Electric cabinet capable of preventing cable chamber from being opened during maintenance

Abstract

The invention relates to the technical field of power distribution cabinets, in particular to an electric cabinet capable of preventing a cable chamber from being opened during maintenance, which comprises a cabinet body, a circuit break module and a cable module, the circuit break module and the cable module are arranged on the cabinet body and are connected, and is characterized in that the cabinet body is provided with a protection chamber and a cable chamber, the protection chamber is positioned right above the cable chamber, and the cable chamber is positioned right above the protection chamber. The circuit break 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. The electric cabinet is divided into the protection chamber and the cable chamber, only cables are arranged in the cable chamber, and the circuit break module is arranged in the protection chamber, so that the cables do not need to be exposed when the electric cabinet is maintained, and the safety of the cables is ensured.

Description

Technical Field

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

[0002] In high-voltage or low-voltage distribution cabinets, circuit breakers are usually used to connect cables so that power can be cut off for protection when an abnormality occurs in the circuit. Figure 6 As shown, the inflatable cabinet is a type of electrical cabinet, which usually installs the circuit breaker and the cable in the same space, resulting in the cable having to be exposed to the outside when the space is opened for maintenance of the circuit breaker, which is obviously not good for the protection and use of the cable. Summary of the invention

[0003] The present invention aims at solving the problems in the prior art and provides an electric cabinet which avoids opening the cable chamber during maintenance, and the cables are independently located in a space through structural modification.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0005] The present invention provides an electric 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, wherein 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, wherein 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 provided between the cable door and the cabinet. The locking module includes an elastic member, a trigger plate, a baffle, a plug-in and a retaining member. The elastic member is installed in the cable chamber. The baffle is connected to the top of the trigger plate and is vertically arranged with the trigger plate. The baffle is used to stop the plug-in from entering the cable chamber. The retaining member is used to force the plug-in 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] Fit the cable door to the opening of the cable compartment;

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

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

[0010] Furthermore, the retaining member includes a control panel, a support, a first magnetic member and a first electromagnet. The support is arranged in a protection chamber, one end of the control panel is rotatably arranged on the support, the plug-in is installed at one end of the control panel, the first magnetic member is installed between the two ends of the control panel, and the first electromagnet is used to attract or repel the first magnetic member.

[0011] Furthermore, the cabinet is provided with a controller, a charging module and an energy storage component, and the energy storage component is electrically connected to the controller; the circuit breaker module includes three mounting bases for assembling the circuit breaker, the mounting base has a switch component, the charging module is arranged between the mounting base and the energy storage component, the charging module is used to charge the energy storage component using the current flowing through the circuit breaker, the switch component is used to send a signal to the controller when the circuit breaker in the mounting base is disconnected, and the controller is connected to the first electromagnet signal.

[0012] Furthermore, 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 on 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, and the second electromagnet is connected to the controller signal.

[0013] Furthermore, the cable chamber is also provided with an electromagnetic lock, which is connected to the controller signal, and a magnetic attraction is provided at the bottom of the cable door; the trigger plate is provided with a sensor, and the installation method of the cable door includes the following steps:

[0014] The switch piece senses that the circuit breaker installation is complete and sends a signal to the controller;

[0015] The controller controls the second electromagnet to be energized, so that the second electromagnet magnetically attracts the second magnetic member so that the second magnetic member is separated from the lock slot;

[0016] The controller controls the electromagnetic lock to be energized, and then the bottom of the cable door is installed to the cable room, and the magnetic attraction part is used to contact the electromagnetic lock;

[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, and the first electromagnet magnetically attracts the first magnetic member to control the rotation of the rotating member, so that the plug-in is inserted into the socket.

[0020] Furthermore, the telescopic shell is provided with a sensor; the installation method of the cable door also includes:

[0021] The trigger plate is pushed to cause the telescopic column to retreat;

[0022] The telescopic column retreats to its proper position and triggers the sensor, which sends a signal to the controller;

[0023] The controller receives the signal and controls the second electromagnet to be powered off after a delay of t, and the second magnetic member is inserted into the lock slot of the cable door under the drive of the second spring;

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

[0025] Furthermore, the protection chamber is provided with a detector, an installation slot, a latch and an electromagnetic component, the protection door is provided with an installation plug for inserting into the installation slot, the installation plug and the installation slot are respectively provided with a lock hole, the electromagnetic component is used to magnetically attract the latch to make the latch disengage from the lock hole, and the electromagnetic component is connected with the detector signal;

[0026] The detector is used to detect whether the protection chamber is in an arc extinguishing state. If so, the electromagnetic component is controlled to be powered off so that the installation plug is inserted into the lock hole to lock the protection door and the protection chamber.

