Electrical automation control cabinet

Abstract

The utility model relates to an electrical automation control cabinet, and relates to the field of control cabinets, the electrical automation control cabinet comprises a cabinet body and a cabinet door hinged on the cabinet body, and further comprises a trigger device, a control device and a light device, the trigger device is arranged on one side, close to the cabinet door, of the cabinet body; mounting grooves used for mounting the triggering device are symmetrically formed in the side, close to the triggering device, of the cabinet body, and the light device is arranged in the cabinet body and used for illumination; the trigger device is used for identifying the opening and closing state of the cabinet door and outputting a trigger signal, the control device is connected with the trigger device to receive the trigger signal and output a control signal, and the light device is connected with the control device to receive the control signal and respond to the control signal to control the on and off of the light device. The control cabinet has the effects of improving the use convenience of the control cabinet and automatically providing light.

Description

Technical Field

[0001] The present application relates to the field of control cabinets, and in particular to an electrical automation control cabinet. Background Art

[0002] A control cabinet refers to a device that assembles switchgear, measuring instruments, self-locking electrical appliances and auxiliary equipment in a closed or semi-closed metal cabinet or on a screen according to electrical wiring requirements.

[0003] In the prior art, a control cabinet includes a cabinet body, a cabinet door, and equipment installed in the cabinet body. A cavity is left on the cabinet body for installing the equipment, and the cabinet door is hinged on the cabinet body to close the cavity. The control cabinet can be set indoors or outdoors.

[0004] When the lighting conditions in the environment where the control cabinet is located are poor, the staff is required to carry a flashlight or other light source to distinguish the equipment in the cabinet, which makes it inconvenient to operate the equipment in the cabinet. Utility Model Content

[0005] In order to improve the convenience of using the control cabinet and provide lighting by itself, the present application provides an electrical automation control cabinet.

[0006] An electrical automation control cabinet, comprising a cabinet body and a cabinet door hinged on the cabinet body, characterized in that: it also comprises a trigger device, a control device and a lighting device, wherein the trigger device is arranged on a side of the cabinet body close to the cabinet door, and a mounting groove for mounting the trigger device is symmetrically provided on a side of the cabinet body close to the trigger device, and the lighting device is arranged in the cabinet body and used for lighting;

[0007] The trigger device is used to identify the opening and closing state of the cabinet door and convert it into a trigger signal, the control device is connected to the trigger device to receive the trigger signal and output a control signal, and the lighting device is connected to the control device to receive the control signal and respond to the control signal to control the opening and closing of the lighting device;

[0008] When the cabinet door is opened, the trigger device outputs a high-level trigger signal, and the control device receives the high-level trigger signal and controls the lighting device to illuminate; when the cabinet door is closed, the trigger device outputs a low-level trigger signal, and the control device receives the low-level trigger signal and controls the lighting device not to illuminate.

[0009] By adopting the above technical solution, the opening and closing of the cabinet door is identified by the trigger device, so that the interior of the cabinet is illuminated by the lighting device when the cabinet door is opened, and the lighting of the lighting device is turned off when the cabinet door is closed, thereby facilitating the staff to operate the equipment in the cabinet under dim conditions and improving the convenience of using the control cabinet.

[0010] Preferably, it also includes a photosensitive device and a logic device;

[0011] The photosensitive device is used to identify the brightness of the interior of the cabinet and output a photosensitive signal, and the logic device is connected to the photosensitive device and the trigger device to receive the photosensitive signal and the trigger signal and output a logic signal to the control device;

[0012] When the trigger device outputs a high-level trigger signal and the light-sensing device outputs a low-level light-sensing signal, the logic device receives the low-level light-sensing signal and the high-level trigger signal and outputs a low-level logic signal, and the control device receives the low-level logic signal and controls the lighting device not to illuminate;

[0013] When the trigger device outputs a high-level trigger signal and the light-sensing device outputs a high-level light-sensing signal, the logic device receives the high-level light-sensing signal and the high-level trigger signal and outputs a high-level logic signal, and the control device receives the high-level logic signal and controls the lighting device to illuminate;

[0014] When the trigger device outputs a low-level trigger signal, the logic device receives the low-level trigger signal and outputs a low-level logic signal, and the control device receives the low-level logic signal and controls the lighting device not to illuminate.

