Intelligent switch cabinet based on maintenance power-off protection and maintenance method thereof

Abstract

The invention relates to power distribution equipment, in particular to an intelligent switch cabinet based on maintenance power-off protection and a maintenance method thereof.The intelligent switch cabinet based on maintenance power-off protection comprises a shell installed in the switch cabinet, and the shell is connected with a power source and components in the switch cabinet in series; a power-off mechanism is arranged in the shell, the power-off mechanism comprises a magnetic attraction assembly and a locking assembly, the magnetic attraction assembly comprises a moving part arranged in the shell in a sliding mode, the moving part is connected with a pushing rod rotationally installed on the shell through a deflection structure, and when power-on current flowing through the shell is too large, the moving part is matched with the locking assembly; when the moving part moves, the deflection structure is triggered to drive the push rod to rotate relative to the shell; and the prediction assembly is arranged in the shell and comprises a partition piece arranged in the shell in a sliding mode, when the input current is too large, the partition piece is matched with the deflection structure, the push rod can be locked, and therefore a maintainer is prompted that a fault occurs in the shell.

Description

Technical Field

[0001] The present invention relates to a power distribution device, specifically an intelligent switch cabinet based on maintenance power-off protection and a maintenance method thereof. Background Technique

[0002] A power switch cabinet is a switch device that plays an important role in the power system and is a power distribution device that assembles relevant electrical equipment into a closed metal shell according to a certain circuit scheme. When a power or line failure occurs, the switch cabinet can quickly cut off the faulty part from the power grid. In addition to ensuring the safe operation of other fault-free parts of the power system, it can also protect the safety of equipment and maintenance personnel.

[0003] However, there are many factors for the failure of the switch cabinet at present, such as excessive input current, power trip, too high internal temperature, etc. After excluding the temperature factor, if the switch cabinet still cannot work normally, it is necessary to check the protection devices inside the switch cabinet. The protection devices inside the switch cabinet include but are not limited to air switches, disconnectors, load switches, circuit breakers, relays, etc. At this time, the troubleshooting process for the circuit breaker is relatively complex. Usually, instruments are needed to check and test the circuit breaker. If it is found that the internal components of the circuit breaker are damaged, disassembly and replacement are also required, and this process is extremely time-consuming and laborious. Summary of the Invention

[0004] The purpose of the present invention is to provide an intelligent switch cabinet based on maintenance power-off protection and a maintenance method thereof to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the present invention provides the following technical solutions:

[0006] An intelligent switch cabinet based on maintenance power-off protection, comprising: a housing installed inside the switch cabinet, and the housing is connected in series with the power supply and the components inside the switch cabinet;

[0007] A power-off mechanism is arranged inside the housing, and the power-off mechanism includes a magnetic attraction component and a locking component. The magnetic attraction component includes a moving part slidably arranged inside the housing. The moving part is connected to a push rod rotatably installed on the housing through a deflection structure. When the current flowing through the housing is too large, the moving part cooperates with the locking component to disconnect the circuit inside the housing. When the moving part moves, the deflection structure is triggered, which will drive the push rod to rotate relative to the housing;

[0008] A prediction component is arranged inside the housing, including a baffle part slidably arranged inside the housing. When the input current is too large, the baffle part cooperates with the deflection structure to lock the push rod.

[0009] The intelligent switch cabinet based on maintenance power-off protection as described above: The magnetic attraction structure includes an iron core arranged inside the housing. A wire is wound around the iron core. One end of the wire passes through the housing and is connected to a power source, and the other end is connected to a socket cylinder slidably arranged inside the housing. The socket cylinder is electrically connected to the prediction component.

[0010] The intelligent switch cabinet based on maintenance power-off protection as described above: The moving part includes an armature. The armature is slidably connected to a guide rod arranged inside the housing, and the armature is fixedly connected to the socket cylinder.

