An armored removable AC metal-enclosed switch cabinet

Abstract

The present invention relates to the technical field of switch cabinets, and more specifically, it relates to an armored removable AC metal-enclosed switch cabinet, comprising a cabinet body, a trolley room is arranged in the cabinet body, a traveling mechanism is arranged in the trolley room, a circuit breaker is arranged on the traveling mechanism, a plurality of temperature sensors are arranged in the trolley room, the plurality of temperature sensors are used to monitor the heating conditions of multiple positions of the circuit breaker one by one, a plurality of spotlights are arranged in the trolley room, the number of the spotlights is consistent with the number of the temperature sensors, the plurality of spotlights are directed one by one to the monitoring positions of the plurality of temperature sensors, a controller is connected between the plurality of spotlights and the plurality of temperature sensors, and when the temperature sensor detects that the circuit breaker is overheated, the spotlights in the same group are lit; a cabinet door is arranged on the front of the trolley room, and the cabinet door is provided with glass. The armored removable AC metal-enclosed switch cabinet of the present invention has the effects of simple operation, high efficiency and obvious abnormal prompt during offline inspection.

Description

Technical Field

[0001] The invention relates to the technical field of switch cabinets, in particular to an armored removable AC metal-enclosed switch cabinet. Background Art

[0002] Armored removable AC metal-enclosed switchgear is a common high-voltage switchgear, mainly used for power distribution and control in power systems. Armored means that the switchgear shell mainly adopts a metal-enclosed structure to prevent external impact or foreign objects from intruding, and provide high-strength protection for internal components. Removable means that the key components of the switchgear (such as circuit breakers) can be removed and inserted from the cabinet through guide rails or push-pull mechanisms without disassembling the entire cabinet, thereby improving the flexibility of equipment operation and maintenance efficiency.

[0003] At present, when workers conduct offline inspections on the circuit breakers of armored removable AC metal-enclosed switchgear, if they find that the instrument room of the switchgear issues a warning due to an abnormal circuit breaker, they will first disconnect the circuit breaker outside the cabinet, then open the cabinet door, use instruments to find the abnormal location, and then formulate a maintenance plan. In the offline inspection process, there are situations where the operation is cumbersome, the efficiency is low, and the abnormal prompts are not obvious. Therefore, there are still some problems to be solved in the offline inspection of armored removable AC metal-enclosed switchgear. Summary of the invention

[0004] In order to solve the problems of cumbersome operation, low efficiency and unclear abnormal prompts in the offline inspection process, the present application provides an armored removable AC metal enclosed switch cabinet.

[0005] The present invention provides an armored removable AC metal-enclosed switch cabinet adopts the following technical solution: An armored removable AC metal-enclosed switch cabinet comprises a cabinet body, a trolley room is arranged in the cabinet body, a travel mechanism is arranged in the trolley room, a circuit breaker is arranged on the travel mechanism, a plurality of temperature sensors are arranged in the trolley room, the plurality of temperature sensors are used to monitor the heating conditions of a plurality of positions of the circuit breaker one by one, a plurality of spotlights are arranged in the trolley room, the number of the spotlights is consistent with the number of the temperature sensors, the plurality of spotlights are directed one by one to the monitoring positions of the plurality of temperature sensors, a controller is connected between the plurality of spotlights and the plurality of temperature sensors, and when the temperature sensor detects that the circuit breaker is overheated, the spotlights in the same group are lit; a cabinet door is arranged on the front of the trolley room, and the cabinet door is provided with glass.

[0006] Preferably, the glass of the cabinet door is liquid crystal dimming glass, and the liquid crystal dimming glass and the spotlight are connected to the same circuit and controlled by the same circuit switch.

[0007] Preferably, the travel mechanism comprises a base, a slider, a guide rail and a mounting plate, the base comprises a support rod and a screw rod, the number of the support rods is two, the two support rods are arranged at intervals on the bottom surface of the trolley chamber along the travel direction of the circuit breaker, the screw rod is rotatably connected between the two support rods, the guide rail is horizontally erected between the tops of the two support rods, the mounting plate is slidably arranged on the top of the guide rail along the travel direction of the circuit breaker, the mounting plate is used to install the circuit breaker, the slider is located below the guide rail and is fixedly connected to the mounting plate, the slider is threadedly connected to the screw rod, one end of the screw rod close to the cabinet door passes through the support rod and is connected to a connecting rod, and the connecting rod is a polygonal rod; the cabinet door is provided with an operating hole, and when the cabinet door is closed, the operating hole of the cabinet door is horizontally aligned with the connecting rod, and the travel mechanism also includes a handle, one end of the handle is provided with a socket, and after one end of the handle passes through the operating hole, the socket is plugged into the connecting rod.

[0008] Preferably, the spotlight is mounted on the mounting plate, and the temperature sensor is arranged on the inner wall of the trolley chamber.

[0009] Preferably, a diagonal brace is hidden at the bottom of the mounting plate, and the diagonal brace is hinged to the outside of the bottom of the mounting plate. A support hole is provided at the bottom of the front of the switch cabinet, and the support hole is used for inserting the diagonal brace.

