An electrical cabinet that avoids opening the cable chamber during maintenance

Abstract

The present invention relates to the technical field of distribution cabinets, and in particular to an electric cabinet that avoids opening the cable chamber during maintenance, including a cabinet body, a circuit breaker module and a cable module both arranged in the cabinet body, the circuit breaker module being connected to the cable module. It is characterized in that the cabinet body is provided with a protection chamber and a cable chamber, the protection chamber is located directly above the cable chamber, the circuit breaker module is installed in the protection chamber, and the cable module is installed in the cable chamber; the protection chamber is detachably provided with a protection door, and the cable chamber is detachably provided with a cable door; by dividing the electric cabinet into a protection chamber and a cable chamber, and having only cables in the cable chamber and installing the circuit breaker module in the protection chamber, when the present invention is maintained, it is not necessary to expose the cables, ensuring the safety of the cables.

Description

Technical Field

[0001] The present invention relates to the technical field of distribution cabinets, and in particular to an electric cabinet that avoids opening the cable chamber during maintenance. Background Art

[0002] In high-voltage or low-voltage distribution cabinets, a circuit breaker is usually used to connect the cables so that power can be cut off for protection when an abnormality occurs in the circuit. As Figure 6 shown, an air-filled cabinet is a type of electric cabinet. Usually, the circuit breaker and the cables are installed in the same space. When the space is opened for maintaining the circuit breaker, the cables have to be exposed to the outside. Obviously, the protection and use of the cables are not good. Summary of the Invention

[0003] The present invention provides an electric cabinet that avoids opening the cable chamber during maintenance, and through the transformation of the structure, the cables are independently located in a space.

[0004] To solve the above technical problems, the present invention adopts the following technical solutions:

[0005] An electric cabinet that avoids opening the cable chamber during maintenance provided by the present invention includes a cabinet body, a circuit breaker module and a cable module both arranged in the cabinet body. The circuit breaker module is connected to the cable module. It is characterized in that the cabinet body is provided with a protection chamber and a cable chamber. The protection chamber is located directly above the cable chamber. The circuit breaker module is installed in the protection chamber, and the cable module is installed in the cable chamber. The protection chamber is detachably provided with a protection door, and the cable chamber is detachably provided with a cable door;

[0006] A locking module is arranged between the cable door and the cabinet body. The locking module includes an elastic member, a trigger plate, a baffle plate, a plug-in member and a holding member. The elastic member is installed in the cable chamber. The baffle plate is connected to the top of the trigger plate and is perpendicular to the trigger plate. The baffle plate is used to block the plug-in member from entering the cable chamber. The holding member is used to force the plug-in member to have a tendency to enter the cable chamber. The cable door has a jack. The working mode of the locking module is as follows:

[0007] Assemble the cable door to the opening of the cable chamber;

[0008] The cable door pushes the trigger plate to move, so that the trigger plate presses the elastic member, and at the same time, the baffle plate moves with the trigger plate and no longer blocks the plug-in member;

[0009] The plug-in member falls into the cable chamber under the action of gravity and the holding member and is inserted into the jack to lock the cable door.

[0010] Further, the holding member includes a control board, a support, a first magnetic member, and a first electromagnet. The support is disposed in the protection chamber. One end of the control board is rotatably disposed on the support. The plug-in is installed at one end of the control board. The first magnetic member is installed between both ends of the control board. The first electromagnet is used to attract or repel the first magnetic member.

[0011] Furthermore, the cabinet body is provided with a controller, a charging module, and an energy storage member. The energy storage member is electrically connected to the controller. The disconnection module includes three mounting seats for assembling circuit breakers. The mounting seats have switch members. The charging module is disposed between the mounting seats and the energy storage member. The charging module is used to charge the energy storage member by using the current flowing through the circuit breaker. The switch member is used to send a signal to the controller when the circuit breaker in the mounting seat is disconnected. The controller is signal-connected to the first electromagnet.

[0012] Furthermore, the elastic member includes a first spring, a telescopic housing, a telescopic column, a second electromagnet, a second magnetic member, and a second spring. The telescopic column is movably disposed in the telescopic housing. The first spring is sleeved on the telescopic column. Both ends of the first spring are respectively connected to the inner wall of the cable chamber and the trigger plate. The telescopic column has a locking groove. The second electromagnet is used to magnetically attract the second magnetic member. The second spring is used to force the second magnetic member to insert into the locking groove. The second electromagnet is signal-connected to the controller.