[0011] The intelligent switch cabinet based on maintenance power-off protection as described above: The deflection structure includes a toothed plate fixedly connected to the socket cylinder. The toothed plate meshes with a gear coaxially arranged with the rotating shaft of the push rod.

[0012] The intelligent switch cabinet based on maintenance power-off protection as described above: The locking component includes a telescopic structure and a locking piece. The telescopic structure includes a socket cylinder fixedly connected to the armature. An insertion rod is elastically slidably arranged inside the socket cylinder. One end of the insertion rod away from the socket cylinder is rotatably installed with a pulley.

[0013] The intelligent switch cabinet based on maintenance power-off protection as described above: The locking piece includes a positioning piece arranged inside the housing. A fitting groove is formed on the positioning piece. The fitting groove cooperates with the pulley to be able to fix the position of the armature.

[0014] The intelligent switch cabinet based on maintenance power-off protection as described above: The prediction component includes a disassembly abutting piece and a triggering piece. The disassembly abutting piece includes a disassembly tube. An elastic pressing piece is arranged on the disassembly tube. The elastic pressing piece cooperates with an installation groove formed on the housing to be able to make the disassembly tube detachably connected to the housing, and a contact rod is installed inside the disassembly tube.

[0015] The intelligent switch cabinet based on maintenance power-off protection as described above: The triggering piece includes a triggering block slidably arranged inside the housing. A longitudinal piece is arranged on the triggering block. A protruding column is arranged on the longitudinal piece. The protruding column is slidably connected to a moving plate arranged inside the housing.

[0016] The intelligent switch cabinet based on maintenance power-off protection as described above: The partition piece includes a mounting piece arranged on the moving plate. One end of the mounting piece away from the moving plate is rotatably installed with a deflecting plate. The deflecting plate is connected to the mounting piece through an elastic sheet.

[0017] A maintenance method for an intelligent switch cabinet based on maintenance power-off protection is also proposed. An intelligent switch cabinet based on maintenance power-off protection as described above is adopted. The method is characterized by including the following steps:

[0018] Step 1: When the current in the housing is relatively large, the moving part rises along the length direction of the housing, separating the socket cylinder from the disassembly cylinder, and at the same time driving the deflection structure to act, causing the push rod to deflect towards the lower end of the housing, disconnecting the circuit in the housing, powering off the switch cabinet, and at the same time the locking component will lock the position of the moving part to keep the deflected position of the push rod unchanged;

[0019] Step 2: After the switch cabinet is powered off, when the push rod is pushed upward, two situations will occur:

[0020] S: The push rod is pushed. Under the action of the deflection structure, the pushed push rod drives the moving part to descend, making the socket cylinder reconnect with the disassembly cylinder, turning on the power, and the switch cabinet will resume normal operation;

[0021] S: The push rod cannot be pushed, that is, the fuse in the disassembly cylinder is blown, and the baffle is triggered to block the toothed plate after rising, making the push rod unable to be pushed. At this time, replace the disassembly tube. The replaced disassembly tube cooperates with the trigger part, forcing the baffle to return to its original position. Subsequently, the push rod can be normally pushed and reset, and the switch cabinet will resume normal operation;

[0022] Step 3: After the above operations are completed, if the switch cabinet does not resume normal operation, further maintenance is required to ensure that the switch cabinet can operate normally.

[0023] Compared with the prior art, the beneficial effects of the present invention are:

[0024] By setting a power-off mechanism and a prediction component, when the current flowing into the housing is too large, the socket cylinder fixedly connected to the armature will separate from the prediction component, disconnecting the circuit in the housing, thereby powering off the switch cabinet and preventing excessive current from damaging the internal components of the switch cabinet;

[0025] Moreover, when the socket cylinder separates from the prediction component, the deflection structure is triggered, causing the push rod to deflect relative to the housing. At the same time, with the cooperation of the locking component, the position of the push rod is stably in the downward swing state, intuitively prompting the maintenance personnel that there is a problem in the housing, without the need for instrument detection, thus facilitating the personnel to perform maintenance on the housing:

[0026] When the maintenance personnel perform maintenance, when the push rod is pushed upward, if the push rod can be reset, the fault in the housing is discharged; if it cannot be reset, it indicates that there is a fault in the disassembly abutting part triggering part of the prediction component in the housing. At this time, by replacing the disassembly tube, the push rod can then be pushed back to its original position, thereby discharging the fault in the housing, bringing convenience to the overall maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic structural diagram of an intelligent switch cabinet based on maintenance power-off protection.

