An environmental protection cabinet

Abstract

The present invention relates to the technical field of environmental protection cabinets, and discloses an environmental protection cabinet, including an environmental protection cabinet body, wherein an external cable connection system and a control system are arranged in the environmental protection cabinet body; the external cable connection system is respectively connected to the external cable and the controller of the environmental protection cabinet body, including an integrated guide plate; the integrated guide plate is connected to the high-voltage switch of the environmental protection cabinet body, and an independent installation cavity and a terminal post are arranged on the integrated guide plate; the terminal posts are respectively located in the installation cavity, and are connected to the integrated guide plate and the terminal post; connection units are respectively arranged in the installation cavity; the connection unit includes a connection module and a sensing module, the connection module is sleeved on the external cable, the sensing module is located between the installation cavity and the connection module, and is connected to the control system. The present application is provided with a connection module at the connection between the external cable and the connection post, and the connection module is deformed with the temperature of the connection; and the sensing module is triggered to perform corresponding actions, and a signal is sent to the processing module, so that the faulty line is found at the first time to realize rapid repair.

Description

Technical Field

[0001] The invention relates to the technical field of environmental protection cabinets, in particular to an environmental protection cabinet. Background Art

[0002] Ring main unit is a set of electrical equipment with high-voltage switchgear installed in a steel plate metal cabinet or made into an assembled interval ring main unit. Its core parts use load switches and fuses. With the extensive use of environmental cabinets and the increasing requirements of users for power supply reliability, the existing environmental cabinet cable connection method usually adopts a plug-in connection method, that is, the cable is connected to the input and output lines of the ring main unit through a plug-in plug. This connection method is relatively centralized. When a fault occurs, the partial discharge monitoring system of the ring main unit is required for detection, and the fault line cannot be obtained in the first time, resulting in the inability to handle the fault line in time. Summary of the invention

[0003] In view of this, the present application provides an environmental protection cabinet, which can obtain the fault line in the first time by setting an external cable connection system and a control system in the environmental protection cabinet body, realize timely processing of the fault line, and improve the monitoring of the operation status of the ring network cabinet, which is related to the reliability of power supply. The specific scheme is:

[0004] An environmental protection cabinet comprises: an environmental protection cabinet body, wherein an external cable connection system and a control system are arranged in the environmental protection cabinet body;

[0005] The external cable connection system is respectively connected to the external cable and the environmental protection cabinet body, and the external cable connection system includes an integrated guide plate installed in the environmental protection cabinet body;

[0006] The integrated guide plate is installed in the switch cabinet room of the environmental protection cabinet body, the integrated guide plate is connected to the high-voltage switch of the environmental protection cabinet body, and a plurality of independent installation cavities and terminal posts are evenly arranged on the integrated guide plate;

[0007] The binding posts are respectively arranged at the center of the installation cavity, and the binding posts are respectively connected to the integrated guide plate and one end of the external cable extending into the environmental protection cabinet body;

[0008] The installation cavities are respectively provided with connection units;

[0009] The connection unit includes a connection module and a sensing module arranged at the connection between the terminal post and the external cable;

[0010] The connection module is deformed in response to the change in temperature of the connection between the terminal and the external cable, and the connection with the sensing module is controlled according to the deformation of the connection module;

[0011] The sensing modules are respectively connected to the control system;

[0012] The control system is connected to the controller of the environmental protection cabinet body.

[0013] Preferably, the connection module is sleeved outside one end of the external cable connected to the terminal;

[0014] The sensing module is located between the connecting module and the mounting cavity. The sensing module is mounted in the mounting cavity. A gap is set between the sensing module and the connecting module.

[0015] Preferably, the sensing module includes a housing and a trigger and a signal transmitter arranged in the housing;

[0016] The shell is located on a side of the connection module facing away from the external cable, and the shell is detachably connected in the installation cavity;

[0017] The trigger and the signal transmitter are respectively installed in the housing, and the signal transmitter is connected to the control system;

[0018] The trigger is located on a side of the signal transmitter facing the connection module, and the trigger includes a vacuum tube and trigger terminals arranged at both ends of the vacuum tube;

[0019] The vacuum tube is parallel to the connection module, the vacuum tube is installed in the shell, and a trigger mechanism is provided between the vacuum tube and the shell;

[0020] The trigger terminal is made of conductive material, and is sealed and connected to the vacuum tube. One end of the trigger terminal extends into the vacuum tube, and the other end of the trigger terminal is located outside the vacuum tube and is electrically connected to the positive and negative poles of the power supply of the signal transmitter respectively.