[0013] Furthermore, the cable chamber is also provided with an electromagnetic lock member. The electromagnetic lock member is signal-connected to the controller. A magnetic attracting member is provided at the bottom of the cable door. The trigger plate is provided with a sensor. The installation method of the cable door includes the following steps:

[0014] The switch member senses that the circuit breaker is installed and sends a signal to the controller;

[0015] The controller controls the second electromagnet to be energized. The second magnetic member is magnetically attracted by the second electromagnet so that the second magnetic member disengages from the locking groove;

[0016] The controller controls the electromagnetic lock member to be energized, and then installs the bottom of the cable door to the cable chamber, and makes the magnetic attracting member contact with the electromagnetic lock member;

[0017] Install the top of the cable door into the cable chamber, and use the top of the cable door to push the trigger plate so that the baffle no longer blocks the plug-in;

[0018] The sensor is triggered and sends a signal to the controller;

[0019] The controller controls the first electromagnet to be energized. The first magnetic member is magnetically attracted by the first electromagnet to control the rotating member to rotate so that the plug-in is inserted into the jack.

[0020] Furthermore, the telescopic housing is provided with a sensor. The installation method of the cable door further includes:

[0021] The trigger plate is pushed so that the telescopic column retracts;

[0022] The telescopic column retracts to the in-place position and triggers the sensor, and the sensor sends a signal to the controller;

[0023] The controller receives the signal, and after a delay of t seconds, controls the second electromagnet to cut off the power. The second magnetic member is driven by the second spring and inserted into the lock groove of the cable door;

[0024] Wherein, t is a constant and 1 ≤ t ≤ 3.

[0025] Furthermore, the protection chamber is provided with a detector, an installation slot, a plug lock and an electromagnetic member. The protection door is provided with an installation plug block for inserting into the installation slot. The installation plug block and the installation slot are respectively provided with lock holes. The electromagnetic member is used to magnetically attract the plug lock so that the plug lock disengages from the lock hole. The electromagnetic member is signal-connected to the detector;

[0026] The detector is used to detect whether the protection chamber is in an arc extinguishing state. If so, it controls the electromagnetic member to cut off the power, so that the installation plug block is inserted into the lock hole to lock the protection door and the protection chamber.

[0027] Even further, the protection chamber is provided with a display lamp, and the controller is connected to the display lamp and the electromagnetic member through the same switch.

[0028] Even further, a plurality of relief holes are provided between the protection chamber and the cable chamber. The relief holes are used to make way for the cables; air bags are installed in the relief holes. The air bags are sleeved on the cables. The air bags are connected to an inflation device. The inflation device is used to inflate the air bags when the protection door is opened or when the protection chamber is in an arc extinguishing state, so that the air bags collide against the cables to isolate the protection chamber and the cable chamber.

[0029] Even further, the detector includes a spark detector and a door opening detector, and both the spark detector and the door opening detector are signal-connected to the inflation device;

[0030] A plurality of air bags are supplied with air by one inflation device. Each air bag is respectively provided with a pressure sensor. The pressure sensor is used to sense the pressure of the air bag on the cable. The pressure sensor is signal-connected to the inflation device.

[0031] Advantages of the present invention: By dividing the electric cabinet into a protection chamber and a cable chamber, and having only cables in the cable chamber and installing the disconnection module in the protection chamber, when repairing the present invention, it is not necessary to expose the cables, ensuring the safety of the cables. Description of the Drawings

[0032] Figure 1 is a schematic diagram of the present invention.

[0033] Figure 2 is a schematic diagram of the present invention with the protection door and the cable door hidden.

[0034] Figure 3 The structural schematic diagram of the locking module of the present invention.

[0035] Figure 4 is Figure 3 the schematic diagram in the A direction of

[0036] Figure 5 The electrical control schematic diagram of the present invention.

[0037] Figure 6 The schematic diagram of an electric cabinet in the prior art.