[0010] Preferably, a speed reducer is provided between the traveling mechanism and the inner wall of the trolley chamber, and in the final stage of the traveling mechanism controlling the pushing of the circuit breaker, the speed reducer increases the pushing resistance of the circuit breaker.

[0011] Preferably, the reducer is a spring.

[0012] Preferably, the spotlight uses red light.

[0013] Preferably, a backup power supply is provided in the trolley room, and the spotlight is connected to the backup power supply.

[0014] The beneficial effects of the present invention are: If the temperature sensor detects overheating at a critical position of the circuit breaker, the spotlight will be illuminated at the abnormally hot position of the circuit breaker, and part of the light will be emitted from the glass of the cabinet door. At this time, when workers conduct offline inspections of the circuit breakers of the armored removable AC metal-enclosed switch cabinet, they can quickly find the switch cabinet with abnormal circuit breakers, and quickly determine the abnormal position of the circuit breaker through the glass of the cabinet door. A maintenance plan can be formulated without opening the cabinet door. Ultimately, the offline inspection process achieves the effect of simple operation, high efficiency and obvious abnormal prompts. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of the internal structure of the switch cabinet in an embodiment of the present application; Figure 2 It is a structural schematic diagram of a circuit breaker and a travel mechanism of a switch cabinet in an embodiment of the present application; Figure 3 It is a schematic diagram of the structure in which the circuit breaker is pulled out from the switch cabinet in the embodiment of the present application.

[0016] Explanation of the accompanying reference numerals: 1. Cabinet body; 11. Instrument room; 12. Cart room; 13. Busbar room; 14. Cable room; 2. Cabinet door; 31. Handle; 32. Support rod; 33. Screw; 34. Slider; 35. Guide rail; 36. Mounting plate; 37. Connecting rod; 38. Spring; 39. Diagonal support rod; 4. Temperature sensor; 5. Spotlight; 6. Liquid crystal dimming glass; 7. Circuit breaker. DETAILED DESCRIPTION

[0017] The following will be combined Figure 1-Figure 3 The present invention is further illustrated by the following embodiments.

[0018] This embodiment discloses an armored removable AC metal-enclosed switch cabinet.

[0019] Reference Figures 1 to 3 The armored removable AC metal-enclosed switchgear includes a cabinet 1, in which an instrument room 11, a trolley room 12, a busbar room 13 and a cable room 14 are arranged. The busbar contact is arranged in the busbar room 13, and the electrical components such as the outgoing contact, the current transformer, the line arrester, the grounding switch, and the zero-sequence current transformer are arranged in the cable room 14. The electrical instrument is arranged in the instrument room 11. A travel mechanism is arranged at the bottom of the trolley room 12, and a circuit breaker 7 is arranged on the travel mechanism. The travel mechanism controls the circuit breaker 7 to slide relative to the busbar room 13 and the cable room 14. A cabinet door 2 is arranged on the front of the trolley room 12, and an operation hole is opened in the cabinet door 2. The operation hole is used for workers to insert a handle 31 into the travel mechanism, so that the workers can control the circuit breaker 7 to travel when the cabinet door 2 is closed.

[0020] A plurality of temperature sensors 4 are provided in the trolley room 12, and the plurality of temperature sensors 4 are used to monitor the heating conditions of the plurality of key positions of the circuit breaker 7 one by one to avoid continuous overheating. A plurality of spotlights 5 are provided in the trolley room 12, and the number of the spotlights 5 is consistent with the number of the temperature sensors 4. The plurality of spotlights 5 are directed toward the monitoring positions of the plurality of temperature sensors 4 one by one, forming a combination of a plurality of groups of temperature sensors 4 + spotlights 5. A controller is connected between the plurality of spotlights 5 and the plurality of temperature sensors 4, and when the temperature sensor 4 detects that the circuit breaker 7 is overheated, the spotlights 5 in the same group light up. Furthermore, the cabinet door 2 of the trolley room 12 is provided with glass. Through the above arrangement, if the temperature sensor 4 detects that the key position of the circuit breaker 7 is overheated, the spotlight 5 will illuminate the abnormally hot position of the circuit breaker 7, and at the same time, part of the light will be emitted from the glass of the cabinet door 2. At this time, when the workers conduct offline inspections on the circuit breakers 7 of the armored removable AC metal-enclosed switch cabinet, they can quickly find the switch cabinet with abnormal circuit breakers 7, and can quickly determine the abnormal position of the circuit breaker 7 through the glass of the cabinet door 2. A maintenance plan can be formulated without opening the cabinet door 2. Ultimately, in the offline inspection process, the effects of simple operation, high efficiency and obvious abnormal prompts are achieved.

[0021] In some embodiments, the spotlight 5 uses red light to improve recognition. In addition, the temperature sensor 4 is also connected to the instrument of the instrument room 11 through the controller. When abnormal temperature is detected, the controller also controls the instrument of the instrument room 11 to issue a reminder to improve the reminder effect.