[0021] One end of the trigger terminal extending into the vacuum tube is a magnetic sheet with opposite magnetic poles, and the magnetic sheets with opposite magnetic poles are arranged with gaps in a direction away from the connection module and overlapped;

[0022] The trigger mechanism is installed in the housing, and the connection module controls the connection with the trigger mechanism according to the magnitude of its own deformation. The trigger mechanism controls the on and off of the power supply of the signal transmitter according to the connection relationship with the connection module.

[0023] Preferably, the trigger mechanism comprises a spacer;

[0024] The isolation sheet is arranged corresponding to the vacuum tube, the isolation sheet is installed on the inner side of the shell and slides up and down along the shell, a magnetic stopper is arranged at the bottom of the isolation sheet, and a magnetic trigger plate is arranged on the side of the isolation sheet facing away from the vacuum tube;

[0025] The magnetic trigger plate is mounted on the inner side of the housing;

[0026] The magnetic stopper is movably mounted on the shell and slides along the inner and outer directions of the shell.

[0027] Preferably, the connection module comprises a connection portion and a deformation portion;

[0028] The connecting portion is sleeved outside one end of the external cable connected to the terminal;

[0029] The deformable part is arranged on the peripheral side of the connecting part, the deformable part is respectively arranged with gaps between the external cable and the sensing module, one end of the deformable part is connected to the connecting part, and the other end of the deformable part faces the bottom of the installation cavity;

[0030] The deformation part is made of a thermosensitive magnetic material;

[0031] The connecting portion is made of heat conductive material.

[0032] Preferably, the deformation portion comprises a first deformation layer and a second deformation layer connected together;

[0033] The first deformable layer and the second deformable layer are respectively parallel to the terminal post, and the top ends of the first deformable layer and the second deformable layer are respectively connected to the connecting portion;

[0034] The first deformable layer is located outside the second deformable layer, and the deformation coefficient of the first deformable layer is smaller than the deformation coefficient of the second deformable layer, so that when heated, the entire deformable portion bends toward one side of the sensing module.

[0035] Preferably, the control system comprises:

[0036] The encoding module performs position encoding on the signal transmitter in the sensing module according to the position of the installation cavity where each sensing module is located on the integrated guide plate;

[0037] The processing module is connected to the encoding module and the signal transmitter, and constructs a position model of each external cable connected to the installation cavity of the integrated guide plate according to the position code of the signal transmitter, and according to the signal sent by the signal transmitter, calls out the position code corresponding to the signal transmitter to obtain the position information of the corresponding external cable, and sends it to the control module;

[0038] The control module is connected to the controller and processing module of the environmental protection cabinet body respectively. According to the position code corresponding to the signal transmitter sent by the processing module, the control module sends the position of the corresponding external cable line to the controller of the environmental protection cabinet body to quickly mark and repair the faulty cable. At the same time, the controller of the environmental protection cabinet body shuts off the power supply of the faulty line through the high-voltage switch to avoid further expansion of losses.

[0039] Compared with the prior art, the beneficial effects of this application are:

[0040] The present application is provided with an external cable connection system and a control system in the environmental protection cabinet body, and the connection between the external cable and the environmental protection cabinet body is realized through the integrated guide plate in the external cable connection system. Specifically, the integrated guide plate is connected to the high-voltage switch of the environmental protection cabinet body to realize the connection between the external cable connection system and the environmental protection cabinet; a plurality of installation cavities are provided on the integrated guide plate, and the installation cavities are respectively provided with terminal blocks for connecting external cables to realize the connection between the external cable connection system and the external cable; by respectively providing connection units in the installation cavities, the connection modules in the connection units are installed on the outside of the terminal end (i.e., the end connected to the terminal block) of the external cable, and the induction module in the connection unit is located at the outer side of the terminal end of the external cable. on the side of the connection module facing away from the external cable; when the external cable fails, the terminal of the external cable is the most sensitive, causing the local temperature of the connection between the external cable and the terminal post to change, and the connection module will be deformed accordingly, and according to the size of the deformation, the connection relationship with the sensing module is controlled; when the deformation of the connection module causes the connection module to be connected to the sensing module, the sensing module sends a signal to the control system accordingly, so that the controller of the environmental protection cabinet body can find the faulty line as soon as possible and notify the relevant personnel to carry out emergency repairs; at the same time, the controller of the environmental protection cabinet body shuts off the power supply of the line where the faulty external cable is located through the high-voltage switch to avoid further expansion of losses. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 This is a schematic diagram of the structure of an environmental protection cabinet in an embodiment of the present application;

[0042] Figure 2 A top view of a connection unit in an environmental protection cabinet in an embodiment of the present application;

[0043] Figure 3 This is an exploded schematic diagram of a connection unit in an environmental protection cabinet in an embodiment of the present application;

[0044] Figure 4 This is a structural schematic diagram of the connection module and the sensing module when the external cable in the environmental protection cabinet is in normal operation in the embodiment of the present application;

[0045] Figure 5 This is a structural schematic diagram of the connection module and the sensing module when an external cable in the environmental protection cabinet fails in an embodiment of the present application;

[0046] Figure 6 A schematic top view of a trigger mechanism, a trigger, and a connection module in an environmental protection cabinet in an embodiment of the present application;

[0047] In the figure: 1. high-voltage switch; 2. integrated guide plate; 3. connection unit; 4. external cable; 30. magnetic trigger plate; 31. installation cavity; 32. sensing module; 33. deformation part; 34. connection part; 35. signal transmitter; 36. vacuum tube; 37. magnetic sheet; 38. magnetic stopper; 39. isolation sheet; 41. terminal. DETAILED DESCRIPTION

[0048] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0049] See also Figure 1-6 , the present invention provides an environmental protection cabinet, comprising: an environmental protection cabinet body, wherein an external cable connection system and a control system are arranged in the environmental protection cabinet body;

[0050] The external cable connection system is connected to the external cable 4 and the environmental protection cabinet body respectively, and the external cable connection system includes an integrated guide plate 2 installed in the environmental protection cabinet body;

[0051] The integrated guide plate 2 is installed in the switch cabinet room of the environmental protection cabinet body, the integrated guide plate 2 is connected to the high-voltage switch 1 of the environmental protection cabinet body, and a plurality of independent installation cavities 31 and terminal posts 41 are evenly arranged on the integrated guide plate 2;

[0052] The binding posts 41 are respectively arranged at the center of the installation cavity 31, and the binding posts 41 are respectively connected to the integrated guide plate 2 and one end of the external cable 4 extending into the environmental protection cabinet body;

[0053] The installation cavities 31 are respectively provided with connection units 3;

[0054] The connection unit 3 is sleeved outside one end of the external cable 4 extending into the environmental protection cabinet body. The connection unit 3 is detachably connected in the installation cavity 31. The connection units are respectively connected to the control system.

[0055] Further, the connection unit 3 includes a connection module and a sensing module 32;

[0056] The connection module is sleeved outside one end of the external cable 4 extending into the environmental protection cabinet body;

[0057] The sensing module 32 is located between the connecting module and the installation cavity 31 . The sensing module 32 is detachably connected to the installation cavity 31 . There is a gap between the sensing module 32 and the connecting module. The sensing modules 32 are electrically connected to the control system respectively.