[0038] Reference numerals: 1 - cabinet body, 2 - circuit breaker module, 3 - cable module, 4 - protection door, 5 - cable door, 6 - locking module, 11 - protection chamber, 12 - cable chamber, 13 - controller, 14 - charging module, 15 - energy storage component, 16 - electromagnetic lock component, 17 - sensor, 19 - relief hole, 21 - mounting seat, 22 - switch component, 41 - display lamp, 61 - elastic component, 62 - trigger plate, 63 - baffle plate, 64 - plug-in component, 65 - holding component, 111 - detector, 112 - mounting slot, 113 - plug lock, 114 - electromagnetic component, 115 - spark detector, 116 - door opening detector, 192 - inflation device, 611 - first spring, 612 - telescopic shell, 613 - telescopic column, 614 - second electromagnet, 615 - second magnetic component, 616 - second spring, 617 - lock groove, 651 - control board, 652 - support, 653 - first magnetic component, 654 - first electromagnet. Detailed implementation manners

[0039] For the convenience of understanding by those skilled in the art, the present invention will be further described below in conjunction with embodiments and the accompanying drawings. The content mentioned in the implementation manners does not limit the present invention. The present invention will be described in detail below with reference to the accompanying drawings.

[0040] As Figures 1 to 5 shown, an electric cabinet that avoids opening the cable chamber during maintenance provided by the present invention includes a cabinet body 1, a circuit breaker module 2 and a cable module 3 both arranged on the cabinet body 1. The circuit breaker module 2 is connected to the cable module 3. It is characterized in that the cabinet body 1 is provided with a protection chamber 11 and a cable chamber 12. The protection chamber 11 is located directly above the cable chamber 12. The circuit breaker module 2 is installed in the protection chamber 11, and the cable module 3 is installed in the cable chamber 12. The protection chamber 11 is detachably provided with a protection door 4, and the cable chamber 12 is detachably provided with a cable door 5.

[0041] Among them, the cable module 3 includes multiple cables, preferably three.

[0042] In the present invention, the electric cabinet is divided into a protection chamber 11 and a cable chamber 12, and only cables are placed in the cable chamber 12, while the disconnection module 2 is installed in the protection chamber 11. Therefore, when the present invention is being repaired, there is no need to expose the cables, ensuring the safety of the cables.

[0043] In this embodiment, a locking module 6 is provided between the cable door 5 and the cabinet body 1. The locking module 6 includes an elastic member 61, a trigger plate 62, a baffle 63, a plug-in member 64, and a retaining member 65. The elastic member 61 is installed in the cable chamber 12. The baffle 63 is connected to the top of the trigger plate 62 and is perpendicular to the trigger plate 62. The baffle 63 is used to block the plug-in member 64 from entering the cable chamber 12, and the retaining member 65 is used to force the plug-in member 64 to have a tendency to enter the cable chamber 12. The cable door 5 has a jack. The working mode of the locking module 6 is as follows:

[0044] Assemble the cable door 5 to the opening of the cable chamber 12;

[0045] The cable door 5 pushes the trigger plate 62 to move, so that the trigger plate 62 presses the elastic member 61. At the same time, the baffle 63 moves with the trigger plate 62 and no longer blocks the plug-in member 64;

[0046] The plug-in member 64 falls into the cable chamber 12 under the action of gravity and the retaining member 65 and is inserted into the jack to lock the cable door 5.

[0047] That is, in the state where the cable door 5 is not installed, the trigger plate 62 is pushed out by the elastic member 61 so that the baffle 63 blocks directly below the plug-in member 64 to prevent the plug-in member 64 from being inserted into the cable chamber 12; when the cable door 5 is installed, the cable door 5 is used to push against the trigger plate 62, so that the baffle 63 no longer blocks the plug-in member 64. The plug-in member 64 will fall under the dual action of gravity and the retaining member 65 and be inserted into the jack of the cable door 5, thus realizing the locking of the cable door 5; when it is necessary to open the cable door 5, the protection door 4 must be opened first, and the plug-in member 64 is lifted in the protection chamber 11 to be pulled out of the jack to unlock the cable door 5, effectively ensuring that the cable door 5 cannot be opened in the non-maintenance state.

[0048] Since the jack is provided in the cable door 5, that is, the position of the jack does not affect the cable door 5 from isolating the cable chamber 12 from the outside world. Therefore, in the state where both the protection door 4 and the cable door 5 are assembled, the interior of the present invention can be maintained in an inflated state.

[0049] In this embodiment, the retaining member 65 includes a control board 651, a support 652, a first magnetic member 653, and a first electromagnet 654. The support 652 is provided in the protection chamber 11. One end of the control board 651 is rotatably provided on the support 652. The plug-in member 64 is installed at one end of the control board 651. The first magnetic member 653 is installed between both ends of the control board 651. The first electromagnet 654 is used to attract or repel the first magnetic member 653.