[0028] Figure 2 It is a schematic structural diagram inside the housing of an intelligent switch cabinet based on maintenance power-off protection.

[0029] Figure 3 It is a schematic structural diagram of the power-off mechanism in an intelligent switch cabinet based on maintenance power-off protection.

[0030] Figure 4 It is a schematic structural diagram of the locking component in an intelligent switch cabinet based on maintenance power-off protection.

[0031] Figure 5 It is a schematic structural diagram of the deflection structure in an intelligent switch cabinet based on maintenance power-off protection.

[0032] Figure 6 It is a schematic structural diagram of the prediction component in an intelligent switch cabinet based on maintenance power-off protection.

[0033] Figure 7 It is a schematic structural diagram of the disassembly abutting piece in an intelligent switch cabinet based on maintenance power-off protection.

[0034] Figure 8 It is a schematic structural diagram of the partition piece in an intelligent switch cabinet based on maintenance power-off protection.

[0035] Figure 9 It is a schematic structural diagram of the trigger piece in an intelligent switch cabinet based on maintenance power-off protection.

[0036] In the figure: 1. Housing; 101. T-shaped rod; 102. Fixing piece; 2. Pushing rod; 201. Rotating shaft; 3. Pressing piece; 4. Iron core; 5. Wire; 6. Armature; 7. Disassembly tube; 701. Fuse; 8. Trigger block; 801. Arc surface; 9. Moving plate; 901. Inclined groove; 902. T-shaped groove; 10. Socketing cylinder; 11. Toothed plate; 12. Guide rod; 13. Elastic piece; 14. Positioning piece; 1401. First locking groove; 1402. Second locking groove; 1403. First inclined surface; 1404. Second inclined surface; 15. Inserting rod; 1501. Flap; 16. Spring; 17. Inserting cylinder; 18. Gear; 19. Abutting rod; 20. Longitudinal piece; 2001. Protrusion; 21. Deflection plate; 22. Mounting piece; 2201. Abutting surface. Detailed implementation manners

[0037] The following will detail various exemplary embodiments, features, and aspects of the present application with reference to the accompanying drawings. Like reference numerals in the drawings denote functionally identical or similar elements. Although various aspects of the embodiments are shown in the drawings, the drawings do not necessarily need to be drawn to scale unless otherwise specified.

[0038] As used herein, the term "exemplary" means "serving as an example, embodiment, or illustration". Any embodiment described herein as "exemplary" should not necessarily be construed as superior to or better than other embodiments.

[0039] In addition, for a better illustration of the present application, numerous specific details are given in the following specific embodiments. Those skilled in the art should understand that the present application can also be implemented without some of these specific details. In some instances, methods, means, and components well-known to those skilled in the art are not described in detail in order to highlight the gist of the present application.

[0040] Please refer to Figures 1-9 , in an embodiment of the present invention, an intelligent switchgear based on maintenance power-off protection includes: a housing 1 installed inside the switchgear, and the housing 1 is connected in series with the power supply and the components inside the switchgear;

[0041] Specifically, the above-mentioned housing 1 is arranged inside the switchgear 1 and is connected in series between the switchgear power supply and the components. Through the power-off mechanism and the prediction component arranged inside the housing 1, the power supply is connected to the components inside the switchgear, and when the current input into the switchgear 1 is too large, the power-off mechanism will cut off the power supply of the switchgear, thereby protecting the components inside the switchgear and preventing the internal components from being damaged, and further reducing losses.

