to the lower surface of the moving seat two, the pushing plate and the lower surface of the moving seat are fixedly connected, the circumferential surface of the elastic foam roller shaft and the inner wall of the cabinet are in contact with each other, and an elastic telescopic rod is arranged between the bottom surface of the inner wall of the guide rail two and the sliding shaft. When the temperature inside the cabinet is too high, the passage The heat dissipation grid allows ventilation between the inside and outside of the cabinet to take away the heat. When the detection probe and the electromagnetic sensor detect that the electrical components and wires are operating normally or the temperature and humidity outside the cabinet are abnormal, the partition can be pushed to slide in the guide rail one until the heat dissipation grid is covered. When the movable seat two moves downward, it drives the push plate downward. After the push plate contacts the sliding shaft, it drives it to slide downward in the guide rail two. The sliding shaft then drives the rotating rod and the elastic foam roller shaft to move downward. When the elastic foam roller shaft moves downward, it contacts both sides of the inner wall of the cabinet. When the elastic foam roller shaft moves to the position of the heat dissipation grid, it is deformed and partially inserted into the heat dissipation grid to wipe off the dust adhered to the heat dissipation grid. When the elastic foam roller shaft contacts the inner wall of the cabinet when it moves, friction is generated. The friction force causes the elastic foam roller shaft to rotate on the sliding shaft through the rotating rod.

[0008] The present invention adopts the above technical solution to bring the following beneficial effects: 1. The electromagnetic shielding electrical cabinet with anti-eddy current function uses a wire housing to separate each wire or strand of wires to prevent the wires from being entangled together, resulting in overlapping magnetic fields and electromagnetic induction, which in turn generates eddy currents and causes the wires to heat up, thereby improving the safety and service life of the wires. The contact rod bends the wire after it contacts the wire, thereby tightening the longer part of the wire and preventing the longer wires from being entangled together, thereby improving the applicability of the device. The contact rod remains stable, which improves the fixing effect of the contact rod on the wire. The detection probe monitors the loosening and entanglement of the wire during movement, so that the staff can promptly know the internal situation of the cabinet and find problems for maintenance, thereby improving the safety of the device.

[0009] 2. The electromagnetic shielding electrical cabinet with anti-eddy current function, the electromagnetic sensor transmits the captured electromagnetic signal, so that the staff can check the problematic areas in time, reduce the electromagnetic induction between the wires, avoid the generation of eddy currents and cause the heat of the wires to be concentrated in one place and then burn out, which promotes the safety of the device. After the electromagnetic sensor senses the enhanced magnetic force of the electromagnetic adsorption plate, it can more accurately detect which area produces electromagnetic induction, making the detection more accurate and improving the maintenance efficiency of the staff. The conductive rod absorbs the excess charge on the electromagnetic adsorption plate and then guides it into the air to dissipate, avoiding the excess charge affecting the detection effect of the electromagnetic induction device.

[0010] 3. The electromagnetic shielding electrical cabinet with anti-eddy current function has a heat dissipation grille that allows ventilation inside and outside the cabinet to take away heat, preventing heat from continuing to rise and causing large-scale damage to electrical components and wires, which may cause further harm, thereby improving the overall protection effect of the device. The partition shields the heat dissipation grille to prevent dust from entering the device, isolates abnormal temperature and humidity, and further improves the protection effect of the device. The elastic foam roller is deformed to wipe off the dust adhered to the heat dissipation grille, and the dust is sucked into the micropores of the elastic foam roller. The rotation of the elastic foam roller can absorb more dust. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the three-dimensional overall structure of the present invention; Figure 2 It is a schematic diagram of the front side cross-sectional three-dimensional structure of the present invention; Figure 3 It is a schematic diagram of the front side three-dimensional structure of the mounting plate of the present invention; Figure 4 For the present invention Figure 3 A is a schematic diagram of the enlarged structure of the middle part; Figure 5 It is a schematic diagram of the front side cross-sectional three-dimensional structure of the electromagnetic induction device of the present invention; Figure 6 For the present invention Figure 5 Schematic diagram of the enlarged structure of B; Figure 7 It is a schematic diagram of the side and bottom cross-sectional three-dimensional structure of the overheat protection device of the present invention.