[0058] Furthermore, the sensing module 32 includes a housing and a trigger and a signal transmitter 35 disposed in the housing;

[0059] The housing is located on a side of the connection module facing away from the external cable 4, and the housing is detachably connected in the installation cavity 31;

[0060] The trigger and the signal transmitter 35 are respectively installed in the housing, and the signal transmitter 35 is electrically connected to the control system;

[0061] The trigger is located on a side of the signal transmitter 35 facing the connection module, and the trigger includes a vacuum tube 36 and trigger terminals arranged at both ends of the vacuum tube 36;

[0062] The trigger terminal is made of conductive material, and is sealed and connected to the vacuum tube 36. One end of the trigger terminal extends into the vacuum tube 36, and the ends of the trigger terminal extending into the vacuum tube 36 are magnetic sheets 37 with opposite magnetic poles. The other end of the trigger terminal is located outside the vacuum tube 36, and is electrically connected to the positive and negative poles of the power supply of the signal transmitter 35.

[0063] The magnetic sheets 37 with opposite magnetic poles are arranged with a gap in the direction away from the connection module and overlap (in the present application, the overlap of the two magnetic sheets 37 with opposite magnetic poles in the vacuum tube means that the projections of the two magnetic sheets 37 with opposite magnetic poles on the tube body of the vacuum tube 36 on the side of the side wall facing the installation cavity overlap);

[0064] The vacuum tubes 36 are parallel to the connection modules, the vacuum tubes 36 are respectively installed in the shells, and a trigger mechanism is provided between the vacuum tubes 36 and the shells;

[0065] The trigger mechanism is mounted on the housing, and the connection module controls the connection with the trigger mechanism according to the magnitude of its own deformation. The trigger mechanism controls the on and off of the power supply of the signal transmitter 35 according to the connection relationship with the connection module.

[0066] Further, the trigger mechanism includes a spacer 39;

[0067] The isolation sheet 39 is arranged corresponding to the vacuum tube 36. The isolation sheet 39 is installed on the inner side of the shell and slides up and down along the shell. A magnetic stopper 38 is arranged at the bottom of the isolation sheet 39. A magnetic trigger plate 30 is arranged on the side of the isolation sheet 39 facing away from the vacuum tube 36.

[0068] The magnetic trigger plate 30 is installed on the inner side of the housing;

[0069] The magnetic stopper 38 is movably mounted on the housing and slides along the inner and outer directions of the housing.

[0070] In the present application, the sliding connection between the isolation sheet 39 and the housing is achieved through a vertical slide groove, specifically: a vertical installation groove is provided on one side of the housing facing the terminal, and two groove walls of the installation groove are provided with vertical slide grooves;

[0071] The isolation sheet 39 is located in the vertical installation groove, and the two sides are slidably connected in the vertical sliding grooves respectively;

[0072] The sliding connection between the magnetic stopper 38 and the shell is achieved through a transverse slide groove, specifically: a transverse mounting groove is provided on the shell, the transverse mounting groove passes through from the outside to the inside of the shell, the transverse mounting groove is located at the bottom of the vertical mounting groove, and is connected to the vertical mounting groove, and transverse slide grooves are provided on the two groove walls of the transverse mounting groove, the magnetic stopper 38 is located in the transverse mounting groove, and the two sides of the magnetic stopper 38 are respectively slidably connected in the transverse slide grooves.

[0073] In the present application, the isolation sheet 39 is a magnetic isolation sheet;

[0074] One end of the magnetic stopper 38 facing the terminal post is located directly below the isolation sheet 39 .

[0075] Furthermore, the connection module includes a connection portion 34 and a deformation portion 33;

[0076] The connecting portion 34 is sleeved on the outer side of one end of the external cable 4 connected to the terminal 41;

[0077] The deformable portion 33 is disposed on the peripheral side of the connecting portion 34, and the deformable portion 33 is respectively disposed with gaps between the external cable 4 and the sensing module 32, one end of the deformable portion 33 is connected to the connecting portion 34, and the other end of the deformable portion 33 faces the bottom of the installation cavity 31;

[0078] The deformation part 33 is made of a thermosensitive magnetic material;

[0079] The connecting portion 34 is made of heat-conducting material, and the connecting portion 34 quickly transfers the heat at the connection between the external cable 4 and the terminal 41 to the deformation portion 33 .

[0080] Further, the deformation portion 33 includes a first deformation layer and a second deformation layer connected together;

[0081] The first deformable layer and the second deformable layer are parallel to the terminal 41, and the tops of the first deformable layer and the second deformable layer are connected to the connecting portion 34, respectively.