[0050] Specifically, the cabinet body 1 is provided with a controller 13, a charging module 14 and an energy storage component 15. The energy storage component 15 is electrically connected to the controller 13. The disconnection module 2 includes three mounting seats 21 for assembling circuit breakers. The mounting seats 21 are provided with switching elements 22. The charging module 14 is arranged between the mounting seats 21 and the energy storage component 15. The charging module 14 is used to charge the energy storage component 15 by using the current flowing through the circuit breaker. The switching element 22 is used to send a signal to the controller 13 when the circuit breaker in the mounting seat 21 is disconnected. The controller 13 is signal-connected to the first electromagnet 654.

[0051] That is, when the circuit breaker in the mounting seat 21 needs to be repaired, the circuit breaker must be powered off. After the circuit breaker is cut off, the switching element 22 must be in the off state. At this time, the controller 13 switches to supply power from the energy storage component 15. The first electromagnet 654 is controlled by the controller 13 to be powered off because the switching element 22 is off. Therefore, the staff can control the plug-in 64 to lift to open the cable door 5 and repair the cable chamber 12. When the circuit breaker is not in the cut-off state, the controller 13 always keeps the first electromagnet 654 in the energized state, so that the plug-in 64 remains inserted into the jack to lock the cable door 5. Through the setting of the above structure, it is ensured that the cable chamber 12 can be opened for maintenance only when the circuit breaker is in the cut-off state, ensuring the safety of the cable.

[0052] The charging module 14 described in this embodiment is a conventional step-down circuit. The energy storage component 15 can be a conventional battery, energy storage capacitor, etc. As long as the two cooperate, it can ensure that the controller 13 can still work normally when the circuit breaker is in the cut-off state.

[0053] Specifically, the elastic member 61 includes a first spring 611, a telescopic shell 612, a telescopic column 613, a second electromagnet 614, a second magnetic member 615 and a second spring 616. The telescopic column 613 is movably arranged in the telescopic shell 612. The first spring 611 is sleeved on the telescopic column 613. The two ends of the first spring 611 are respectively connected to the inner wall of the cable chamber 12 and the trigger plate 62. The telescopic column 613 has a locking groove. The second electromagnet 614 is used to magnetically attract the second magnetic member 615. The second spring 616 is used to force the second magnetic member 615 to insert into the locking groove. The second electromagnet 614 is signal-connected to the controller 13.

[0054] That is, in the locked state, the first spring 611 is in the reset state and forces the telescopic column 613 to have a tendency to extend out of the telescopic housing 612. The trigger plate 62 is reset by the way of ejecting the telescopic column 613. At the same time, the second magnetic member 615 is driven by the second spring 616 to insert into the locking groove to lock the telescopic column 613. At this time, the cable door 5 cannot be installed. After the circuit breaker is installed, the second electromagnet 614 can be energized to make the second magnetic member 615 withdraw from the locking groove under the magnetic attraction of the second electromagnet 614, so that the staff can install the cable door 5 smoothly. In this way, the inspection effect of the circuit breaker installation can be cooperated with the staff to ensure that the cable chamber 12 is covered only when the circuit breaker is installed and the cable is energized smoothly.

[0055] In this embodiment, the completion of the installation of the circuit breaker means that the circuit breaker is installed and connected to the cable, and the power can be connected smoothly, so that the switch member 22 has current passing through and sends a signal to the controller 13, and then the unlocking of the elastic member 61 can be realized.

[0056] Specifically, an electromagnetic lock member 16 is further provided in the cable chamber 12. The electromagnetic lock member 16 is signal-connected to the controller 13. A magnetic attraction member is provided at the bottom of the cable door 5. A sensor is provided on the trigger plate 62. The installation method of the cable door 5 includes the following steps:

[0057] The switch member 22 senses that the circuit breaker is installed and sends a signal to the controller 13;

[0058] The controller 13 controls the second electromagnet 614 to be energized, and the second magnetic member 615 is magnetically attracted by the second electromagnet 614 so that the second magnetic member 615 disengages from the locking groove;

[0059] The controller 13 controls the electromagnetic lock member 16 to be energized, and then the bottom of the cable door 5 is installed into the cable chamber 12, and the magnetic attraction member is used to contact the electromagnetic lock member 16;

[0060] The top of the cable door 5 is inserted into the cable chamber 12, and the top of the cable door 5 is used to push the trigger plate 62 so that the baffle 63 no longer blocks the plug-in member 64;

[0061] The sensor is triggered and sends a signal to the controller 13;

[0062] The controller 13 controls the first electromagnet 654 to be energized, and the first magnetic member 653 is magnetically attracted by the first electromagnet 654 to control the rotation of the rotating member, so that the plug-in member 64 is inserted into the jack.

