High load power cabinet overload monitoring mechanism

Abstract

The application discloses a high-load power cabinet overload monitoring mechanism, which comprises a power cabinet shell, dustproof grid windows are inlaid and mounted on the top of the left and right side walls of the power cabinet shell, a cooling fan which is in communication with one of the dustproof grid windows is fixedly installed on the right side of the top of the inner cavity of the power cabinet shell, a cooling unit which is in communication with the other dustproof grid window is fixedly installed on the left side of the cooling fan, and a monitoring terminal is fixedly installed on the bottom of the inner cavity of the power cabinet shell. The power distribution main plate is arranged, so that the electrical components in the electrical cabinet are conveniently and quickly installed. In the working process of the device, the electrical components in the electrical cabinet are combined into a whole through a plurality of equidistantly distributed plug-in bases inlaid and mounted on the front part of the insulating main plate, the plug-in connection structure is adopted, the dismounting and replacement of the electrical components in the electrical cabinet are facilitated, and the external wire harnesses of the plurality of plug-in bases are clamped in the clamping grooves on the back of the wiring board, so that the maintenance personnel can conveniently maintain the electrical circuit.

Description

Technical Field

[0001] This invention relates to the field of power cabinet technology, and more specifically, to an overload monitoring mechanism for high-load power cabinets. Background Technology

[0002] Power distribution cabinets are an important piece of equipment in power distribution systems. They are mainly used to distribute electrical energy from a circuit in the upper-level power distribution equipment to nearby loads and to provide monitoring and protection for those loads. Existing power distribution cabinets mainly consist of three parts: the cabinet body, the cooling fan, and various electrical components. Depending on the application location, different types of electrical components can be installed inside the power distribution cabinet, making it widely applicable.

[0003] However, existing power cabinets still have some shortcomings in practical applications. For example, existing power cabinets contain a large number of electrical components, and the connection lines between these components are complex. Furthermore, existing power cabinets lack a complete overload monitoring mechanism. Relying solely on existing overload protection switches cannot effectively monitor all electrical components inside the power cabinet. Moreover, overload protection switches are only used to cut off power when there is a system fault or the total load current exceeds the system's set value. They cannot provide circuit protection for local current overloads in the wiring harnesses inside the power cabinet, making them less practical. Summary of the Invention

[0004] To overcome the aforementioned deficiencies of the prior art, embodiments of the present invention provide an overload monitoring mechanism for high-load power cabinets. This addresses the problem that existing power cabinets lack a comprehensive overload monitoring mechanism, and that relying solely on existing overload protection switches cannot effectively monitor all electrical components within the power cabinet. Furthermore, overload protection switches are only used for power-off protection when there is a system fault or the total load current exceeds the system set value. They cannot provide circuit protection for local current overload phenomena in the wiring harnesses within the power cabinet.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a high-load power cabinet overload monitoring mechanism, comprising a power cabinet shell, wherein dustproof grid windows are embedded in the top of the left and right side walls of the power cabinet shell, a cooling fan connected to one of the dustproof grid windows is fixedly installed on the right side of the top of the power cabinet shell, a cooling unit connected to the other dustproof grid window is fixedly installed on the left side of the cooling fan, a monitoring terminal is fixedly installed at the bottom of the power cabinet shell, a power distribution main board is fixedly installed on the top surface of the monitoring terminal, and a sliding monitor electrically connected to the monitoring terminal is movably sleeved on the outside of the power distribution main board;

[0006] The power cabinet shell includes a cabinet body. Ventilation windows adapted to the dustproof grid windows are opened on the top of the left and right side walls of the cabinet body. Fireproof inner partitions are adhered to the inner wall of the cabinet body. Two symmetrically arranged power cabinet doors are movably installed at the cabinet door of the cabinet body.

[0007] The cooling fan includes a double ventilation duct. A temperature sensing control terminal is fixedly installed at the air outlet at the bottom of the double ventilation duct. A blower unit is fixedly installed at the air inlet on the right side of the double ventilation duct, which is attached to the dustproof grid window installed on the right side wall of the main body of the cabinet.