[0042] A power-off mechanism is arranged inside the housing 1. The power-off mechanism includes a magnetic attraction component and a locking component. The magnetic attraction component includes a moving part slidably arranged inside the housing 1. The moving part is connected to a push rod 2 rotatably installed on the housing 1 through a deflection structure. When the current flowing through the housing 1 is too large, the moving part cooperates with the locking component to be able to disconnect the circuit inside the housing 1, and when the moving part moves, the deflection structure is triggered and will drive the push rod 2 to rotate relative to the housing 1;

[0043] The magnetic attraction structure includes an iron core 4 arranged inside the housing 1. A wire 5 is wound around the iron core 4. One end of the wire 5 passes through the housing 1 and is connected to the power supply, and the other end is connected to a socket cylinder 10 slidably arranged inside the housing 1. The socket cylinder 10 is electrically connected to the prediction component arranged inside the housing 1;

[0044] The moving part includes an armature 6. The armature 6 is slidably connected to a guide rod 12 arranged inside the housing 1, and the armature 6 is fixedly connected to the socket cylinder 10;

[0045] Specifically, please refer to Figure 2 、 Figure 3, in the initial state, the above-mentioned armature 6 is far from the iron core 4. When the wire 5 is energized, the iron core 4 will be instantaneously magnetized. As the current changes, the stronger the magnetism of the iron core 4, thus attracting the armature 6 to approach the iron core 4 along the axial direction of the guide rod 12. At this time, the socket cylinder 10 fixedly connected to the armature 6 will be separated from the prediction component, so that the circuit inside the housing 1 is disconnected, thereby powering off the switch cabinet and preventing excessive current from damaging the internal components of the switch cabinet. And when the socket cylinder 10 rises following the armature 6, the deflection structure is triggered, causing the push rod 2 to deflect relative to the housing 1, thus reminding the personnel visually that there is an abnormality in the circuit inside the housing 1 for subsequent personnel to perform maintenance on the inside of the housing 1.

[0046] For details, please refer to Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 , the deflection structure includes a toothed plate 11 fixedly connected to the socket cylinder 10, and the toothed plate 11 meshes with a gear 18 coaxially arranged with the rotating shaft 201 of the push rod 2;

[0047] In the initial state, the above-mentioned push rod 2 deflects upward towards the housing 1 (as shown in Figure 1 、 Figure 2 ), and the circuit inside the housing 1 is connected normally. Combining the above, when the current flowing into the housing 1 is too large, the magnetized iron core 4 will attract the armature 7 to move towards the iron core 4. At this time, the socket cylinder 10 fixed to the armature 7 will drive the toothed plate 11 to rise along the axial direction of the guide rod 12 following the armature 7. During the rising process, the toothed plate 11 will drive the gear 18 to rotate clockwise with the rotating shaft 201 as the rotation center (combined with Figure 5 ), thus causing the push rod 2 to deflect downward towards the housing 1, and the downward-swinging push rod 2 will visually prompt the maintenance personnel that there is an abnormality in the housing 1, thus facilitating the maintenance personnel to troubleshoot the faults of the housing 1.

[0048] Furthermore, the locking component includes a telescopic structure and a locking member. The telescopic structure includes a plug-in cylinder 17 fixedly connected to the armature 6. An insertion rod 15 is elastically slidably arranged inside the plug-in cylinder 17. The insertion rod 15, and a pulley is rotatably installed at one end of the insertion rod 15 away from the plug-in cylinder 17;

[0049] The locking member includes a positioning member 14 arranged inside the housing 1. A fitting groove body is opened on the positioning member 14, and the fitting groove body cooperates with the pulley to be able to fix the position of the armature 6;