[0012] In the figure: 1. cabinet; 2. cabinet door; 3. mounting plate; 4. mounting frame; 5. electrical components; 6. electric wires; 7. wire housing; 71. U-shaped clamping rod; 72. adjusting screw; 73. transmission long rod; 74. contact rod; 75. positioning nut; 76. linear motor; 77. moving seat one; 78. detection probe; 8. electromagnetic induction device; 81. connecting rod; 82. slide rail; 83. moving seat two; 84. electromagnetic sensor; 85. connector; 86. electromagnetic adsorption plate; 87. insulating frame; 88. conductive rod; 89. contact ring; 810. reset spring; 811. insulating sleeve shaft; 9. overheat protection device; 91. heat dissipation grid; 92. guide rail one; 93. partition; 94. guide rail two; 95. sliding shaft; 96. rotating rod; 97. elastic foam roller shaft; 98. pushing plate. DETAILED DESCRIPTION

[0013] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0014] See also Figure 1-Figure 7, one embodiment of the present invention is: an electromagnetic shielding electrical cabinet with anti-eddy current function, comprising a cabinet body 1, a cabinet door 2 is hingedly connected to the front side of the cabinet body 1, a mounting plate 3 is fixedly connected to the rear side of the inner wall of the cabinet body 1, a mounting frame 4 is fixedly connected to the front side of the mounting plate 3, an electrical component 5 is fixedly connected to the front side of the mounting frame 4, and wires 6 are fixedly connected to the upper and lower sides of the electrical component 5, a wire clamping shell 7 is fixedly connected to the front side of the mounting plate 3, a U-shaped clamping rod 71 is fixedly connected to the front side of the mounting plate 3, an adjusting screw 72 is slidably connected to the inner surface of the U-shaped clamping rod 71, a transmission long rod 73 is fixedly connected to the circumferential surface of the adjusting screw 72, a resistance rod 74 is fixedly connected to the inner surface of the transmission long rod 73, a positioning nut 75 is threadedly connected to the circumferential surface of the adjusting screw 72, a linear motor 76 is fixedly connected to the left side of the inner wall of the cabinet body 1, a moving end of the linear motor 76 is fixedly connected to a moving seat 77, and a detection probe 78 is fixedly connected to the right side of the moving seat 77, and the wire clamping shell 7 Each wire or strand of wire 6 is separated to prevent the wires 6 from being entangled together, the magnetic field overlaps to generate electromagnetic induction, and then eddy currents are generated to make the wires 6 heat up, thereby improving the safety and service life of the wires 6. After the contact rod 74 contacts the wire 6, the wire 6 is bent, so that the longer part of the wire 6 is tightened, and the longer wires 6 are prevented from being entangled together, thereby improving the applicability of the device. The cabinet 1 is provided with an electromagnetic induction device 8 for detecting electromagnetic strength, and the cabinet 1 is provided with an overheating protection device 9 for preventing the components from being damaged by overheating. The wire 6 and the inner surface of the wire housing 7 are in contact with each other, and the wire 6 and the circumferential surface of the contact rod 74 are in contact with each other. An electromagnetic shielding device is provided inside the cabinet 1, and the contact rod 74 remains stable, thereby improving the fixing effect of the contact rod 74 on the wire 6. The detection probe 78 monitors the loosening and entanglement of the wire 6 during the movement, so that the staff can know the internal situation of the cabinet 1 in time and find problems for maintenance, thereby improving the safety of the device.

[0015] Working principle: After the electrical component 5 is installed on the mounting plate 3 through the mounting frame 4, the electrical component 5 is connected with the wire 6, and then the wire 6 is clamped into the wire clamping shell 7. The wire clamping shell 7 separates each wire or a strand of wire 6 to prevent the wires 6 from being entangled together and overlapping magnetic fields to generate electromagnetic induction and then generate eddy currents to make the wires 6 heat up, thereby improving the safety and service life of the wires 6. When using longer wires 6, the adjusting screw 72 is slid in the U-shaped clamping rod 71 to the side away from the mounting plate 3. The adjusting screw 72 drives the transmission long rod 73 to move, and the transmission long rod 73 drives the resistance rod 74 to move. After the resistance rod 74 contacts the wire 6, the wire 6 is bent, thereby tightening the longer part of the wire 6, avoiding the longer wires 6 from being entangled together, improving the applicability of the device, and when the transmission When the movable long rod 73 and the resistance rod 74 are adjusted to the appropriate position, the positioning nut 75 is rotated to make the positioning nut 75 close to the U-shaped clamping rod 71. At this time, the locking effect of the thread causes the adjusting screw 72 and the positioning nut 75 to clamp the U-shaped clamping rod 71, so that the adjusting screw 72 itself cannot move, thereby allowing the transmission long rod 73 and the resistance rod 74 to remain stable, thereby improving the fixing effect of the resistance rod 74 on the wire 6, and starting the linear motor 76. The linear motor 76 drives the moving seat 77 to move back and forth up and down. The moving seat 77 drives the detection probe 78 to move back and forth up and down. The detection probe 78 monitors the loosening and entanglement of the wire 6 during the movement, so that the staff can promptly know the internal situation of the cabinet 1 and find problems for maintenance, thereby improving the safety of the device.