[0015] By adopting the above technical solution, the light intensity inside the cabinet is identified by the photosensitive device, so that when the cabinet door is opened and the light inside the cabinet is weak, the lighting device is started for lighting, thereby facilitating the staff to operate the equipment in the cabinet under dim conditions and improving the convenience of using the control cabinet.

[0016] Preferably, the photosensitive device comprises a photosensitive module, a reference module and a comparison module;

[0017] The photosensitive module is used to identify the physical quantity of light intensity in the cabinet and convert it into a photosensitive signal, the reference module is used to provide a reference signal, and the comparison module is connected to the photosensitive module and the reference module to receive the photosensitive signal and the reference signal and output the photosensitive signal to the logic device;

[0018] When the photosensitive signal is greater than the reference signal, the photosensitive module outputs a high-level photosensitive signal and the comparison module outputs a low-level photosensitive signal; when the photosensitive signal is less than the reference signal, the photosensitive module outputs a low-level photosensitive signal and the comparison module outputs a high-level photosensitive signal.

[0019] By adopting the above technical solution, the light intensity condition for starting the lighting device is set through the reference signal, so that the lighting device is started at the set light intensity for supplementary lighting, thereby reducing the energy waste caused by starting the lighting device when the light intensity is high.

[0020] Preferably, the reference module comprises an adjusting unit and a fixing unit, and the adjusting unit is used to adjust the magnitude of the reference signal.

[0021] By adopting the above technical solution, the resistance of the adjusting unit is adjusted to change the ratio of the resistance of the adjusting unit to that of the fixed unit, thereby changing the size of the output reference signal, and then the light intensity condition for starting the lighting device can be set according to environmental conditions, thereby improving the convenience of using the photosensitive device.

[0022] Preferably, it also includes a self-locking device for keeping the lighting device continuously illuminated;

[0023] The self-locking device is connected to the comparison module and the trigger device to receive the comparison signal and the trigger signal and output the self-locking signal to the logic device;

[0024] When the self-locking device receives a high-level light-sensing signal and a high-level trigger signal at the same time, the self-locking device continuously outputs a high-level self-locking signal to the logic device. When the self-locking device receives a low-level trigger signal, the self-locking device switches to output a low-level self-locking signal. The logic device is connected to the self-locking device to receive the self-locking signal and output a logic signal.

[0025] The logic device receives a high-level self-locking signal and a high-level trigger signal and outputs a high-level logic signal. The logic device receives a high-level self-locking signal and a low-level trigger signal and outputs a low-level logic signal.

[0026] By adopting the above technical solution, the photosensitive device is self-locked by the self-locking device, thereby reducing the situation where the light intensity in the cabinet increases when the lighting device is started, causing the lighting device to shut down, and then causing the lighting device to frequently turn on and off, thereby improving the stability of the use of the lighting device.

[0027] Preferably, the self-locking device comprises a switch module and an execution module;

[0028] The switch module is connected to the comparison module to receive the light-sensing signal and output the switch signal, and the execution module is connected to the switch module to receive the switch signal and output the self-locking signal to the logic device;

[0029] When the trigger device outputs a high-level trigger signal and the comparison module outputs a high-level photosensitivity signal, the switch module receives the high-level photosensitivity signal and outputs a high-level switch signal, the execution module receives the high-level switch signal and outputs a high-level self-locking signal to the logic device; when the light level inside the cabinet rises to the point where the comparison module outputs a low-level photosensitivity signal, the switch module receives a low-level photosensitivity signal, the execution module receives the low-level switch signal and outputs a high-level self-locking signal to the logic device.

[0030] By adopting the above technical solution, the execution module is controlled by the switch module, so that the lighting device is kept started when the cabinet door is open and the light intensity is weak, and the self-locking is released when the cabinet door is closed, thereby improving the stability of the use of the lighting device.

[0031] Preferably, it also includes a detection device and a backup lighting device;

[0032] The detection device is used to detect the power circuit of the lighting device and convert it into a detection signal. The backup lighting device is connected to the detection device to receive the detection signal and respond to the detection device to control the start and stop of the backup lighting device. The backup lighting device is connected to the control device to receive the control signal and respond to the control signal to control the power circuit of the backup lighting device.