[0050] Specifically, please refer to Figure 4, a spring 16 is also slidably arranged on the above-mentioned insertion rod 15. One end of the spring 16 abuts against the disassembly cylinder 17, and the other end abuts against a stop piece 1501 formed on the insertion rod 15. In particular, the above-mentioned fitting groove body includes a first locking groove 1401, a first inclined surface 1403, a second locking groove 1402, and a second inclined surface 1404, and the first locking groove 1401 and the first inclined surface 1403 are symmetrically arranged with the second locking groove 1402 and the second inclined surface 1404. In the initial state, the spring 16 is in a compressed state. The compressed spring 16 will push the insertion rod 15 away from the insertion cylinder 17, so that the pulley is combined with the first locking groove 1401. When the current flowing into the housing 1 is too large, the iron core 4 with stronger magnetism will attract the armature 6 to rise along the axial direction of the guide rod 12. At this time, the insertion cylinder 17 fixed on the armature 6 will drive the pulley to separate from the first locking groove 1401 and slide along the first inclined surface 1403. During the sliding process, the first inclined surface 1403 will force the insertion rod 15 to rise along the axial direction of the insertion cylinder 17, so that the spring 16 is further compressed. After the pulley moves beyond the symmetry center of the first inclined surface 1403 and the second inclined surface 1404, the spring 16 releases its elastic potential energy, which will force the pulley to automatically slide along the second inclined surface 1404 and finally be combined with the second locking groove 1402. At this time, under the action of the elastic potential energy stored in the spring 16, the armature 6 will not slide back to the initial position due to its own gravity, and further makes the position of the push rod 2 stable in the downward swing state to prompt the maintenance personnel that there is a problem in the housing 1.

[0051] Please refer to Figure 2 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 , an intelligent switch cabinet based on maintenance power-off protection further includes a prediction component arranged in the housing 1, including a partition member slidably arranged in the housing 1. When the current flowing in is too large, the partition member cooperates with the deflection structure to lock the push rod 2.

[0052] The prediction component includes a disassembly abutting member and a triggering member. The disassembly abutting member includes a disassembly tube 7. An elastic pressing member 3 is arranged on the disassembly tube 7. The elastic pressing member 3 cooperates with an installation groove formed on the housing 1 to enable the disassembly tube 7 to be detachably connected to the housing 1, and a contact rod 19 is installed in the disassembly tube 7.

[0053] For details, please refer to Figure 6 , Figure 7, the above-mentioned elastic pressing member 3 includes two groups of symmetrically arranged pressing elastic sheets. The two groups of pressing elastic sheets are fixedly connected to the disassembly tube 7 and can be engaged in the mounting groove that can be opened and closed on the outer shell 1 in a state of moving away from each other, so that the disassembly tube 7 can be fixed in the outer shell 1; and when it is necessary to replace the disassembly tube 7, hold the two groups of pressing elastic sheets and squeeze them inward, and then pull them out of the outer shell 1, and the disassembly tube 7 can be separated from the outer shell 1;

[0054] Specifically, a fuse 701 is installed in the disassembly tube 7. The fuse 701 is connected to an abutting rod 19 slidably arranged in the disassembly tube 7. When the current passing through the wire 5 is too large, the fuse 701 is melted. At this time, the supporting force of the broken fuse 701 on the abutting rod 19 is cancelled, and the trigger member will drop under its own gravity, thereby driving the partition member to move to partition the raised toothed plate 11, so that when the push rod 2 is pushed upward later, the gear 18 cannot rotate, thereby reminding the maintenance personnel that the fuse 701 in the disassembly tube 7 in the outer shell 1 has been melted.