[0063] The installation between the cable chamber 12 and the cable door 5 is achieved not only through the locking module 6 located above, but also through the electromagnetic lock 16 located below. The electromagnetic lock 16 is preferably of a groove structure, which magnetically attracts the magnetic member inserted into the electromagnetic lock 16 to fix the cable door 5.

[0064] As can be seen from the above, in this embodiment, the cable door 5 can be installed only after the circuit breaker is installed and powered on smoothly with the cable. And through the electronic and mechanical cooperation method, multiple locks for the cable door 5 are realized to prevent the cable door 5 from being opened without reason.

[0065] Preferably, the telescopic housing 612 is provided with a sensor 18; the installation method of the cable door 5 further includes:

[0066] The trigger plate 62 is pushed to make the telescopic column 613 retract;

[0067] When the telescopic column 613 retracts in place to trigger the sensor 18, the sensor 18 sends a signal to the controller 13;

[0068] After receiving the signal, the controller 13 controls the second electromagnet 614 to cut off the power after a delay of t seconds, and the second magnetic member 615 is inserted into the lock groove of the cable door 5 under the drive of the second spring 616;

[0069] Wherein, t is a constant and 1≤t≤3.

[0070] That is, when the trigger plate 62 is pushed to force the telescopic column 613 in place, it indicates that the cable door 5 is in the assembled state. Therefore, after the telescopic column 613 is in place, the controller 13 will delay the action of cutting off the power of the second electromagnet 614, so that the second magnetic member 615 is inserted into the lock groove of the cable door 5 under the drive of the second spring 616, achieving the effect of secondary utilization of the second magnetic member 615. The function of the delay t is to ensure that the cable door 5 is installed stably before performing the action of cutting off the power of the second electromagnet 614 to ensure safety.

[0071] The first magnetic member 653, the second magnetic member 615, and the magnetic member described in this embodiment are all permanent magnets or magnetizable metal parts such as iron and copper.

[0072] In this embodiment, the protection chamber 11 is provided with a detector 111, an installation slot 112, a plug lock 113, and an electromagnetic member 114. The protection door 4 is provided with an installation plug for inserting into the installation slot 112. The installation plug and the installation slot 112 are respectively provided with lock holes. The electromagnetic member 114 is used to magnetically attract the plug lock 113 to make the plug lock 113 disengage from the lock hole, and the electromagnetic member 114 is signal-connected to the detector 111;

[0073] The detector 111 is used to detect whether the arc extinguishing state exists in the protection chamber 11. If so, it controls the electromagnetic component 114 to cut off the power, so that the installation plug block is inserted into the lock hole to lock the protection door 4 and the protection chamber 11.

[0074] When the protection door 4 is installed on the protection chamber 11, the installation plug block is inserted into the installation slot 112 so that the lock holes of the two communicate with each other and are located on the straight line where the electromagnetic component 114 drives the bolt 113 to move.

[0075] The main function of the circuit breaker is to extinguish the arc when the arc is generated, and it is dangerous when the arc is generated. Therefore, in the arc extinguishing state, the present invention controls the electromagnetic component 114 to cut off the power, so that the bolt 113 is inserted into the jack to lock between the protection chamber 11 and the protection door 4, and to prevent the protection door 4 from being opened in the arc extinguishing state. And if there is an arc that cannot be extinguished by the circuit breaker, at this time, the temperature in the protection chamber 11 is relatively high, and part of the bolt 113 will melt and cannot be located in the two lock holes at the same time, allowing the staff to open the protection door 4 for fire extinguishing treatment.

[0076] In this embodiment, the protection chamber 11 is provided with a display lamp 41, and the controller 13 is connected to the display lamp 41 and the electromagnetic component 114 through the same switch. When the display lamp 41 is on, it proves that the protection door 4 can be opened. When in the arc extinguishing state, both the electromagnet and the display lamp 41 are in the power-off state, and the display lamp 41 goes out to inform the staff that the protection door 4 cannot be opened temporarily.