[0033] When the lighting device forms a power-on circuit and the backup lighting device forms a power-on circuit, the detection device sends a high-level detection signal, the backup lighting device receives the high-level detection signal and controls the backup lighting device not to illuminate; when the lighting device does not form a power-on circuit and the backup lighting device forms a power-on circuit, the detection device sends a low-level detection signal, the backup lighting device receives the low-level detection signal and controls the backup lighting device to illuminate.

[0034] By adopting the above technical solution, when the lighting device is working normally, the backup lighting device does not illuminate, and when the lighting device is damaged, the backup lighting device is started to illuminate, thereby improving the stability of the control cabinet.

[0035] Preferably, it further comprises a power supply device for power supply, wherein the power supply device comprises a protection module, a rectifier module and a transformer module;

[0036] The protection module is connected to the three-phase power supply and outputs a protection signal, the rectifier module is connected to the protection module and rectifies and outputs a rectified signal, and the transformer module is connected to the rectifier module to receive the rectified signal and step down the output voltage signal to power the circuit.

[0037] By adopting the above technical solution, the three-phase power supply is converted into a regulated DC power supply that can directly supply power to the circuit through the power module after rectification and voltage reduction, thereby facilitating the direct connection of the circuit with the three-phase power supply and improving the ease of use of the control cabinet.

[0038] Preferably, the side of the installation groove close to the cabinet door is connected to the outside, and the side of the cabinet close to the trigger device is symmetrically provided with limiting plates for fixing the trigger device, and the trigger device is provided with a sliding groove for the limiting plate to slide.

[0039] By adopting the above technical solution, the limit plate presses against the trigger device in the sliding groove, thereby reducing the possibility of the trigger device falling off the cabinet, thereby improving the stability of the installation of the trigger device and the stability of the control cabinet.

[0040] Preferably, a limiting protrusion for limiting the trigger device in the installation groove is provided on one side of the cabinet close to the trigger device, the limiting protrusion is located in the installation groove, and a limiting groove for the limiting protrusion to press against is opened on the trigger device.

[0041] By adopting the above technical solution, the limiting protrusion presses against the trigger device in the limiting groove, thereby reducing the possibility of the trigger device falling off the cabinet, thereby improving the stability of the installation of the trigger device and the stability of the control cabinet.

[0042] In summary, the present application includes at least one of the following beneficial technical effects:

[0043] 1. The opening and closing of the cabinet door is recognized by the trigger device, so that the interior of the cabinet is illuminated by the lighting device when the cabinet door is opened, and the lighting of the lighting device is turned off when the cabinet door is closed;

[0044] 2. The light intensity inside the cabinet is identified by the photosensitive device, so that the lighting device is activated for lighting when the cabinet door is opened and the light inside the cabinet is weak;

[0045] 3. The photosensitive device is self-locked by the self-locking device, thereby reducing the increase in light intensity in the cabinet when the lighting device is started, causing the lighting device to be turned off, and then causing the lighting device to turn on and off frequently. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 It is a structural schematic diagram of an electrical automation control cabinet in an embodiment of the present application.

[0047] Figure 2 yes Figure 1 An enlarged schematic diagram of part A of the trigger device.

[0048] Figure 3 It is the circuit schematic diagram of the control cabinet.

[0049] Figure 4 This is the circuit schematic of the power module.

[0050] Explanation of the reference numerals: 1. cabinet body; 2. cabinet door; 3. trigger device; 4. control device; 5. lighting device; 6. mounting slot; 7. photosensitive device; 8. logic device; 9. photosensitive module; 10. reference module; 11. comparison module; 12. adjustment unit; 13. fixing unit; 14. self-locking device; 15. switch module; 16. execution module; 17. detection device; 18. backup lighting device; 19. power supply device; 20. protection module; 21. rectifier module; 22. transformer module; 23. limit plate; 24. sliding groove; 25. limit protrusion; 26. limit groove. DETAILED DESCRIPTION

[0051] The following is combined with Figure 1-4 This application is described in further detail.