[0027] Furthermore, the protection chamber is provided with a display light, and the controller is connected to the display light and the electromagnetic component through the same switch.

[0028] Furthermore, a plurality of clearance holes are provided between the protection chamber and the cable chamber, and the clearance holes are used to make way for the cables; an airbag is installed in the clearance hole, and the airbag is sleeved on the cable. The airbag is connected to an inflation device, and the inflation device is used to inflate the airbag when the protection door is opened or the protection chamber is in an arc extinguishing state, so that the airbag collides with the cable to achieve isolation between the protection chamber and the cable chamber.

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

[0030] A plurality of airbags are supplied with air through an inflator, and each airbag is provided with a pressure sensor respectively. The pressure sensor is used to sense the pressure exerted by the cable on the airbag, and the pressure sensor is connected with the signal of the inflator.

[0031] Beneficial effects of the present invention: The present invention divides the electric cabinet into a protection room and a cable room, and only the cables are placed in the cable room, and the circuit breaker module is installed in the protection room. Therefore, when the present invention is repaired, the cables do not need to be exposed, thereby ensuring the safety of the cables. BRIEF DESCRIPTION OF THE DRAWINGS

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

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

[0034] Figure 3 It is a structural schematic diagram of the locking module of the present invention.

[0035] Figure 4 for Figure 3 Schematic diagram of direction A.

[0036] Figure 5 It is the electric control principle diagram of the present invention.

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

[0038] Figure numerals: 1-cabinet, 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-clearance hole, 21-mounting seat, 22-switch component, 41-display light, 61-elastic component, 62-trigger plate, 63-baffle, 64-plug-in, 65-retaining component, 1 11—detector, 112—installation slot, 113—mortise lock, 114—electromagnetic member, 115—spark detector, 116—door opening detector, 192—inflating device, 611—first spring, 612—telescopic shell, 613—telescopic column, 614—second electromagnet, 615—second magnetic member, 616—second spring, 617—lock slot, 651—control panel, 652—support, 653—first magnetic member, 654—first electromagnet. DETAILED DESCRIPTION

[0039] In order to facilitate the understanding of those skilled in the art, the present invention is further described below in conjunction with the embodiments and drawings, and the contents mentioned in the embodiments are not intended to limit the present invention. The present invention is described in detail below in conjunction with the drawings.

[0040] like Figures 1 to 5 As shown, the present invention provides an electric cabinet that avoids opening the cable chamber during maintenance, comprising a cabinet body 1, a circuit breaker module 2 and a cable module 3 both arranged in the cabinet body 1, the circuit breaker module 2 is connected to the cable module 3, and 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] The cable module 3 includes a plurality of cables, preferably three cables.

[0042] The present invention divides the electric cabinet into a protection chamber 11 and a cable chamber 12, and only the cables are placed in the cable chamber 12, and the circuit breaker module 2 is installed in the protection chamber 11. Therefore, when the present invention is repaired, the cables do not need to be exposed, thereby ensuring the safety of the cables.

[0043] In this embodiment, a locking module 6 is provided between the cable door 5 and the cabinet 1. The locking module 6 includes an elastic member 61, a trigger plate 62, a baffle 63, a plug-in 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 vertically arranged with the trigger plate 62. The baffle 63 is used to stop the plug-in 64 from entering the cable chamber 12. The retaining member 65 is used to force the plug-in 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, and the baffle plate 63 moves with the trigger plate 62 and no longer stops the plug-in 64;

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

[0047] That is, when the cable door 5 is not installed, the trigger plate 62 is pushed out by the elastic member 61 so that the baffle 63 is blocked directly below the plug-in 64 to prevent the plug-in 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 stops the plug-in 64, and the plug-in 64 will fall into the socket for inserting the cable door 5 under the dual effects of gravity and the retaining member 65, thereby locking the cable door 5; and when the cable door 5 needs to be opened, the protection door 4 must be opened first, and the plug-in 64 must be lifted in the protection chamber 11 to be pulled out of the socket, so as to unlock the cable door 5, effectively ensuring that the cable door 5 cannot be opened when not in maintenance state.