[0077] Specifically, a plurality of relief holes 19 are provided between the protection chamber 11 and the cable chamber 12. The relief holes 19 are used to make way for the cable; an airbag is installed in the relief hole 19. The airbag is sleeved on the cable, and the airbag is connected to an inflation device 192. The inflation device 192 is used to inflate the airbag when the protection door 4 is opened or when the arc extinguishing state exists in the protection chamber 11, so that the airbag collides against the cable to isolate the protection chamber 11 and the cable chamber 12.

[0078] When the protection door 4 is opened, the protection chamber 11 must be connected to the outside. At this time, in order to prevent the gas inside the cable chamber 12 from interacting with the outside, the present invention uses the inflation device 192 (such as an air pump) to inflate the airbag, and uses the way that the airbag tightly contacts the cable to avoid or reduce gas exchange, ensuring the stability inside the cable chamber 12.

[0079] The cable enters the protection chamber 11 through the relief hole 19 to connect with the circuit breaker. The use of the airbag can effectively prevent the cable from being squeezed and damaged, thus ensuring the safety of the cable.

[0080] Specifically, the detector 111 includes a spark detector 115 and a door opening detector 116. Both the spark detector 115 and the door opening detector 116 are signal-connected to the inflation device 192;

[0081] Multiple airbags are supplied with gas by an inflation device 192. Each airbag is respectively provided with a pressure sensor for sensing the pressure exerted on the airbag by the cable. The pressure sensor is in signal connection with the inflation device 192.

[0082] Only one inflation device 192 is provided, which can effectively reduce the structure of the present invention and avoid frequent failures caused by a bloated structure. Due to the characteristics of the airbag, it is necessary to ensure that the airbag with the minimum pressure value also meets the requirements before stopping inflation, which can effectively avoid air leakage. At the same time, the softness of the airbag also ensures that the cable will not be damaged due to excessive internal air pressure in the airbag.

[0083] The above is only a preferred embodiment of the present invention, and it is not intended to limit the present invention in any form. Although the present invention is disclosed above with a preferred embodiment, it is not intended to limit the present invention. Any person skilled in the art, without departing from the scope of the technical solution of the present invention, when making some changes or modifications using the above-disclosed technical content into equivalent embodiments of equivalent changes, but as long as it does not depart from the content of the technical solution of the present invention, any simple modification, equivalent change and modification made to the above embodiments according to the technical means of the present invention shall fall within the scope of the technical solution of the present invention.

Claims

1. An electrical cabinet that avoids opening the cable chamber during maintenance, comprising a cabinet body, a circuit breaker module and a cable module both arranged in the cabinet body, the circuit breaker module is connected to the cable module, and is characterized in that, The cabinet body is provided with a protection chamber and a cable chamber. The protection chamber is located directly above the cable chamber. The circuit breaker module is installed in the protection chamber, and the cable module is installed in the cable chamber. The protection chamber is detachably provided with a protection door, and the cable chamber is detachably provided with a cable door. A locking module is arranged between the cable door and the cabinet body. The locking module includes an elastic member, a trigger plate, a baffle plate, a plug-in member, and a retaining member. The elastic member is installed in the cable chamber. The baffle plate is connected to the top of the trigger plate and is perpendicular to the trigger plate. The baffle plate is used to block the plug-in member from entering the cable chamber. The retaining member is used to force the plug-in member to have a tendency to enter the cable chamber. The cable door has a jack. The working mode of the locking module is as follows: Assemble the cable door to the opening of the cable chamber. The cable door pushes the trigger plate to move, so that the trigger plate presses the elastic member. At the same time, the baffle plate moves with the trigger plate and no longer blocks the plug-in member. The plug-in member falls into the cable chamber under the action of gravity and the retaining member and is inserted into the jack to lock the cable door. The retaining member includes a control board, a support, a first magnetic member, and a first electromagnet. The support is arranged in the protection chamber. One end of the control board is rotatably arranged on the support. The plug-in member is installed at one end of the control board. The first magnetic member is installed between the two ends of the control board. The first electromagnet is used to attract or repel the first magnetic member. The elastic member includes a first spring, a telescopic shell, a telescopic column, a second electromagnet, a second magnetic member, and a second spring. The telescopic column is movably arranged in the telescopic shell. The first spring is sleeved on the telescopic column. The two ends of the first spring are respectively connected to the inner wall of the cable chamber and the trigger plate. The telescopic column has a locking groove. The second electromagnet is used to magnetically attract the second magnetic member. The second spring is used to force the second magnetic member to insert into the locking groove. The second electromagnet is signal-connected to the controller. The cable chamber is also provided with an electromagnetic lock member, which is signal-connected to the controller. A magnetic attracting member is arranged at the bottom of the cable door. The trigger plate is provided with a sensor. The installation method of the cable door includes the following steps: The switch member senses that the circuit breaker is installed and sends a signal to the controller. The controller controls the second electromagnet to be energized, and the second magnetic member is magnetically attracted by the second electromagnet so that the second magnetic member disengages from the locking groove. The controller controls the electromagnetic lock member to be energized, and then installs the bottom of the cable door to the cable chamber, and uses the magnetic attracting member to contact the electromagnetic lock member. Install the top of the cable door into the cable chamber, and use the top of the cable door to push the trigger plate so that the baffle plate no longer blocks the plug-in member. The sensor is triggered and sends a signal to the controller. The controller controls the first electromagnet to be energized, and the first magnetic member is magnetically attracted by the first electromagnet to control the rotating member to rotate so that the plug-in member is inserted into the jack.