[0052] Reference Figure 1 and Figure 2 The embodiment of the present application discloses an electric automation control cabinet, comprising a cabinet body 1, a trigger device 3 and a cabinet door 2 hinged on the cabinet body 1, the trigger device 3 is arranged on a side of the cabinet body 1 close to the cabinet door 2, the trigger device 3 is used to detect the opening and closing state of the cabinet door 2, a mounting groove 6 for installing the trigger device 3 is provided on the side of the cabinet body 1 close to the trigger device 3, the mounting groove 6 is connected to the outside world on the side close to the cabinet door 2 to facilitate the sliding installation of the trigger device 3, a limiting piece 23 for fixing the trigger device 3 is symmetrically arranged on the side of the cabinet body 1 close to the trigger device 3, a sliding groove 24 for the limiting piece 23 to slide and limit is provided on the trigger device 3, a limiting protrusion 25 for limiting the trigger device 3 in the mounting groove 6 is provided on the side of the cabinet body 1 close to the trigger device 3, the limiting protrusion 25 is located in the sliding groove 24, and a limiting groove 26 for the limiting protrusion 25 to cooperate with is provided on the trigger device 3.

[0053] Reference Figure 3 , also includes a power supply device 19 for power supply, the power supply device 19 includes a protection module 20, a rectifier module 21 and a transformer module 22, the protection module 20 includes a switch QF and a fuse FR, the switch QF adopts a three-pole three-throw switch, the protection module 20 is used to receive a three-phase power supply and send a protection signal, the rectifier module 21 includes a rectifier, the rectifier is connected to the protection module 20 to receive the protection signal and rectify the protection signal to form a two-phase DC rectified signal, the transformer module 22 includes a transformer B1, the transformer module 22 is connected to the rectifier module 21 to receive the rectified signal and step down the voltage to form a voltage signal for use by the mainboard.

[0054] One end of the switch QF is connected to the three-phase power supply, the other end of the switch QF is connected to one end of the fuse FR, the other end of the fuse FR is connected to the input end of the rectifier, the output end of the rectifier is connected to the input end of the transformer B1, and the output end of the transformer B1 outputs a voltage signal.

[0055] Reference Figure 4 , further comprising a photosensitive device 7, a self-locking device 14, a logic device 8, a control device 4, a lighting device 5, a detection device 17 and a backup lighting device 18. In this embodiment, the trigger device 3, the photosensitive device 7, the self-locking device 14, the logic device 8, the control device 4, the lighting device 5, the detection device 17, the backup lighting device 18 and the power supply device 19 are integrated into a main board. The photosensitive device 7 is used to detect the light intensity in the cabinet 1, the logic device 8 is used to determine the opening and closing of the lighting device 5 according to the information obtained by the trigger device 3 and the photosensitive device 7, the control device 4 controls the power-on circuit of the lighting device 5 and the backup lighting device 18 according to the judgment of the logic device 8, the lighting device 5 and the backup lighting device 18 are both arranged in the cabinet 1 and used for lighting, the detection device 17 is used to detect whether the lighting device 5 forms a power-on circuit, and controls the opening and closing of the backup lighting device 18 according to the judgment result, and the self-locking device 14 is used to form a self-locking after the lighting device 5 or the backup lighting device 18 is started to reduce the situation where the lighting device 5 or the backup lighting device 18 is frequently turned on and off due to the photosensitive device 7.

[0056] Reference Figure 4 The trigger device 3 is used to detect the opening and closing state of the cabinet door 2 and convert it into a trigger signal. The photosensitive device 7 is used to detect the physical quantity of the light intensity in the cabinet body 1 and convert it into a photosensitive signal. The self-locking device 14 is connected to the trigger device 3 and the photosensitive device 7 to receive the trigger signal and the photosensitive signal and respond to the photosensitive signal to output a self-locking signal. The logic device 8 is connected to the trigger device 3 and the self-locking device 14 to receive the trigger signal and the photosensitive signal and output a logic signal. The control device 4 is connected to the logic device 8 to receive the logic signal and output a control signal. The lighting device 5 is connected to the control device 4 to receive the control signal and respond to the control signal to control the power-on circuit of the lighting device 5 and the backup lighting device 18. The detection device 17 is used to detect the power-on circuit of the lighting device 5 and convert it into a detection signal. The backup lighting device 18 is connected to the detection device 17 to receive the detection signal and respond to the detection signal to control the opening and closing of the backup lighting device 18.