[0016] See also Figure 1-Figure 7On the basis of the above embodiment, in another embodiment of the present invention, the electromagnetic induction device 8 includes a connecting rod 81, a slide rail 82, a movable seat 83, and an electromagnetic sensor 84. The connecting rod 81 is fixedly connected to the right side of the movable seat 77, the slide rail 82 is fixedly connected to the right side of the inner wall of the cabinet 1, the movable seat 83 is slidably connected to the inner surface of the slide rail 82 through a slider, and the electromagnetic sensor 84 is fixedly connected to the left side of the movable seat 83. The electromagnetic sensor 84 transmits the captured electromagnetic signal so that the staff can check the problematic area in time, reduce the electromagnetic induction between the wires 6, avoid the generation of eddy currents causing the heat of the wires 6 to be concentrated in one place and then burn out, and promote the safety of the device. The electromagnetic induction device 8 also includes a connector 85, an electromagnetic adsorption plate 86, an insulating frame 87, a conductive rod 88, a contact ring 89, a reset spring 810, an insulating sleeve shaft 811, and a connector 85 It is fixedly connected to the rear side of the movable seat 83, the electromagnetic adsorption plate 86 is fixedly connected to the inner surface of the connecting piece 85, the insulating frame 87 is fixedly connected to the bottom surface of the inner wall of the cabinet 1, the conductive rod 88 is slidably connected to the inner surface of the top of the insulating frame 87, the abutment ring 89 is fixedly connected to the circumferential surface of the conductive rod 88, the reset spring 810 is fixedly connected to the lower surface of the abutment ring 89, the insulating sleeve 811 is fixedly connected to the inner surface of the bottom end of the cabinet 1, the bottom end of the reset spring 810 is fixedly connected to the bottom surface of the inner wall of the cabinet 1, the conductive rod 88 and the inner surface of the insulating sleeve 811 are slidably connected, and the electromagnetic sensor 84 senses that after the magnetic force of the electromagnetic adsorption plate 86 is enhanced, it can more accurately detect which area generates electromagnetic induction, making the detection more accurate and improving the maintenance efficiency of the staff, and the conductive rod 88 absorbs the excess charge on the electromagnetic adsorption plate 86 and then introduces it into the air to dissipate, thereby avoiding the excess charge affecting the detection effect of the electromagnetic induction device 8.

[0017] Working principle: When the movable seat 1 77 moves up and down, it drives the connecting rod 81 to move up and down. The connecting rod 81 then drives the movable seat 2 83 to move on the slide rail 82 through the slider. When the movable seat 2 83 moves up and down, it drives the electromagnetic sensor 84 to move up and down to detect the inside of the cabinet 1. When a certain part of the cabinet 1 generates electromagnetic induction, it is captured by the electromagnetic sensor 84 and then the signal is transmitted, so that the staff can check the problematic area in time, reduce the electromagnetic induction between the wires 6, and further avoid the generation of eddy currents that cause the heat of the wires 6 to be concentrated in one place and then burn out, thereby promoting the safety of the device. When the movable seat 2 83 moves up and down, it drives the connecting piece 85 to move up and down. The connecting piece 85 drives the electromagnetic adsorption plate 86 to move up and down. The electromagnetic adsorption plate 86 is close to the area where the electromagnetic induction is generated by the wire 6. After the electromagnetic adsorption plate 86 is in contact with the conductive rod 88, the conductive rod 88 absorbs the excess charge on the electromagnetic adsorption plate 86 and then guides it into the air to dissipate it, thereby preventing the excess charge from affecting the detection effect of the electromagnetic induction device 8. After the electromagnetic adsorption plate 86 contacts the conductive rod 88, the conductive rod 88 can push the conductive rod 88 downward for a certain distance, thereby making the contact time between the conductive rod 88 and the electromagnetic adsorption plate 86 longer, thereby improving the conductive effect of the conductive rod 88. After the electromagnetic adsorption plate 86 is separated from the conductive rod 88, the reset spring 810 drives the conductive rod 88 to reset elastically through the abutment ring 89.