[0048] Since the jack is arranged in the cable door 5, that is, the position of the jack does not affect the cable door 5 to isolate the cable chamber 12 from the outside, the interior of the present invention can be kept in an inflated state when the protection door 4 and the cable door 5 are assembled.

[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 arranged in the protection chamber 11, one end of the control board 651 is rotatably arranged on the support 652, the plug-in 64 is installed at one end of the control board 651, the first magnetic member 653 is installed between the two ends of the control board 651, and the first electromagnet 654 is used to attract or repel the first magnetic member 653.

[0050] Specifically, the cabinet 1 is provided with a controller 13, a charging module 14 and an energy storage component 15, and the energy storage component 15 is electrically connected to the controller 13; the circuit breaker module 2 includes three mounting bases 21 for assembling the circuit breaker, the mounting base 21 has a switch component 22, the charging module 14 is arranged between the mounting base 21 and the energy storage component 15, the charging module 14 is used to charge the energy storage component 15 using the current flowing through the circuit breaker, and the switch component 22 is used to send a signal to the controller 13 when the circuit breaker in the mounting base 21 is disconnected, and the controller 13 is connected to the first electromagnet 654 signal.

[0051] That is, when the circuit breaker in the mounting seat 21 needs to be repaired, the circuit breaker must be powered off, and after the circuit breaker is cut off, the switch 22 must be in the off state. At this time, the controller 13 switches to the energy storage component 15 for power supply. The first electromagnet 654 is controlled by the controller 13 to power off because the switch 22 is turned off. Therefore, the staff can control the plug 64 to lift up 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 64 remains inserted into the jack and the cable door 5 is locked. Through the above-mentioned structural setting, it is ensured that the cable chamber 12 can be opened for maintenance and repair only when the circuit breaker is cut off, thereby ensuring the safety of the cable.

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

[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 on 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 connected to the controller 13 signal.

[0054] That is, in the locked state, the first spring 611 is in a reset state and forces the telescopic column 613 to have a movement tendency to extend out of the telescopic shell 612, and the trigger plate 62 is reset by the telescopic column 613 being pushed out, and the telescopic column 613 is locked by the second spring 616 driving the second magnetic member 615 to be inserted into the lock slot, and the cable door 5 cannot be installed at this time; and when the circuit breaker is installed, the second electromagnet 614 can be energized to make the second magnetic member 615 withdraw from the lock slot under the magnetic attraction of the second electromagnet 614, so that the staff can smoothly install the cable door 5. In this way, the inspection effect of the circuit breaker installation can be coordinated with the staff to ensure that the cable chamber 12 is closed only when the circuit breaker is installed and the cable is smoothly energized.

[0055] The installation of the circuit breaker described in this embodiment is completed, which means that the circuit breaker is installed and connected to the cable, and can be smoothly powered, so that the switch element 22 can pass current and send a signal to the controller 13, so that the elastic element 61 can be unlocked.

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

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

[0058] The controller 13 controls the second electromagnet 614 to be energized, and the second electromagnet 614 magnetically attracts the second magnetic member 615 so that the second magnetic member 615 is separated from the locking slot;

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

[0060] Install the top of the cable door 5 into the cable chamber 12, and use the top of the cable door 5 to push the trigger plate 62 so that the baffle 63 no longer blocks the plug-in 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 electromagnet 654 magnetically attracts the first magnetic member 653 to control the rotation of the rotating member, so that the plug-in 64 is inserted into the socket.

[0063] The installation between the cable chamber 12 and the cable door 5 is not only through the locking module 6 located at the top, but also through the electromagnetic lock 16 located at the bottom. The electromagnetic lock 16 is preferably a groove-type structure, which can achieve magnetic attraction of the magnetic attraction part inserted into the electromagnetic lock 16, thereby achieving the effect of fixing 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 the cable is successfully energized. The multiple locking of the cable door 5 is achieved by electronically cooperating with mechanical means to prevent the cable door 5 from being opened without reason.