2. The electric cabinet that avoids opening the cable chamber during maintenance according to claim 1, wherein The cabinet body is provided with a controller, a charging module, and an energy storage member. The energy storage member is electrically connected to the controller. The circuit breaker module includes three mounting seats for assembling a circuit breaker. The mounting seat has a switch member. The charging module is arranged between the mounting seat and the energy storage member. The charging module is used to charge the energy storage member by using the current flowing through the circuit breaker. The switch member is used to send a signal to the controller when the circuit breaker in the mounting seat is disconnected. The controller is signal-connected to the first electromagnet.

3. The electric cabinet that avoids opening the cable chamber during maintenance according to claim 1, characterized in that, The telescopic shell is provided with a sensor. The installation method of the cable door also includes: The trigger plate is pushed so that the telescopic column retracts. The telescopic column retracts in place and triggers the sensor, and the sensor sends a signal to the controller. The controller receives a signal and, after a delay of t seconds, controls the second electromagnet to cut off power. The second magnetic member is driven by the second spring and inserted into the lock slot of the cable door; wherein, t is a constant and 1 ≤ t ≤ 3.

4. The electric cabinet that avoids opening the cable chamber during maintenance according to claim 1, wherein The protection chamber is provided with a detector, an installation slot, a plug lock, and an electromagnetic member. The protection door is provided with an installation plug block for inserting into the installation slot. The installation plug block and the installation slot are respectively provided with lock holes. The electromagnetic member is used to magnetically attract the plug lock so that the plug lock disengages from the lock hole. The electromagnetic member is signal-connected to the detector; The detector is used to detect whether the protection chamber is in an arc extinguishing state. If so, it controls the electromagnetic member to cut off power so that the installation plug block is inserted into the lock hole to lock the protection door and the protection chamber.

5. The electric cabinet that avoids opening the cable chamber during maintenance according to claim 4, characterized in that The protection chamber is provided with a display lamp. The controller is connected to the display lamp and the electromagnetic member through the same switch.

6. The electric cabinet that avoids opening the cable chamber during maintenance according to claim 4, characterized in that A plurality of relief holes are provided between the protection chamber and the cable chamber. The relief holes are used to provide clearance for the cables; an airbag is installed in the relief hole. The airbag is sleeved on the cable. The airbag is connected to an inflation device. The inflation device is used to inflate the airbag when the protection door is opened or when the protection chamber is in an arc extinguishing state, so that the airbag collides against and abuts against the cable to achieve isolation between the protection chamber and the cable chamber.

7. The electric cabinet that avoids opening the cable chamber during maintenance according to claim 6, wherein The detector includes a spark detector and a door opening detector. Both the spark detector and the door opening detector are signal-connected to the inflation device; A plurality of airbags are supplied with gas by one inflation device. Each airbag is respectively provided with a pressure sensor. The pressure sensor is used to sense the pressure exerted on the airbag by the cable. The pressure sensor is signal-connected to the inflation device.

Images