[0057] The trigger device 3 includes a switch SW. In this embodiment, the switch SW is a micro switch. When the cabinet door 2 is closed, the switch SW is in an open state, and when the cabinet door 2 is opened, the switch SW is in a closed state. One end of the switch SW is connected to a power source.

[0058] The photosensitive device 7 includes a photosensitive module 9, a reference module 10 and a comparison module 11. The photosensitive module 9 includes a photoresistor RG and a resistor R1. The photoresistor RG adopts a negative coefficient photoresistor. The reference module 10 includes an adjustment unit 12 and a fixed unit 13. The adjustment unit 12 includes an adjustable resistor R2, and the fixed resistor includes a resistor R3 and a resistor R4. The comparison module 11 includes a comparator N1 of model LM324.

[0059] One end of the photoresistor RG is connected to the power supply, the other end of the photoresistor is connected to the resistor R1 and then to the negative input terminal of the comparator N1, the other end of the resistor R1 is connected to the ground GND, one end of the adjustable resistor R2 is connected to the power supply, the other end of the adjustable resistor R2 is connected to one end of the resistor R3 and then to one end of the resistor R4, the other end of the resistor R3 is connected to the ground GND, and the other end of the resistor R4 is connected to the positive input terminal of the comparator N1.

[0060] The self-locking device 14 includes a switch module 15, an execution module 16 and a resistor R5. The switch module 15 includes a transistor Q1, which is an NPN transistor of model 9013. The execution module 16 includes a relay KM1 and a normally open contact KM1-1. The relay KM1 is an electromagnetic relay of model JQX-13F.

[0061] The logic device 8 includes a logic gate N2, and the logic gate N2 is an AND gate of model 7408.

[0062] The other end of the switch SW is connected to one end of the relay KM1 and then to an input end of the logic gate N2. The other end of the relay KM1 is connected to the collector of the transistor Q1 and then to one end of the normally open contact KM1-1. The output end of the comparator N1 is connected to the base of the transistor Q1. The emitter of the transistor Q1 is connected to the other end of the normally open contact KM1-1 and then to one end of the resistor R5 and then to the other input end of the logic gate N2. The other end of the resistor R5 is connected to the ground GND.

[0063] The control device 4 includes a relay KM2 and a transistor Q2. The relay KM2 is a double-pole double-throw electromagnetic relay of model JQX-62F-2Z, and the transistor Q2 is a NPN transistor of model 9013.

[0064] One end of the relay KM2 is connected to the power supply, the other end of the relay KM2 is connected to the collector of the transistor Q2, the output end of the logic gate N2 is connected to the base of the transistor Q2, and the emitter of the transistor Q2 is connected to the ground GND.

[0065] The lighting device 5 includes a normally open contact KM2-1, a light emitting diode L1 and a resistor R6, the detection device 17 includes a transistor Q3 and a resistor R7, the transistor Q3 is a PNP transistor of model 9014, and the backup lighting device 18 includes a normally open contact KM2-2, a light emitting diode L2 and a resistor R7.

[0066] One end of the normally open contact KM2-1 is connected to the power supply, the other end of the normally open contact KM2-1 is connected to the anode of the light-emitting diode L1, the cathode of the light-emitting diode L1 is connected to one end of the resistor R6 and then to the collector of the transistor Q3, the other end of the resistor R6 is connected to the ground GND, one end of the normally open contact KM2-2 is connected to the power supply, the other end of the normally open contact KM2-2 is connected to the anode of the light-emitting diode L2, the cathode of the light-emitting diode L1 is connected to the emitter of the transistor Q3, the collector of the transistor Q3 is connected to one end of the resistor R7, and the other end of the resistor R7 is connected to the ground GND.

[0067] Working process:

[0068] When the cabinet door 2 is opened and the light intensity in the cabinet 1 is less than a preset reference value, the photosensitive device 7 outputs a high-level photosensitive signal, the trigger device 3 outputs a high-level trigger signal, the self-locking device 14 receives the photosensitive signal and the trigger signal to form self-locking and maintain the output of a high-level self-locking signal, the logic device 8 receives the trigger signal and the self-locking signal and outputs a high-level logic signal, and the control device 4 receives the logic signal and controls the lighting device 5 for lighting.