[0082] The first deformable layer is located outside the second deformable layer, and the deformation coefficient of the first deformable layer is smaller than the deformation coefficient of the second deformable layer, so that when heated, the entire deformable portion 33 bends toward one side of the sensing module 32 .

[0083] It should be noted that:

[0084] The magnetic trigger plate 30 is located on the side of the isolation plate 39 facing away from the vacuum tube 36. The area of ​​the magnetic trigger plate 30 is smaller than the area of ​​the isolation plate 39. The area of ​​the magnetic trigger plate 30 coincides with the projection of the vacuum tube 36 on the side wall of the shell. The distance between the magnetic trigger plate 30 and the magnetic stopper 38 is greater than the distance between the magnetic trigger plate 30 and the vacuum tube 36. The centers of the magnetic trigger plate 30, the vacuum tube 36, and the isolation plate 39 are located on the same straight line.

[0085] In the present application, one end of the external cable 4 extending into the ring alarm cabinet is the wiring terminal, and the terminal post 41 is located at the center of the bottom of the installation cavity 31. The terminal post 41 is connected to the wiring terminal of the external cable 4, and the wiring terminal of the external cable 4 is plugged into the outside of the terminal post 41.

[0086] The sensing module 32 is located on the peripheral side of the terminal post 41 , and the sensing module 32 is installed in the installation cavity 31 .

[0087] The connecting module is sleeved on the outside of the wiring terminal. The connecting module is located between the sensing module 32 and the terminal 41. The connecting module is inserted into the installation cavity. The deformation part 33 in the connecting module is set toward the sensing module. The deformation part 33 and the sensing module 32 are spaced apart. The deformation part is a thermosensitive magnetic material.

[0088] The deformation part 33 is parallel to the terminal of the external cable 4, the top of the deformation part 33 is connected to the connection part 34, the other end of the deformation part 33 faces the bottom of the installation cavity 31, and the deformation part 33 is set with a gap between the housing of the sensing module, and the deformation part 33 is a magnetic thermosensitive material. The magnetic thermosensitive material is determined according to the limit temperature of the abnormal condition of the terminal of the external cable 4.

[0089] Discharge or heating in the environmental protection cabinet often occurs at the connection point, and abnormal conditions occur between the terminal of the external cable 4 and the terminal 41. Whether it is an abnormality caused by local discharge or heating, the temperature of the connection between the external cable 4 and the terminal 41 will change. At this time, the connecting portion 34 will transfer the heat to the deformation portion 33 in the first time. The deformation portion 33 changes with the temperature change of the connection between the terminal of the external cable 4 and the terminal 41 in the installation cavity, and the change of the heat transferred by the connecting portion 34. The deformation occurs to different degrees, which is reflected as follows: the end facing away from the connecting portion 34 is facing the induction One side of the module 32 is bent; when the temperature at the connection point of the external cable 4 changes only occasionally or is within a safe range, the deformation amount of the deformation part 33 is not enough to contact the sensing module 32. At this time, the deformed part of the deformation part 33 is located outside the magnetic attraction range of the magnetic stopper 38; and when the temperature of the connection point of the external cable 4 and the terminal continues to rise or exceeds the safe range, the deformation amount of the deformation part 33 is enough to contact the sensing module 32, and the deformation amount of the deformation part 33 is enough to make the deformed end of the deformation part 33 located within the magnetic attraction range of the magnetic stopper 38 in the trigger mechanism. When the end of the deformation portion 33 that is deformed is magnetically connected to the magnetic stopper 38, the magnetic stopper 38 slides along the side of the shell that is away from the terminal 41. Since the magnetic stopper 38 slides away from the bottom of the isolation sheet 39, the isolation sheet 39 slides down along the shell, and the magnetic trigger plate 30 arranged on the back of the isolation sheet 39 is exposed. The two magnetic sheets 37 with opposite magnetic poles at one end of the trigger terminal extending into the vacuum tube 36 are attracted together, and the signal transmitter 35 is powered on. The signal transmitter 35 sends a signal to the processing module, and the processing module marks the corresponding external cable according to the position code of the signal transmitter 35 that sends the signal. 4, so as to mark the specific faulty external cable in the first time; the processing module feeds back the position of the faulty external cable to the control module, and the control module sends it to the controller of the environmental protection cabinet body. On the one hand, the controller of the environmental protection cabinet body prompts the maintenance personnel to inspect the line where the faulty external cable is located according to the specific position of the faulty external cable; on the other hand, the environmental protection cabinet disconnects the power supply of the terminal 41 corresponding to the faulty external cable through the high-voltage switch 1, and shuts down the power supply of the line where the faulty external cable is located, so as to ensure the safety inside the environmental protection cabinet body and not affect the power supply of other external cables inside the environmental protection cabinet body.