[0008] The cooling unit includes three ventilation ducts. An axial flow fan is fixedly installed at the air inlet on the left side of the three ventilation ducts and is connected to the dustproof grid window installed on the left side wall of the main body of the cabinet. A carbon dioxide compression tank is detachably installed inside the three ventilation ducts. An electrically controlled valve is fixedly installed at the output end of the carbon dioxide compression tank inside the air outlet at the bottom of the three ventilation ducts.

[0009] The monitoring terminal includes a pressure-bearing socket, inside which an intelligent processing terminal is detachably installed. A wireless transceiver is fixedly installed at the front of the intelligent processing terminal, and a connection socket fixedly connected to the pressure-bearing socket is detachably installed at the rear of the intelligent processing terminal. A cable storage slot electrically connected to the connection socket is fixedly installed at the rear of the pressure-bearing socket, and a bundled telescopic cable electrically connected to the connection socket is movably installed in the inner cavity of the cable storage slot.

[0010] The power distribution main board includes an insulating main board, with a plurality of equally spaced plug-in bases embedded in the front of the insulating main board, and a wiring board adapted to the plurality of plug-in bases fixedly installed on the back of the insulating main board.

[0011] The sliding monitor includes a line monitoring board, an electrical component monitoring frame is fixedly installed on the front of the line monitoring board, and threaded screws are threadedly connected to both ends of the electrical component monitoring frame. A bidirectional drive motor that is fixedly connected to the pressure socket is fixedly connected to the bottom end of each of the two threaded screws. A rotating positioning seat is fitted on the top end of each of the two threaded screws, and the two rotating positioning seats are fixedly installed on the bottom surface of the double ventilation pipe and the triple ventilation pipe, respectively.

[0012] Preferably, the line monitoring board includes a lifting beam, a thermal sensor is fixedly installed at the front of the lifting beam, and threaded slots adapted to the threaded screw are opened at both ends of the lifting beam.

[0013] Preferably, the electrical component monitoring frame includes a U-shaped bracket, and a second thermal sensor is fixedly installed on the inner side of the crossbar of the U-shaped bracket. The second thermal sensor and the first thermal sensor are arranged horizontally symmetrically.

[0014] Preferably, the two ends of the U-shaped bracket are fixedly connected to the two ends of the lifting beam, and the rectangular ring formed by the U-shaped bracket and the lifting beam is connected to two bidirectional drive motors through two threaded screws.

[0015] Preferably, the connection socket is composed of a ceramic insulating base and three sets of symmetrically distributed terminals. The bundled telescopic cable is electrically connected to the intelligent processing terminal through one set of terminals. The discharge terminal of the intelligent processing terminal is electrically connected to the thermal sensor one and the thermal sensor two through the bundled telescopic cable.

[0016] Preferably, the insulating motherboard is fixedly installed on the top surface of the pressure-bearing socket, and the external wiring harnesses of several plug-in bases are all snapped into the slots on the back of the wiring board. The charging terminal of the intelligent processing terminal is electrically connected to the main inlet terminal of several plug-in bases through the external wiring harnesses.

[0017] Preferably, the two bidirectional drive motors are fixedly installed at the two corners on the back of the pressure socket, and the power terminals of the two bidirectional drive motors are electrically connected to the intelligent processing terminal through another set of terminals of the connection socket.

[0018] Preferably, the power connection terminal of the blower unit is electrically connected to the temperature sensing control terminal, and the power connection terminal of the temperature sensing control terminal is electrically connected to the main inlet terminal of a plurality of the plug-in bases.

[0019] Preferably, both the axial flow fan and the electrically controlled valve are electrically connected to the temperature sensing control terminal via an external wiring harness.

[0020] The technical effects and advantages of this invention are as follows:

[0021] 1. This invention uses a monitoring terminal in conjunction with a sliding monitor to perform cyclic temperature monitoring of the power distribution mainboard. This achieves overload monitoring and intelligent switching of electrical components inside the electrical cabinet, thereby preventing overload damage to electrical components and the resulting electrical fires, thus improving the safety of the electrical cabinet. During operation, two bidirectional drive motors, along with two threaded screws, drive a rectangular ring composed of a U-shaped bracket and a lifting beam to move up and down outside the power distribution mainboard. This allows thermal sensors one and two to monitor the temperature of the power distribution mainboard in real time. Finally, the intelligent processing terminal automatically analyzes the monitoring data to automatically control the circuit switching of the power distribution mainboard, thereby preventing overload damage and improving the safety of the device.