[0069] When the cabinet door 2 is opened and the light intensity in the cabinet body 1 is greater than a preset reference value, the photosensitive device 7 outputs a low-level photosensitive signal, the trigger device 3 outputs a high-level trigger signal, the self-locking device 14 receives the photosensitive signal and the trigger signal without forming self-locking and outputs a low-level self-locking signal, the logic device 8 receives the trigger signal and the self-locking signal and outputs a low-level logic signal, and the control device 4 receives the logic signal and controls the lighting device 5 not to illuminate.

[0070] When the cabinet door 2 is closed, the trigger device 3 outputs a low-level trigger signal, the self-locking device 14 receives the trigger signal but does not self-lock and outputs a low-level self-locking signal, the logic device 8 receives the trigger signal and the self-locking signal and outputs a low-level logic signal, and the control device 4 receives the logic signal and controls the lighting device 5 not to illuminate.

[0071] The above are all preferred embodiments of the present application, and are not intended to limit the self-locking scope of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the self-locking scope of the present application.

Claims

1. An electrical automation control cabinet, comprising a cabinet body (1) and a cabinet door (2) hinged to the cabinet body (1), characterized in that: It also comprises a trigger device (3), a control device (4) and a lighting device (5), wherein the trigger device (3) is arranged on a side of the cabinet (1) close to the cabinet door (2), and a mounting groove (6) for mounting the trigger device (3) is symmetrically provided on the side of the cabinet (1) close to the trigger device (3), and the lighting device (5) is arranged in the cabinet (1) and is used for lighting; The trigger device (3) is used to identify the opening and closing state of the cabinet door (2) and convert it into a trigger signal, the control device (4) is connected to the trigger device (3) to receive the trigger signal and output a control signal, and the lighting device (5) is connected to the control device (4) to receive the control signal and respond to the control signal to control the opening and closing of the lighting device (5); When the cabinet door (2) is opened, the trigger device (3) outputs a high-level trigger signal, and the control device (4) receives the high-level trigger signal and controls the lighting device (5) to illuminate; when the cabinet door (2) is closed, the trigger device (3) outputs a low-level trigger signal, and the control device (4) receives the low-level trigger signal and controls the lighting device (5) not to illuminate.

2. An electrical automation control cabinet according to claim 1, characterized in that: It also includes a photosensitive device (7) and a logic device (8); The light sensing device (7) is used to identify the light level inside the cabinet (1) and output a light sensing signal, and the logic device (8) is connected to the light sensing device (7) and the trigger device (3) to receive the light sensing signal and the trigger signal and output a logic signal to the control device (4); When the trigger device (3) outputs a high-level trigger signal and the light sensing device (7) outputs a low-level light sensing signal, the logic device (8) receives the low-level light sensing signal and the high-level trigger signal and outputs a low-level logic signal, and the control device (4) receives the low-level logic signal and controls the lighting device (5) not to illuminate; When the trigger device (3) outputs a high-level trigger signal and the light sensing device (7) outputs a high-level light sensing signal, the logic device (8) receives the high-level light sensing signal and the high-level trigger signal and outputs a high-level logic signal, and the control device (4) receives the high-level logic signal and controls the lighting device (5) to illuminate; When the trigger device (3) outputs a low-level trigger signal, the logic device (8) receives the low-level trigger signal and outputs a low-level logic signal, and the control device (4) receives the low-level logic signal and controls the lighting device (5) not to illuminate.

3. An electrical automation control cabinet according to claim 2, characterized in that: The light sensing device (7) comprises a light sensing module (9), a reference module (10) and a comparison module (11); The photosensitive module (9) is used to identify the physical quantity of light intensity in the cabinet (1) and convert it into a photosensitive signal, the reference module (10) is used to provide a reference signal, and the comparison module (11) is connected to the photosensitive module (9) and the reference module (10) to receive the photosensitive signal and the reference signal and output a photosensitive signal; When the photosensitive signal is greater than the reference signal, the photosensitive module (9) outputs a high-level photosensitive signal, and the comparison module (11) outputs a low-level photosensitive signal; when the photosensitive signal is less than the reference signal, the photosensitive module (9) outputs a low-level photosensitive signal, and the comparison module (11) outputs a high-level photosensitive signal to the logic device (8).