[0018] See also Figure 1-Figure 7On the basis of the above embodiment, in another embodiment of the present invention, the overheat protection device 9 includes a heat dissipation grid 91, a guide rail 92, and a partition 93. The heat dissipation grid 91 is opened on both sides of the cabinet 1, the guide rail 92 is fixedly connected to both sides of the cabinet 1, and the partition 93 is slidably connected to the inner surface of the guide rail 92. The heat dissipation grid 91 ventilates the inside and outside of the cabinet 1 to take away the heat, thereby preventing the electrical components 5 and the wires 6 from being damaged on a large scale due to the continuous rise of heat, thereby improving the protection effect of the device as a whole. The partition 93 shields the heat dissipation grid 91 to prevent dust from entering the device, isolates abnormal temperature and humidity, and further improves the protection effect of the device. The overheat protection device 9 also includes a guide rail 94, a sliding shaft 95, and a rotating rod 9 6. Elastic foam roller shaft 97, pushing plate 98, guide rail 2 94 is fixedly connected to both sides of the inner wall of cabinet 1, sliding shaft 95 is slidably connected to the inner surface of guide rail 2 94, rotating rod 96 is rotatably connected to the inner surface of sliding shaft 95, elastic foam roller shaft 97 is fixedly connected to the circumferential surface of rotating rod 96, pushing plate 98 is fixedly connected to the lower surface of movable seat 2 83, pushing plate 98 and the lower surface of movable seat 1 77 are fixedly connected, the circumferential surface of elastic foam roller shaft 97 and the inner wall of cabinet 1 are in contact with each other, an elastic telescopic rod is arranged between the bottom surface of the inner wall of guide rail 2 94 and sliding shaft 95, elastic foam roller shaft 97 is deformed to wipe off the dust adhered to heat dissipation grille 91, and the dust is sucked into the micropores of elastic foam roller shaft 97, and the rotation of elastic foam roller shaft 97 can absorb more dust.

[0019] Working principle: When the temperature inside the cabinet 1 is too high, the heat dissipation grille 91 is used to ventilate the inside and outside of the cabinet 1 and take away the heat, so as to prevent the heat from continuing to rise and causing extensive damage to the electrical components 5 and wires 6, and also to prevent further harm caused by damage to the electrical components 5 and wires 6, thereby improving the overall protection effect of the device. When the detection probe 78 and the electromagnetic sensor 84 detect that the electrical components 5 and wires 6 are operating normally or the temperature and humidity outside the cabinet 1 are abnormal, the partition 93 can be pushed to slide in the guide rail 92 until the heat dissipation grille 91 is covered, thereby preventing dust outside the cabinet 1 from entering through the heat dissipation grille 91 during normal operation of the device and affecting the electrical components 5, and also to a certain extent isolating the abnormal temperature and humidity, further improving the protection effect of the device. When the movable seat 83 moves downward, it drives the push plate 98 to move downward. After the push plate 98 contacts the sliding shaft 95, it drives it to slide downward in the guide rail 94. The sliding shaft 95 then drives the rotating rod 96 and the elastic foam roller shaft 97 to move downward. When the elastic foam roller shaft 97 moves downward, it contacts the two sides of the inner wall of the cabinet 1. When the elastic foam roller shaft 97 moves to the position of the heat dissipation grid 91, it is deformed and partially inserted into the heat dissipation grid 91, and the dust adhered to the heat dissipation grid 91 is wiped off. The dust is sucked into the micropores of the elastic foam roller shaft 97 to prevent the dust from entering the cabinet 1. When the elastic foam roller shaft 97 moves and contacts the inner wall of the cabinet 1, friction is generated. The friction force causes the elastic foam roller shaft 97 to rotate on the sliding shaft 95 through the rotating rod 96, so that the elastic foam roller shaft 97 can absorb more dust.

[0020] The present invention provides an electromagnetic shielding electrical cabinet with an anti-eddy current function. There are many methods and ways to implement the technical solution. The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention. All components not specified in this embodiment can be implemented using existing technologies.