[0022] 2. By setting up a power distribution main board, this invention achieves convenient and quick installation of electrical components inside the electrical cabinet. During the operation of the device, several equally spaced plug-in bases embedded in the front of the insulating main board are used to plug and pull together the electrical components inside the electrical cabinet into a whole. The plug-in connection structure facilitates the disassembly and replacement of electrical components inside the electrical cabinet. At the same time, the external wiring harnesses of several plug-in bases are all snapped into the slots on the back of the wiring board, which facilitates maintenance personnel to inspect the electrical circuits and improves the practicality of the device.

[0023] 3. This invention, by setting up a cooling fan and a cooling unit, constitutes a dual-system intelligent alternating cooling unit, achieving energy-saving and high-efficiency heat dissipation effects for the electrical cabinet cooling system. During the operation of the device, since the axial flow fan and the electrically controlled valve are electrically connected to the temperature sensing control terminal through an external wiring harness, when the internal temperature of the electrical cabinet is in a normal state (i.e., when the electrical components inside the electrical cabinet are not in an overload state), the cooling fan operates normally to dissipate heat. When the internal temperature of the electrical cabinet is in an abnormal state (i.e., when the electrical components inside the electrical cabinet are in an overload state), the temperature sensing control terminal automatically controls the axial flow fan and the electrically controlled valve to open, using the axial flow fan to bring the low-temperature carbon dioxide released from the carbon dioxide compression tank into the electrical cabinet for low-temperature heat dissipation, thereby improving the heat dissipation efficiency of the electrical components inside the electrical cabinet. Attached Figure Description

[0024] Figure 1 This is an overall structural appearance diagram of the present invention;

[0025] Figure 2 This is a schematic diagram of the overall structure of the present invention;

[0026] Figure 3 This is a schematic diagram of the power cabinet outer shell structure of the present invention;

[0027] Figure 4 This is a schematic diagram of the cooling fan and cooling unit structure of the present invention;

[0028] Figure 5 This is a schematic diagram of the monitoring terminal structure of the present invention;

[0029] Figure 6 This is a schematic diagram of the power distribution mainboard structure of the present invention;

[0030] Figure 7 This is a schematic diagram of the sliding monitor structure of the present invention;

[0031] Figure 8 This is a schematic diagram of the line monitoring board and electrical component monitoring frame of the present invention.