[0055] The trigger member includes a trigger block 8 slidably arranged in the outer shell 1. A longitudinal member 20 is arranged on the trigger block 8, and a protruding column 2001 is arranged on the longitudinal member 20. The protruding column 2001 is connected to a moving plate 9 slidably arranged in the outer shell 1. Specifically, the protruding column 2001 is slidably arranged in an inclined groove 901 opened on the moving plate 9;

[0056] Preferably, please refer to Figure 6 、 Figure 9 , the above-mentioned longitudinal member 20 is slidably connected to a fixing member 102 arranged inside the outer shell 1. Under the restraint of the fixing member 102, the trigger block 8 can only move up and down along the length direction of the outer shell 1 following the longitudinal member 20. And a T-shaped groove 902 is opened on one side of the moving plate 9 away from the pressing member 3. A T-shaped rod 101 fixedly connected to the outer shell 1 is slidably arranged in the T-shaped groove 902. With the cooperation of the T-shaped groove 902 and the T-shaped rod 101, the moving plate 9 can only slide along the width direction of the outer shell 1;

[0057] Specifically, the above-mentioned trigger block 8 is arranged in a "rectangular" structure, and a larger arc surface 801 is arranged on the side facing the push rod 2 and close to the bottom of the outer shell 1. In the initial state, the abutting rod 19 is in contact with the trigger block 8, as Figure 5 、 Figure 6As shown, at this time, the protruding column 2001 is located at the stroke end of the inclined slot 901. When the current passing through the housing 1 is too large, causing the fuse 701 in the disassembly tube 7 to be melted, the supporting force of the abutting rod 19 connected to the fuse 701 on the trigger block 8 is cancelled. Subsequently, the trigger block 8 will move toward the bottom of the housing 1 under the influence of gravity. At this time, the contact and extrusion generated between the protruding column 2001 fixed on the longitudinal member 20 and the inclined slot 901 will drive the moving plate 9 to move toward the tooth plate 11. After the push rod 2 is deflected to the swing state, the barrier connected to the moving plate 9 is just located below the tooth plate 11, so that the maintenance personnel cannot push the push rod 2 upwards when troubleshooting the housing 1, thereby reminding the maintenance personnel that the fuse 701 in the housing 1 is melted and needs to be replaced:

[0058] At this time, hold the pressing piece 3 and force the two groups of pressing elastic sheets to approach each other, then pull the pressing piece 3 out of the shell 1, so that the disassembly tube 7 with the broken fuse 701 can be separated from the shell 1; when using a new disassembly tube 7 for replacement, the disassembly tube 7 pushed into the shell 1 will make the abutment rod 19 contact with the arc surface 801, and as the disassembly tube 7 continues to be pushed in, the extrusion and squeezing generated between the abutment rod 19 and the arc surface 801 will force the trigger block 8 to rise along the length direction of the shell 1, and during the rising process of the trigger block 8, the cooperation between the protruding column 2001 and the inclined groove 901 will force the movable plate 9 to pull the barrier back to the initial position, and then the inspection personnel can push the push rod 2 normally, and then complete the fault troubleshooting in the shell 1. If the switch cabinet still cannot work normally at this time, the maintenance personnel need to further check the lines in the switch cabinet.

[0059] For further information, see Figure 4 , Figure 5 , Figure 8 The barrier member includes a mounting member 22 disposed on the movable plate 9, and a deflection plate 21 is rotatably mounted on one end of the mounting member 22 away from the movable plate 9, and the deflection plate 21 is connected to the mounting member 22 via a spring sheet 13;

[0060] For details, please combine Figure 6 , Figure 8 The mounting member 22 is formed with an abutting surface 2201 on one side facing the trigger block 8, and the abutting surface 2201 enables the deflection plate 21 to deflect only in a direction away from the trigger block 8. In combination with the above, when the current flowing through the housing 1 is too large, the power-off mechanism will force the armature 6 to rise, and during the rising process of the armature 6, the toothed plate 11 fixed to the armature 6 will drive the gear 18 to rotate clockwise (in combination with the Figure 5), causing the push rod 2 to swing downward. During this process, since the energized current is too large, the fuse 701 in the disassembly tube 7 will be blown. Subsequently, with the cooperation of the trigger member, the deflection plate 21 will move a certain distance towards the toothed plate 11 at the same time, so that part of the deflection plate 21 blocks above the toothed plate 11. At this time, the rising toothed plate 11 will force the deflection plate 21 to deflect away from the trigger block 8. After the push rod 2 is stably placed in the downward swing position, the toothed plate 11 is separated from the deflection plate 21. Subsequently, the deflection plate 21 will, under the action of the elastic piece 13, return to a state parallel to the mounting member 22 and be placed below the toothed plate 11, so that when maintenance personnel perform maintenance on the housing 1, they cannot push the push rod 2 upward, thereby informing the maintenance personnel that the fuse 701 in the housing 1 is damaged for quick maintenance by the maintenance personnel.