Claims

1. An electromagnetic shielding electrical cabinet with eddy current protection function, comprising a cabinet body (1), characterized in that: The cabinet body (1) is hingedly connected to a cabinet door (2) on the front side, the inner wall rear side of the cabinet body (1) is fixedly connected to a mounting plate (3), the front side of the mounting plate (3) is fixedly connected to a mounting frame (4), the front side of the mounting frame (4) is fixedly connected to an electrical component (5), the upper and lower sides of the electrical component (5) are fixedly connected to electrical wires (6), the front side of the mounting plate (3) is fixedly connected to a wire housing (7), the front side of the mounting plate (3) is fixedly connected to a U-shaped clamping rod (71), and the inner side of the U-shaped clamping rod (71) is fixedly connected to the mounting plate (3). The surface is slidably connected to an adjusting screw (72), the circumferential surface of the adjusting screw (72) is fixedly connected to a transmission long rod (73), the inner surface of the transmission long rod (73) is fixedly connected to a resistance rod (74), the circumferential surface of the adjusting screw (72) is threadedly connected to a positioning nut (75), the left side of the inner wall of the cabinet (1) is fixedly connected to a linear motor (76), the moving end of the linear motor (76) is fixedly connected to a moving seat (77), and the right side of the moving seat (77) is fixedly connected to a detection probe (78); An electromagnetic induction device (8) for detecting electromagnetic intensity is arranged inside the cabinet (1), and an overheating protection device (9) for preventing damage caused by overheating of components is arranged inside the cabinet (1).

2. The electromagnetic shielding electrical cabinet with eddy current protection function according to claim 1, characterized in that: The electric wire (6) and the inner surface of the wire housing (7) are in contact with each other, the electric wire (6) and the circumferential surface of the abutment rod (74) are in contact with each other, and an electromagnetic shield is provided inside the cabinet (1).

3. The electromagnetic shielding electrical cabinet with eddy current protection function according to claim 2, characterized in that: The electromagnetic induction device (8) comprises a connecting rod (81), a slide rail (82), a second movable seat (83), and an electromagnetic sensor (84); the connecting rod (81) is fixedly connected to the right side of the first movable seat (77); the slide rail (82) is fixedly connected to the right side of the inner wall of the cabinet (1); the second movable seat (83) is slidably connected to the inner surface of the slide rail (82) via a slider; and the electromagnetic sensor (84) is fixedly connected to the left side of the second movable seat (83).

4. The electromagnetic shielding electrical cabinet with eddy current protection function according to claim 3, characterized in that: The electromagnetic induction device (8) further comprises a connecting piece (85), an electromagnetic adsorption plate (86), an insulating frame (87), a conductive rod (88), a contact ring (89), a reset spring (810), and an insulating sleeve (811); the connecting piece (85) is fixedly connected to the rear side surface of the second movable seat (83); the electromagnetic adsorption plate (86) is fixedly connected to the inner surface of the connecting piece (85); the insulating frame (87) is fixedly connected to the bottom surface of the inner wall of the cabinet (1); the conductive rod (88) is slidably connected to the inner surface of the top of the insulating frame (87); the contact ring (89) is fixedly connected to the circumferential surface of the conductive rod (88); the reset spring (810) is fixedly connected to the lower surface of the contact ring (89); and the insulating sleeve (811) is fixedly connected to the inner surface of the bottom end of the cabinet (1).

5. The electromagnetic shielding electrical cabinet with eddy current protection function according to claim 4, characterized in that: The bottom end of the return spring (810) is fixedly connected to the bottom surface of the inner wall of the cabinet (1), and the conductive rod (88) is slidably connected to the inner surface of the insulating sleeve shaft (811).

6. The electromagnetic shielding electrical cabinet with eddy current protection function according to claim 5, characterized in that: The overheat protection device (9) comprises a heat dissipation grid (91), a guide rail (92), and a partition (93); the heat dissipation grid (91) is provided on both sides of the cabinet (1); the guide rail (92) is fixedly connected to both sides of the cabinet (1); and the partition (93) is slidably connected to the inner surface of the guide rail (92).

7. The electromagnetic shielding electrical cabinet with eddy current protection function according to claim 6, characterized in that: The overheat protection device (9) further comprises a second guide rail (94), a sliding shaft (95), a rotating rod (96), an elastic foam roller shaft (97), and a pushing plate (98); the second guide rail (94) is fixedly connected to both sides of the inner wall of the cabinet (1); the sliding shaft (95) is slidably connected to the inner surface of the second guide rail (94); the rotating rod (96) is rotatably connected to the inner surface of the sliding shaft (95); the elastic foam roller shaft (97) is fixedly connected to the circumferential surface of the rotating rod (96); and the pushing plate (98) is fixedly connected to the lower surface of the second moving seat (83).

8. The electromagnetic shielding electrical cabinet with eddy current protection function according to claim 7, characterized in that: The push plate (98) is fixedly connected to the lower surface of the first movable seat (77), the circumferential surface of the elastic foam roller shaft (97) and the inner wall of the cabinet (1) are in contact with each other, and an elastic telescopic rod is provided between the bottom surface of the inner wall of the second guide rail (94) and the sliding shaft (95).

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