[0090] In the present application, the connection terminals of each external cable 4 are located in an independent installation cavity 31, so as to avoid the heating of a single external cable 4 causing heating of the surrounding area, causing misjudgment of the monitoring system and making it impossible to quickly find the faulty external cable 4.

[0091] In the present application, the connection module and the sensing module 32 are independently provided, and can be replaced if one part is damaged, without affecting the use of the connection module and the sensing module 32 matching other external cables 4.

[0092] In this application, the control system includes:

[0093] The encoding module encodes the signal transmitter 35 in the sensing module 32 according to the position of the mounting cavity 31 where each sensing module 32 is located on the integrated guide plate 2;

[0094] The processing module is connected to the encoding module and the signal transmitter 35 respectively, and constructs a position model of each external cable 4 connected to the installation cavity 31 of the integrated guide plate 2 according to the position code of the signal transmitter 35, and according to the signal sent by the signal transmitter 35, calls out the position code corresponding to the signal transmitter 35 to obtain the position information of the corresponding external cable 4, and sends it to the control module;

[0095] The control module is connected to the controller and processing module of the environmental protection cabinet body. According to the position code corresponding to the signal transmitter sent by the processing module, the control module sends the position of the line where the corresponding external cable 4 is located to the controller of the environmental protection cabinet body, so as to quickly mark and repair the faulty cable. At the same time, the controller of the environmental protection cabinet body shuts off the power supply of the faulty line through the high-voltage switch to avoid further expansion of losses.

[0096] In the present application, the control module and the signal transmitter 35 are both connected by wireless communication.

[0097] The depth of the mounting cavity 31 is higher than the overall height of the connection module and the sensing module 32;

[0098] The integrated guide plate 2 is a cavity structure, wherein connecting wires connected to the respective terminals 41 are arranged in the cavity structure, one end of the connecting wires is respectively connected to the high voltage switch 1 , and the other end of the connecting wires is respectively connected to the terminals 41 .

[0099] In the environmental protection cabinet body, the power supply is connected to the ring network to supply power to the ring network. The ring network is connected to the high-voltage switch 1, and power is distributed to the outside through the high-voltage switch 1. In the application, the high-voltage switch 1 is connected to the connecting wire in the integrated guide plate 2, and the power supply is distributed to each terminal 41 through the connecting wire in the integrated guide plate 2.