[0032] The attached diagram is labeled as follows: 1. Power cabinet outer shell; 2. Dustproof grille window; 3. Cooling fan; 4. Cooling unit; 5. Monitoring terminal; 6. Power distribution main board; 7. Sliding monitor; 11. Cabinet body; 12. Ventilation window; 13. Fireproof inner partition; 14. Power cabinet door; 31. Dual ventilation duct; 32. Blower unit; 33. Temperature sensing control terminal; 41. Three ventilation duct; 42. Axial flow fan; 43. Carbon dioxide compressor tank; 44. Electrically controlled valve; 51. Pressure-bearing socket; 52. Intelligent... 53. Terminal processing unit; 54. Wireless transceiver; 55. Connecting socket; 56. Cable storage tray; 67. Bundled telescopic cable; 68. Insulated mainboard; 69. Plug-in base; 60. Wiring board; 71. Line monitoring board; 72. Electrical component monitoring rack; 73. Threaded screw; 74. Bidirectional drive motor; 75. Rotary positioning seat; 711. Lifting beam; 712. Thermal sensor one; 713. Threaded slot; 721. U-shaped bracket; 722. Thermal sensor two. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] As attached Figure 1-8The high-load power cabinet overload monitoring mechanism shown includes a power cabinet shell 1. Dustproof grilles 2 are embedded in the top of the left and right side walls of the power cabinet shell 1. A cooling fan 3, connected to one of the dustproof grilles 2, is fixedly installed on the right side of the top of the power cabinet shell 1's inner cavity. A cooling unit 4, connected to the other dustproof grille 2, is fixedly installed on the left side of the cooling fan 3. A monitoring terminal 5 is fixedly installed at the bottom of the inner cavity of the power cabinet shell 1. A power distribution main board 6 is fixedly installed on the top surface of the monitoring terminal 5. A sliding monitor 7, electrically connected to the monitoring terminal 5, is movably sleeved on the outside of the power distribution main board 6. The power cabinet shell 1 includes a cabinet body 11, with openings in the top of the left and right side walls of the cabinet body 11. The unit is equipped with ventilation windows 12 adapted to the dustproof grille window 2. A fireproof inner partition 13 is adhered to the inner wall of the main cabinet body 11. Two symmetrically arranged power cabinet doors 14 are installed at the cabinet door of the main cabinet body 11. The cooling fan 3 includes a double ventilation duct 31. A temperature sensing control terminal 33 is fixedly installed at the air outlet at the bottom of the double ventilation duct 31. A blower unit 32, which is attached to the dustproof grille window 2 installed on the right side wall of the main cabinet body 11, is fixedly installed at the air inlet on the right side of the double ventilation duct 31. The cooling unit 4 includes a three-ventilation duct 41. An axial flow fan 42, which is connected to the dustproof grille window 2 installed on the left side wall of the main cabinet body 11, is fixedly installed at the air inlet on the left side of the three-ventilation duct 41. The interior of the three-ventilation duct 41 is detachably installed. The system includes a carbon dioxide compressor tank 43, with an electrically controlled valve 44 fixedly installed inside the air outlet at the bottom of the three-ventilation duct 41 at the output end of the carbon dioxide compressor tank 43; a monitoring terminal 5 includes a pressure-bearing socket 51, with a smart processing terminal 52 detachably installed inside the pressure-bearing socket 51; a wireless transceiver 53 fixedly installed at the front of the smart processing terminal 52; a connecting socket 54 fixedly connected to the pressure-bearing socket 51 detachably installed at the rear end of the smart processing terminal 52; a cable storage tray 55 electrically connected to the connecting socket 54 fixedly installed at the rear end of the pressure-bearing socket 51; and a bundled telescopic cable 56 electrically connected to the connecting socket 54 movably installed within the inner cavity of the cable storage tray 55; and a power distribution mainboard 6 including... An insulating main board 61 has several equally spaced plug-in bases 62 embedded in its front. A wiring board 63 adapted to the plug-in bases 62 is fixedly installed on the back of the insulating main board 61. The sliding monitor 7 includes a line monitoring board 71. An electrical component monitoring frame 72 is fixedly installed in the front of the line monitoring board 71. Both ends of the electrical component monitoring frame 72 are threadedly connected to threaded screws 73. The bottom ends of the two threaded screws 73 are fixedly connected to bidirectional drive motors 74 that are fixedly connected to pressure sockets 51. The top ends of the two threaded screws 73 are fitted with rotating positioning seats 75. The two rotating positioning seats 75 are fixedly installed on the bottom surfaces of the double ventilation pipe 31 and the triple ventilation pipe 41, respectively.

[0035] As attached Figure 5 To be continued Figure 8The line monitoring board 71 includes a lifting beam 711, with a thermal sensor 712 fixedly mounted on the front of the lifting beam 711. Both ends of the lifting beam 711 have threaded slots 713 that are compatible with the threaded screws 73. The electrical component monitoring frame 72 includes a U-shaped bracket 721, with a thermal sensor 722 fixedly mounted on the inner side of the crossbar of the U-shaped bracket 721. The thermal sensor 722 and the thermal sensor 712 are arranged horizontally symmetrically. Both ends of the U-shaped bracket 721 are fixedly connected to both ends of the lifting beam 711. The rectangular ring formed by the U-shaped bracket 721 and the lifting beam 711 is connected to two bidirectional drive motors 74 via two threaded screws 73. The connection socket 54 is composed of a ceramic insulating base and three sets of symmetrically distributed terminals. The system comprises a bundled telescopic cable 56 electrically connected to an intelligent processing terminal 52 via one set of terminals. The discharge terminal of the intelligent processing terminal 52 is electrically connected to thermal sensor 712 and thermal sensor 722 via the bundled telescopic cable 56. An insulating main board 61 is fixedly installed on the top surface of a pressure socket 51. The external wiring bundles of several plug-in bases 62 are snapped into slots on the back of a wiring board 63. The charging terminal of the intelligent processing terminal 52 is electrically connected to the main inlet terminal of several plug-in bases 62 via the external wiring bundles. Two bidirectional drive motors 74 are fixedly installed at two corners on the back of the pressure socket 51. The power terminals of the two bidirectional drive motors 74 are electrically connected to the intelligent processing terminal 52 via another set of terminals of a connecting socket 54.