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

[0066] The trigger plate 62 is pushed to cause the telescopic column 613 to retreat;

[0067] The telescopic column 613 retreats to its proper position and triggers the sensor 18 , which sends a signal to the controller 13 ;

[0068] The controller 13 receives the signal and controls the second electromagnet 614 to be powered off after a delay of t, and the second magnetic member 615 is inserted into the lock slot 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 and the telescopic column 613 is forced into position, it indicates that the cable door 5 is in the assembled state. Therefore, the controller 13 will delay the execution of the second electromagnet 614 power-off action after the telescopic column 613 is in position, so that the second magnetic member 615 is inserted into the lock slot of the cable door 5 under the drive of the second spring 616, thereby achieving the effect of secondary utilization of the second magnetic member 615. The purpose of the delay t is to ensure that the cable door 5 is stably installed before the second electromagnet 614 power-off action is executed to ensure safety.

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

[0072] In this embodiment, the protection chamber 11 is provided with a detector 111, an installation slot 112, a latch 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 latch 113 so that the latch 113 is separated from the lock hole, and the electromagnetic member 114 is connected to the detector 111 by signal;

[0073] The detector 111 is used to detect whether the protection chamber 11 is in an arc extinguishing state. If so, the electromagnetic component 114 is controlled to be de-energized so that the installation plug 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 to the protection chamber 11 , the installation plug is inserted into the installation slot 112 so that the lock holes of the two are connected to each other and are located on the straight line driven by the electromagnetic member 114 to move the latch 113 .

[0075] The function of the circuit breaker is mainly to extinguish the arc when an arc is generated, and the arc is dangerous when it is generated. Therefore, the present invention controls the electromagnetic component 114 to cut off the power in the arc extinguishing state, so that the latch 113 can be inserted into the jack to lock the protection chamber 11 and the protection door 4, and prevent the protection door 4 from being opened in the arc extinguishing state. If an arc that cannot be extinguished by the circuit breaker occurs, the temperature in the protection chamber 11 is high at this time, and the latch 113 will be partially melted and cannot be located in the two lock holes at the same time, so that the staff can open the protection door 4 to extinguish the fire.

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

[0077] Specifically, a plurality of clearance holes 19 are provided between the protection chamber 11 and the cable chamber 12, and the clearance holes 19 are used to make way for the cables; an airbag is installed in the clearance hole 19, and the airbag is sleeved on the cable. The airbag is connected to an inflation device 192, and the inflation device 192 is used to inflate the airbag when the protection door 4 is opened or the protection chamber 11 is in an arc extinguishing state, so that the airbag collides with the cable to achieve isolation between 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 world. At this time, in order to prevent the gas inside the cable chamber 12 from interacting with the outside world, the present invention adopts an inflation device 192 (such as an air pump) to inflate the airbag, and uses the close contact between the airbag and the cable to avoid or reduce gas exchange, thereby ensuring the stability inside the cable chamber 12.

[0079] The cable enters the protection chamber 11 through the clearance hole 19 to be connected with the circuit breaker. The airbag method can effectively prevent the cable from being squeezed and damaged, thereby ensuring the safety of the cable.

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

[0081] Multiple airbags are supplied with air through an inflation device 192 , and each airbag is provided with a pressure sensor, which is used to sense the pressure of the airbag exerted by the cable. The pressure sensor is connected to the inflation device 192 by signal.

[0082] Only one inflation device 192 is provided, which can effectively reduce the structure of the present invention and avoid frequent failures caused by bloated structure. Due to the characteristics of the airbag, it is necessary to ensure that the airbag with the smallest pressure value also reaches the required value before stopping inflation, which can effectively avoid air leakage. At the same time, the softness of the airbag also prevents the cable from being damaged due to excessive air pressure inside the airbag.

[0083] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention is disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technician familiar with the profession can make some changes or modifications to equivalent embodiments of equivalent changes by using the technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent changes and modifications made to the above embodiments according to the technology of the present invention are within the scope of the technical solution of the present invention without departing from the content of the technical solution of the present invention.

Claims

1. An electric cabinet that avoids opening the cable room during maintenance, comprising a cabinet body, a circuit breaker module and a cable module both arranged in the cabinet body, wherein the circuit breaker module is connected to the cable module, and is characterized in that: The cabinet 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 provided between the cable door and the cabinet. The locking module includes an elastic member, a trigger plate, a baffle, a plug-in and a retaining member. The elastic member is installed in the cable chamber. The baffle is connected to the top of the trigger plate and is vertically arranged with the trigger plate. The baffle is used to stop the plug-in from entering the cable chamber. The retaining member is used to force the plug-in 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: Fit the cable door to the opening of the cable compartment; The cable door pushes the trigger plate to move, so that the trigger plate presses the elastic member, and the baffle moves with the trigger plate and no longer stops the plug-in; The plug-in unit falls into the cable chamber under the action of gravity and the retaining member and is inserted into the insertion hole to lock the cable door.