[0061] A smart switch cabinet maintenance method based on maintenance power-off protection is also proposed. Using the above-mentioned smart switch cabinet based on maintenance power-off protection, it is characterized by including the following steps:

[0062] Step 1: When the current in the housing 1 is relatively large, the moving member rises along the length direction of the housing 1, separating the socket cylinder 10 from the disassembly cylinder 7, and at the same time driving the deflection structure to act, causing the push rod 2 to swing towards the lower end of the housing 1, disconnecting the circuit in the housing 1, causing the switch cabinet to power off, and at the same time the locking component will lock the position of the moving member so that the position of the push rod 2 after deflection remains unchanged;

[0063] Step 2: After the switch cabinet is powered off, when pushing the push rod 2 upward, two situations will occur:

[0064] S1: The push rod 2 is pushed. The pushed push rod 2, under the action of the deflection structure, drives the moving member to descend, causing the socket cylinder 10 to be reconnected to the disassembly cylinder 7, turning on the power, and the switch cabinet will resume normal operation;

[0065] S2: The push rod 2 cannot be pushed, that is, the fuse 701 in the disassembly tube 7 is blown. When the baffle member is triggered, it will block the rising toothed plate 11, making the push rod 2 unable to be pushed. At this time, replace the disassembly tube 7. The replaced disassembly tube 7 cooperates with the trigger member, forcing the baffle member to return to its original state. Subsequently, the push rod 2 can be normally pushed and reset, and the switch cabinet will resume normal operation;

[0066] Step 3: After the above operations are completed, if the switch cabinet does not resume normal operation, further maintenance is required to ensure that the switch cabinet can operate normally.

[0067] It is obvious to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, in any aspect, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Accordingly, all changes that fall within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present invention. Any reference signs in the claims should not be construed as limiting the claims involved.

[0068] In addition, it should be understood that although this specification is described in terms of embodiments, not every embodiment only contains an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An intelligent switch cabinet based on maintenance power-off protection, comprising: A housing (1) installed inside a switchgear cabinet, the housing (1) being connected in series with a power source and components inside the switchgear cabinet; characterized in that: A power-off mechanism is arranged inside the housing (1), the power-off mechanism includes a magnetic attraction component and a locking component, the magnetic attraction component includes a moving part slidably arranged inside the housing (1), the moving part is connected to a push rod (2) rotatably installed on the housing (1) through a deflection structure, when the energizing current flowing through the housing (1) is too large, the moving part cooperates with the locking component to be able to disconnect the circuit inside the housing (1), and when the moving part moves, the deflection structure is triggered and will drive the push rod (2) to rotate relative to the housing (1); A prediction component is arranged inside the housing (1), including a blocking part slidably arranged inside the housing (1), when the input current is too large, the blocking part cooperates with the deflection structure to be able to lock the push rod (2).

2. The intelligent switch cabinet based on maintenance power-off protection according to claim 1, wherein The magnetic attraction structure includes an iron core (4) arranged inside the housing (1), a wire (5) is wound around the iron core (4), one end of the wire (5) passes through the housing (1) and is connected to a power source, and the other end is connected to a socket cylinder (10) slidably arranged inside the housing (1), and the socket cylinder (10) is electrically connected to the prediction component.