[0036] Specifically, by setting up a monitoring terminal 5 in conjunction with a sliding monitor 7 to perform cyclic temperature monitoring of the power distribution mainboard 6, the overload monitoring and intelligent switching of the electrical components inside the electrical cabinet are achieved. This avoids the problem of electrical component overload damage and electrical fires, thus improving the safety of the electrical cabinet. During the operation of the device, two bidirectional drive motors 74, together with two threaded screws 73, drive the rectangular ring formed by the U-shaped bracket 721 and the lifting beam 711 to move up and down outside the power distribution mainboard 6. This allows the thermal sensors 712 and 722 to monitor the temperature of the power distribution mainboard 6 in real time. Finally, the intelligent processing terminal 52 automatically analyzes the monitoring data to automatically control the circuit switching of the power distribution mainboard 6, thereby avoiding overload damage to the power distribution mainboard 6 and improving the safety of the device.

[0037] As attached Figure 3 and attached Figure 6 The power connection terminal of the blower unit 32 is electrically connected to the temperature sensing control terminal 33, and the power connection terminal of the temperature sensing control terminal 33 is electrically connected to the main inlet terminal of several plug-in bases 62; the axial flow fan 42 and the electric control valve 44 are both electrically connected to the temperature sensing control terminal 33 through an external wiring harness.

[0038] Specifically, by setting up a cooling fan 3 and a cooling unit 4, a dual-system intelligent alternating cooling unit is formed, which realizes the energy-saving and high-efficiency heat dissipation effect of the electrical cabinet cooling system. During the operation of the device, since the axial flow fan 42 and the electric control valve 44 are electrically connected to the temperature sensing control terminal 33 through an external wiring harness, when the internal temperature of the electrical cabinet is in a normal state (i.e., when the electrical components inside the electrical cabinet are not in an overload state), the cooling fan 3 operates normally to dissipate heat. When the internal temperature of the electrical cabinet is in an abnormal state (i.e., when the electrical components inside the electrical cabinet are in an overload state), the temperature sensing control terminal 33 automatically controls the axial flow fan 42 and the electric control valve 44 to open, and uses the axial flow fan 42 to bring the low-temperature carbon dioxide released by the carbon dioxide compression tank 43 into the electrical cabinet for low-temperature heat dissipation, thereby improving the heat dissipation efficiency of the electrical components inside the electrical cabinet.

[0039] As attached Figure 5 and attached Figure 6 The power distribution main board 6 includes an insulated main board 61. Several equally spaced plug-in bases 62 are embedded in the front of the insulated main board 61. A wiring board 63 adapted to the plug-in bases 62 is fixedly installed on the back of the insulated main board 61. The insulated main board 61 is fixedly installed on the top surface of the pressure socket 51. The external wiring harnesses of the plug-in bases 62 are all snapped into the slots on the back of the wiring board 63. The charging terminal of the intelligent processing terminal 52 is electrically connected to the main inlet terminal of the plug-in bases 62 through the external wiring harnesses.

[0040] Specifically, by setting up the power distribution main board 6, the installation of electrical components inside the electrical cabinet is made convenient and quick. During the operation of the device, several equally spaced plug-in bases 62 embedded in the front of the insulating main board 61 are used to plug and pull together the electrical components inside the electrical cabinet into a whole. The plug-in connection structure facilitates the disassembly and replacement of electrical components inside the electrical cabinet. At the same time, the external wiring harnesses of several plug-in bases 62 are all snapped into the slots on the back of the wiring board 63, which facilitates the maintenance personnel to inspect the electrical circuits and improves the practicality of the device.