2. The electric cabinet for avoiding opening the cable room during maintenance according to claim 1, characterized in that: The retaining member includes a control panel, a support, a first magnetic member and a first electromagnet. The support is arranged in a protection chamber, one end of the control panel is rotatably arranged on the support, the plug-in is installed at one end of the control panel, the first magnetic member is installed between the two ends of the control panel, and the first electromagnet is used to attract or repel the first magnetic member.

3. The electric cabinet for avoiding opening the cable room during maintenance according to claim 2, characterized in that: The cabinet is provided with a controller, a charging module and an energy storage component, and the energy storage component is electrically connected to the controller; the circuit breaker module includes three mounting bases for assembling the circuit breaker, and the mounting base has a switch component. The charging module is arranged between the mounting base and the energy storage component, and the charging module is used to charge the energy storage component using the current flowing through the circuit breaker. The switch component is used to send a signal to the controller when the circuit breaker in the mounting base is disconnected, and the controller is connected to the first electromagnet signal.

4. The electric cabinet for avoiding opening the cable room during maintenance according to claim 3, characterized in that: 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 on 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 connected to the controller signal.

5. The electric cabinet for avoiding opening the cable room during maintenance according to claim 4, characterized in that: The cable chamber is also provided with an electromagnetic lock, which is connected to the controller signal. A magnetic attraction 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: The switch piece senses that the circuit breaker installation is complete and sends a signal to the controller; The controller controls the second electromagnet to be energized, so that the second electromagnet magnetically attracts the second magnetic member so that the second magnetic member is separated from the locking slot; The controller controls the electromagnetic lock to be energized, and then the bottom of the cable door is installed to the cable room, and the magnetic attraction part is used to contact the electromagnetic lock; 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; The sensor is triggered and sends a signal to the controller; The controller controls the first electromagnet to be energized, and the first electromagnet magnetically attracts the first magnetic member to control the rotation of the rotating member, so that the plug-in is inserted into the socket.

6. The electric cabinet for avoiding opening the cable room during maintenance according to claim 5, 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 to cause the telescopic column to retreat; The telescopic column retreats to its proper position and triggers the sensor, which sends a signal to the controller; The controller receives the signal and controls the second electromagnet to be powered off after a delay of t, and the second magnetic member is inserted into the lock slot of the cable door under the drive of the second spring; Wherein, t is a constant and 1≤t≤3.

7. The electric cabinet for avoiding opening the cable room during maintenance according to claim 1, characterized in that: The protection chamber is provided with a detector, an installation slot, a latch and an electromagnetic component, the protection door is provided with an installation plug for inserting into the installation slot, the installation plug and the installation slot are respectively provided with a lock hole, the electromagnetic component is used to magnetically attract the latch to make the latch disengage from the lock hole, and the electromagnetic component is connected with the detector signal; The detector is used to detect whether the protection chamber is in an arc extinguishing state. If so, the electromagnetic component is controlled to be powered off so that the installation plug is inserted into the lock hole to lock the protection door and the protection chamber.

8. The electric cabinet for avoiding opening the cable room during maintenance according to claim 7, characterized in that: The protection chamber is provided with a display light, and the controller is connected to the display light and the electromagnetic component through the same switch.

9. The electric cabinet for avoiding opening the cable room during maintenance according to claim 7, characterized in that: A plurality of clearance holes are arranged between the protection chamber and the cable chamber, and the clearance holes are used to make way for the cables; an airbag is installed in the clearance hole, and the airbag is sleeved on the cable. The airbag is connected to an inflation device, and the inflation device is used to inflate the airbag when the protection door is opened or the protection chamber is in an arc extinguishing state, so that the airbag collides with the cable to achieve isolation between the protection chamber and the cable chamber.

10. The electric cabinet for avoiding opening the cable room during maintenance according to claim 9, characterized in that: The detectors include a spark detector and a door opening detector, both of which are connected to the inflation device signal; A plurality of airbags are supplied with air through an inflator, and each airbag is provided with a pressure sensor respectively. The pressure sensor is used to sense the pressure exerted by the cable on the airbag, and the pressure sensor is connected with the signal of the inflator.

Images