3. The intelligent switch cabinet based on maintenance power-off protection according to claim 2, wherein, The moving part includes an armature (6), the armature (6) is slidably connected to a guide rod (2) arranged inside the housing (1), and the armature (6) is fixedly connected to the socket cylinder (10).

4. The intelligent switch cabinet based on maintenance power-off protection according to claim 2, wherein The deflection structure includes a toothed plate (11) fixedly connected to the socket cylinder (10), and the toothed plate (11) meshes with a gear (18) coaxially arranged with the rotation shaft (201) of the push rod (2).

5. An intelligent switchgear based on maintenance power-off protection according to claim 3, characterized in that, The locking component includes a telescopic structure and a locking part, the telescopic structure includes a plug-in cylinder (17) fixedly connected to the armature (6), a plug-in rod (15) is elastically slidably arranged inside the plug-in cylinder (17), the plug-in rod (15), and a pulley is rotatably installed at one end of the plug-in rod (15) away from the plug-in cylinder (17).

6. The intelligent switch cabinet based on maintenance power-off protection according to claim 5, wherein, The locking part includes a positioning part (14) arranged inside the housing (1), a fitting groove body is formed on the positioning part (14), and the fitting groove body cooperates with the pulley to be able to fix the position of the armature (6).

7. An intelligent switch cabinet based on maintenance power-off protection according to claim 2, characterized in that, The prediction component includes a detachable abutting part and a triggering part, the detachable abutting part includes a detachable tube (7), an elastic pressing part (3) is arranged on the detachable tube (7), the elastic pressing part (3) cooperates with an installation groove formed on the housing (1) to be able to make the detachable tube (7) detachably connected to the housing (1), and a abutting rod (19) is installed inside the detachable tube (7).

8. An intelligent switch cabinet based on maintenance power-off protection according to claim 7, characterized in that, The triggering part includes a trigger block (8) slidably arranged inside the housing (1), a longitudinal part (20) is arranged on the trigger block (8), a protruding column (2001) is arranged on the longitudinal part (20), and the protruding column (2001) is slidably arranged and connected to a moving plate (9) inside the housing (1).

9. An intelligent switch cabinet based on maintenance power-off protection according to claim 8, characterized in that, The partition member includes a mounting member (22) provided on the moving plate (9). One end of the mounting member (22) away from the moving plate (9) is rotatably mounted with a deflecting plate (21), and the deflecting plate (21) is connected to the mounting member (22) through an elastic piece (13).

10. An intelligent switchgear maintenance method based on maintenance power-off protection, using the intelligent switchgear based on maintenance power-off protection described in claim 1 above, characterized in that, It includes the following steps: Step 1: When the current in the housing (1) is relatively large, the moving member rises along the length direction of the housing (1), separating the socket cylinder (10) from the disassembly cylinder (7). At the same time, it drives the deflection structure to act, causing the push rod (2) to swing towards the lower end of the housing (1), disconnecting the circuit in the housing (1), so that the switch cabinet is powered off. At the same time, the locking component will lock the position of the moving member to keep the position of the push rod (2) unchanged after swinging; Step 2: After the switch cabinet is powered off, when the push rod (2) is pushed upward, two situations will occur: S(1): The push rod (2) is pushed. Under the action of the deflection structure, the pushed push rod (2) drives the moving member to descend, so that the socket cylinder (10) is reconnected to the disassembly cylinder (7), the power is turned on, and the switch cabinet will resume normal operation; S(2): The push rod (2) cannot be pushed, that is, the fuse (701) in the disassembly cylinder (7) is blown. When the partition member is triggered, it will block the raised toothed plate (11), making the push rod (2) unable to be pushed. At this time, replace the disassembly tube (7). The replaced disassembly tube (7) cooperates with the trigger member, forcing the partition member to return to its original state. Subsequently, the push rod (2) can be normally pushed and reset, and the switch cabinet will resume normal operation; Step 3: After the above operations are completed, if the switch cabinet does not resume normal operation, further maintenance is required to ensure that the switch cabinet can operate normally.

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