[0041] Working principle of this invention:

[0042] The electrical components inside the electrical cabinet are assembled into a whole by using several equally spaced plug-in bases 62 embedded in the front of the insulating main board 61. The plug-in connection structure facilitates the disassembly and replacement of electrical components inside the electrical cabinet. At the same time, the external wiring harnesses of several plug-in bases 62 are snapped into the slots on the back of the wiring board 63, which facilitates maintenance personnel to inspect electrical circuits and improves the practicality of the device.

[0043] Two bidirectional drive motors 74, together with two threaded screws 73, drive the rectangular ring formed by the U-shaped bracket 721 and the lifting beam 711 to move up and down outside the main power distribution board 6, so that the thermal sensor 1 712 and the thermal sensor 2 722 can monitor the temperature of the main power distribution board 6 in real time. Finally, the intelligent processing terminal 52 automatically analyzes the monitoring data to automatically control the circuit of the main power distribution board 6, thereby avoiding overload damage to the main power distribution board 6 and improving the safety of the device.

[0044] By setting up a cooling fan 3 and a cooling unit 4, a dual-system intelligent alternating cooling unit is formed, which realizes the energy-saving and high-efficiency heat dissipation effect of the electrical cabinet cooling system. During the operation of the device, since the axial flow fan 42 and the electric control valve 44 are electrically connected to the temperature sensing control terminal 33 through an external wiring harness, when the internal temperature of the electrical cabinet is in a normal state (i.e., when the electrical components inside the electrical cabinet are not in an overload state), the cooling fan 3 operates normally to dissipate heat. When the internal temperature of the electrical cabinet is in an abnormal state (i.e., when the electrical components inside the electrical cabinet are in an overload state), the temperature sensing control terminal 33 automatically controls the axial flow fan 42 and the electric control valve 44 to open, and uses the axial flow fan 42 to bring the low-temperature carbon dioxide released by the carbon dioxide compression tank 43 into the electrical cabinet for low-temperature heat dissipation, thereby improving the heat dissipation efficiency of the electrical components inside the electrical cabinet.

[0045] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0046] Secondly: The accompanying drawings of the embodiments disclosed in this invention only involve the structures involved in the embodiments disclosed in this invention. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this invention can be combined with each other.