Claims

1. An environmental protection cabinet, comprising: The environmental protection cabinet body is characterized in that an external cable connection system and a control system are arranged in the environmental protection cabinet body; The external cable connection system is connected to the external cable and the environmental protection cabinet body respectively, and the external cable connection system includes an integrated guide plate installed in the environmental protection cabinet body; The integrated guide plate is installed in the switch cabinet room of the environmental protection cabinet body, the integrated guide plate is connected to the high-voltage switch of the environmental protection cabinet body, and a plurality of independent installation cavities and terminal posts are evenly arranged on the integrated guide plate; The binding posts are respectively arranged at the center of the installation cavity, and the binding posts are respectively connected to the integrated guide plate and one end of the external cable extending into the environmental protection cabinet body; The installation cavities are respectively provided with connection units; The connection unit includes a connection module and a sensing module arranged at the connection between the terminal post and the external cable; The connection module is deformed in response to the change in temperature of the connection between the terminal and the external cable, and the connection with the sensing module is controlled according to the deformation of the connection module; The sensing modules are respectively connected to the control system; The control system is connected to the controller of the environmental protection cabinet body; The sensing module includes a housing and a trigger and a signal transmitter arranged in the housing; The shell is located on a side of the connection module facing away from the external cable, and the shell is detachably connected in the installation cavity; The trigger and the signal transmitter are respectively installed in the housing, and the signal transmitter is connected to the control system; The trigger is located on a side of the signal transmitter facing the connection module, and the trigger includes a vacuum tube and trigger terminals arranged at both ends of the vacuum tube; The vacuum tube is parallel to the connection module, the vacuum tube is installed in the shell, and a trigger mechanism is provided between the vacuum tube and the shell; The trigger terminal is made of conductive material, and is sealed and connected to the vacuum tube. One end of the trigger terminal extends into the vacuum tube, and the other end of the trigger terminal is located outside the vacuum tube and is electrically connected to the positive and negative poles of the power supply of the signal transmitter respectively. One end of the trigger terminal extending into the vacuum tube is a magnetic sheet with opposite magnetic poles, and the magnetic sheets with opposite magnetic poles are arranged with gaps in a direction away from the connection module and overlapped; The trigger mechanism is installed in the housing, and the connection module controls the connection with the trigger mechanism according to the magnitude of the deformation of the connection module, and the trigger mechanism controls the on and off of the power supply of the signal transmitter according to the connection relationship with the connection module; In the environmental protection cabinet body, the power supply is connected to the ring network to supply power to the ring network, the ring network is connected to the high-voltage switch to distribute power to the outside through the high-voltage switch, the high-voltage switch is connected to the connecting wire in the integrated guide plate, and the power supply is distributed to each terminal through the connecting wire in the integrated guide plate; The connection module includes a connection portion and a deformation portion; The connecting portion is sleeved outside one end of the external cable connected to the terminal; The deformable part is arranged on the peripheral side of the connecting part, the deformable part is respectively arranged with gaps between the external cable and the sensing module, one end of the deformable part is connected to the connecting part, and the other end of the deformable part faces the bottom of the installation cavity; The deformation part is made of a thermosensitive magnetic material; The connecting portion is made of heat-conducting material; The deformation portion includes a first deformation layer and a second deformation layer connected together; The first deformable layer and the second deformable layer are respectively parallel to the terminal post, and the top ends of the first deformable layer and the second deformable layer are respectively connected to the connecting portion; The first deformable layer is located outside the second deformable layer, and the deformation coefficient of the first deformable layer is smaller than the deformation coefficient of the second deformable layer, so that when heated, the entire deformable portion bends toward one side of the sensing module.

2. The environmental protection cabinet according to claim 1, characterized in that: The connection module is sleeved outside one end of the external cable connected to the terminal; The sensing module is located between the connecting module and the mounting cavity. The sensing module is mounted in the mounting cavity. A gap is set between the sensing module and the connecting module.

3. The environmental protection cabinet according to claim 1, characterized in that: The trigger mechanism includes a spacer; The isolation sheet is arranged corresponding to the vacuum tube, the isolation sheet is installed on the inner side of the shell and slides up and down along the shell, a magnetic stopper is arranged at the bottom of the isolation sheet, and a magnetic trigger plate is arranged on the side of the isolation sheet facing away from the vacuum tube; The magnetic trigger plate is mounted on the inner side of the housing; The magnetic stopper is movably mounted on the shell and slides along the inner and outer directions of the shell.

4. The environmental protection cabinet according to claim 1, characterized in that: The control system comprises: The encoding module performs position encoding on the signal transmitter in the sensing module according to the position of the installation cavity where each sensing module is located on the integrated guide plate; The processing module is connected to the encoding module and the signal transmitter respectively, and constructs a position model of each external cable connected to the installation cavity of the integrated guide plate according to the position code of the signal transmitter, and calls out the position code corresponding to the signal transmitter according to the signal sent by the signal transmitter to obtain the position information of the corresponding external cable, and sends it to the control module; The control module is connected to the controller and the processing module of the environmental protection cabinet body respectively, and sends the position of the line where the corresponding external cable is located to the controller of the environmental protection cabinet body according to the position code corresponding to the signal transmitter sent by the processing module.

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