4. An electrical automation control cabinet according to claim 3, characterized in that: The reference module (10) comprises an adjusting unit (12) and a fixing unit (13), wherein the adjusting unit (12) is used to adjust the magnitude of the reference signal.

5. The electrical automation control cabinet according to claim 3, characterized in that: It also includes a self-locking device (14) for maintaining the lighting device (5) in continuous illumination; The self-locking device (14) is connected to the comparison module (11) and the trigger device (3) to receive the comparison signal and the trigger signal and output the self-locking signal, and the logic device (8) is connected to the self-locking device (14) to receive the self-locking signal and output the logic signal; When the self-locking device (14) receives a high-level light-sensing signal and a high-level trigger signal at the same time, the self-locking device (14) continuously outputs a high-level self-locking signal to the logic device (8); when the self-locking device (14) receives a low-level trigger signal, the self-locking device (14) switches to output a low-level self-locking signal to the logic device (8); The logic device (8) receives a high-level self-locking signal and a high-level trigger signal and outputs a high-level logic signal. The logic device (8) receives a high-level self-locking signal and a low-level trigger signal and outputs a low-level logic signal.

6. An electrical automation control cabinet according to claim 5, characterized in that: The self-locking device (14) comprises a switch module (15) and an execution module (16); The switch module (15) is connected to the comparison module (11) to receive the light-sensing signal and output a switch signal, and the execution module (16) is connected to the switch module (15) to receive the switch signal and output a self-locking signal to the logic device (8); When the trigger device (3) outputs a high-level trigger signal and the comparison module (11) outputs a high-level light-sensitive signal, the switch module (15) receives the high-level light-sensitive signal and outputs a high-level switch signal, the execution module (16) receives the high-level switch signal and outputs a high-level self-locking signal to the logic device (8), and when the light level inside the cabinet (1) increases to the point where the comparison module (11) outputs a low-level light-sensitive signal, the switch module (15) receives the low-level light-sensitive signal, the execution module (16) receives the low-level switch signal and outputs a high-level self-locking signal to the logic device (8).

7. The electrical automation control cabinet according to claim 1, characterized in that: It also includes a detection device (17) and a backup lighting device (18); The detection device (17) is used to detect the power circuit of the lighting device (5) and convert it into a detection signal. The backup lighting device (18) is connected to the detection device (17) to receive the detection signal and respond to the detection signal to control the start and stop of the backup lighting device (18). The backup lighting device (18) is connected to the control device (4) to receive the control signal and respond to the control signal to control the power supply circuit of the backup lighting device (18). When the lighting device (5) forms a power-on circuit and the backup lighting device (18) forms a power-on circuit, the detection device (17) sends a high-level detection signal, the backup lighting device (18) receives the high-level detection signal and controls the backup lighting device (18) not to illuminate; when the lighting device (5) does not form a power-on circuit and the backup lighting device (18) forms a power-on circuit, the detection device (17) sends a low-level detection signal, the backup lighting device (18) receives the low-level detection signal and controls the backup lighting device (18) to illuminate.

8. The electrical automation control cabinet according to claim 1, characterized in that: It also includes a power supply device (19) for power supply, wherein the power supply device (19) includes a protection module (20), a rectification module (21) and a voltage transformation module (22); The protection module (20) is connected to a three-phase power supply and outputs a protection signal, the rectification module (21) is connected to the protection module (20) and rectifies and outputs a rectified signal, and the voltage conversion module (22) is connected to the rectification module (21) to receive the rectified signal and step down the output voltage signal to supply power to the circuit.

9. The electrical automation control cabinet according to claim 1, characterized in that: The side of the installation groove (6) close to the cabinet door (2) is connected to the outside, and the side of the cabinet body (1) close to the trigger device (3) is symmetrically provided with a limit plate (23) for fixing the trigger device (3), and the trigger device (3) is provided with a sliding groove (24) for the limit plate (23) to slide.

10. An electrical automation control cabinet according to claim 9, characterized in that: A limiting protrusion (25) for limiting the trigger device (3) in the installation groove (6) is provided on one side of the cabinet (1) close to the trigger device (3); the limiting protrusion (25) is located in the installation groove (6); and a limiting groove (26) for the limiting protrusion (25) to press against is provided on the trigger device (3).

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