[0047] In conclusion, the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A high-load power cabinet overload monitoring mechanism, comprising a power cabinet shell (1), wherein dustproof grid windows (2) are inlaid and installed on the top of both the left and right side walls of the power cabinet shell (1), characterized in that, A cooling fan (3) connected to one of the dustproof grilles (2) is fixedly installed on the right side of the top of the inner cavity of the power cabinet shell (1). A cooling unit (4) connected to the other dustproof grille (2) is fixedly installed on the left side of the cooling fan (3). A monitoring terminal (5) is fixedly installed at the bottom of the inner cavity of the power cabinet shell (1). A power distribution main board (6) is fixedly installed on the top surface of the monitoring terminal (5). A sliding monitor (7) that is electrically connected to the monitoring terminal (5) is movably sleeved on the outside of the power distribution main board (6). The power cabinet shell (1) includes a cabinet body (11), and ventilation windows (12) adapted to the dustproof grid window (2) are opened on the top of the left and right side walls of the cabinet body (11). A fireproof inner partition (13) is bonded to the inner wall of the cabinet body (11), and two power cabinet doors (14) are movably installed at the cabinet door of the cabinet body (11). The cooling fan (3) includes a double ventilation pipe (31), and a temperature sensing control terminal (33) is fixedly installed at the air outlet at the bottom of the double ventilation pipe (31). A blower unit (32) is fixedly installed at the air inlet on the right side of the double ventilation pipe (31) and is attached to the dustproof grid window (2) installed on the right side wall of the cabinet body (11). The cooling unit (4) includes a three-ventilation duct (41). An axial flow fan (42) is fixedly installed at the air inlet on the left side of the three-ventilation duct (41) and is connected to the dustproof grid window (2) installed on the left side wall of the cabinet body (11). A carbon dioxide compression tank (43) is detachably installed inside the three-ventilation duct (41). An electrically controlled valve (44) is fixedly installed at the output end of the carbon dioxide compression tank (43) inside the air outlet at the bottom of the three-ventilation duct (41). The monitoring terminal (5) includes a pressure socket (51), and an intelligent processing terminal (52) is detachably installed inside the pressure socket (51). A wireless transceiver (53) is fixedly installed at the front of the intelligent processing terminal (52). A connection socket (54) that is fixedly connected to the pressure socket (51) is detachably installed at the rear end of the intelligent processing terminal (52). A cable storage slot (55) that is electrically connected to the connection socket (54) is fixedly installed at the rear end of the pressure socket (51). A bundled telescopic cable (56) that is electrically connected to the connection socket (54) is movably installed in the inner cavity of the cable storage slot (55). The power distribution main board (6) includes an insulating main board (61), and a plurality of equally spaced plug-in bases (62) are embedded in the front of the insulating main board (61). A wiring board (63) adapted to the plurality of plug-in bases (62) is fixedly installed on the back of the insulating main board (61). The sliding monitor (7) includes a line monitoring board (71), an electrical component monitoring frame (72) is fixedly installed on the front of the line monitoring board (71), and both ends of the electrical component monitoring frame (72) are threadedly connected to threaded screws (73). The bottom ends of the two threaded screws (73) are fixedly connected to bidirectional drive motors (74) that are fixedly connected to the pressure socket (51). The top ends of the two threaded screws (73) are fitted with rotating positioning seats (75), and the two rotating positioning seats (75) are fixedly installed on the bottom surfaces of the double ventilation pipe (31) and the triple ventilation pipe (41), respectively. The line monitoring board (71) includes a lifting beam (711), and a thermal sensor (712) is fixedly installed on the front of the lifting beam (711). The electrical component monitoring frame (72) includes a U-shaped bracket (721), and a thermal sensor (722) is fixedly installed on the inner side of the crossbar of the U-shaped bracket (721). The rectangular ring formed by the U-shaped bracket (721) and the lifting beam (711) is connected to two bidirectional drive motors (74) through two threaded screws (73). The discharge end of the intelligent processing terminal (52) is electrically connected to the thermal sensor (712) and the thermal sensor (722) through the bundled telescopic cable (56). The insulating motherboard (61) is fixedly installed on the top surface of the pressure socket (51), and the external wiring harnesses of several plug-in bases (62) are all snapped into the slots on the back of the wiring board (63). The charging terminal of the intelligent processing terminal (52) is electrically connected to the main inlet terminal of several plug-in bases (62) through the external wiring harnesses.

2. The high-load power cabinet overload monitoring mechanism according to claim 1, characterized in that, Both ends of the lifting beam (711) are provided with threaded slots (713) that are compatible with the threaded screw (73).

3. The high-load power cabinet overload monitoring mechanism according to claim 2, characterized in that, The second thermal sensor (722) is arranged horizontally symmetrically with the first thermal sensor (712).

4. The high-load power cabinet overload monitoring mechanism according to claim 3, characterized in that, The two ends of the U-shaped bracket (721) are fixedly connected to the two ends of the lifting beam (711).

5. The high-load power cabinet overload monitoring mechanism according to claim 4, characterized in that, The connection socket (54) is composed of a ceramic insulating base and three sets of symmetrically distributed terminals. The bundled telescopic cable (56) is electrically connected to the intelligent processing terminal (52) through one set of terminals.

6. The high-load power cabinet overload monitoring mechanism according to claim 5, characterized in that, The two bidirectional drive motors (74) are respectively fixedly installed at the two corners on the back of the pressure socket (51). The power terminals of the two bidirectional drive motors (74) are electrically connected to the intelligent processing terminal (52) through another set of terminals of the connection socket (54).

7. The high-load power cabinet overload monitoring mechanism according to claim 1, characterized in that, The power terminal of the blower unit (32) is electrically connected to the temperature sensing control terminal (33), and the power terminal of the temperature sensing control terminal (33) is electrically connected to the main inlet terminal of several plug-in bases (62).

8. The high-load power cabinet overload monitoring mechanism according to claim 1, characterized in that, The axial flow fan (42) and the electric control valve (44) are both electrically connected to the temperature sensing control terminal (33) through an external wiring harness.

Images