[0022] If the glass is always transparent, it will be easy for sunlight to irradiate into the switch cabinet during the day. The temperature of the sunlight will accelerate the temperature rise of the circuit breaker 7 in the cabinet body 1. The ultraviolet radiation of the sunlight will accelerate the decomposition, embrittlement and deformation of the non-metallic materials (such as plastic shell, cable protection sleeve, sealing ring) of the circuit breaker 7, and finally shorten the service life of the circuit breaker 7. In order to avoid the above situation, the glass of the cabinet door 2 is liquid crystal dimming glass 6. The liquid crystal dimming glass 6 has a liquid crystal film inside. When the voltage is applied, the liquid crystal molecules are arranged in order and the glass becomes transparent. When the power is off, the liquid crystal molecules are arranged in disorder and the glass appears opaque or frosted. The liquid crystal dimming glass 6 and the spotlight 5 are connected to the same circuit and controlled by the same circuit switch, so that the liquid crystal dimming glass 6 will become transparent only when the spotlight 5 is turned on, which is convenient for the staff to find abnormalities and judge the abnormal position through the glass. When the spotlight 5 is turned off, the liquid crystal dimming glass 6 is powered off synchronously to prevent the daytime sunlight from easily irradiating into the cabinet body 1, which has a better protection effect on the circuit breaker 7 and prolongs the service life of the circuit breaker 7.

[0023] The travel mechanism includes a base, a slider 34, a guide rail 35 and a mounting plate 36, wherein the base includes a support rod 32 and a screw rod 33, the number of the support rod 32 is two, the two support rods 32 are arranged at intervals on the bottom surface of the trolley chamber 12 along the travel direction of the circuit breaker 7, and the screw rod 33 is rotatably connected between the two support rods 32. The guide rail 35 is fixedly and horizontally erected between the tops of the two support rods 32, the mounting plate 36 is slidably arranged on the top of the guide rail 35 along the travel direction of the circuit breaker 7, and the mounting plate 36 is used to install the circuit breaker 7, the slider 34 is located below the guide rail 35 and is fixedly connected to the mounting plate 36, and the slider 34 is threadedly connected to the screw rod 33, so that when the circuit breaker 7 is installed on the mounting plate 36, the circuit breaker 7 can be controlled to slide relative to the busbar chamber 13 and the cable chamber 14 by controlling the rotation of the screw rod 33, so as to realize the travel control of the circuit breaker 7. Furthermore, one end of the screw rod 33 near the cabinet door 2 passes through the support rod 32 and is connected to a connecting rod 37, which is a polygonal rod. When the cabinet door 2 is closed, the operating hole of the cabinet door 2 is horizontally aligned with the connecting rod 37. A plug hole is provided at one end of the handle 31, and the cross section of the plug hole corresponds to the cross section of the connecting rod 37. After one end of the handle 31 passes through the operating hole, the plug hole is plugged into the connecting rod 37. At this time, the worker can control the circuit breaker 7 outside the cabinet door 2 to improve safety.

[0024] The spotlight 5 is mounted on the mounting plate 36, and the temperature sensor 4 is arranged on the inner wall of the trolley room 12. The purpose is that when the temperature sensor 4 detects an abnormality and the worker makes a maintenance plan, the spotlight 5 can be pulled out along with the circuit breaker 7. Then, by keeping the spotlight 5 at the abnormal position illuminated and switching the color of the lamp tube, brightness support can be provided for the worker when performing maintenance. Since the manual opening and closing and color adjustment of the spotlight 5 are existing technologies, they will not be described in detail here. Furthermore, a backup power supply is provided in the trolley room 12, and the spotlight 5 is connected to the backup power supply to ensure that the spotlight 5 can still provide brightness support for the worker's maintenance after being pulled out along with the circuit breaker 7. The temperature sensor 4 is arranged on the inner wall of the trolley room 12, which can prevent the temperature sensor 4 from deviating from the monitoring position due to the vibration during travel, thereby ensuring the accuracy of the monitoring results.

[0025] A reducer is provided between the traveling mechanism and the inner side wall of the trolley chamber 12. At the end stage of the traveling mechanism controlling the push-in of the circuit breaker 7, the reducer increases the push-in resistance of the circuit breaker 7, realizes the push-in deceleration of the circuit breaker 7, and avoids the plug of the circuit breaker 7 from violently colliding with the interface between the busbar chamber 13 and the cable chamber 14. In this embodiment, the reducer is a spring 38, which is horizontally connected to the inner side wall of the trolley chamber 12, and the spring 38 is located at the end of the traveling path of the mounting plate 36 of the traveling mechanism. At the end stage of the push-in of the circuit breaker 7, the mounting plate 36 compresses the spring 38, increases the push-in resistance, and finally realizes the deceleration.

[0026] A diagonal support rod 39 is hidden at the bottom of the mounting plate 36, and the diagonal support rod 39 is hinged to the outer side of the bottom of the mounting plate 36. In addition, a support hole is provided at the bottom of the front side of the switch cabinet. When the circuit breaker 7 is pulled out with the mounting plate 36, the worker can swing out the diagonal support rod 39 at the bottom of the mounting plate 36 and support it on the support hole on the front side of the switch cabinet, thereby supporting the mounting plate 36 and the circuit breaker 7, making it convenient for the worker to repair the circuit breaker 7 after it is pulled out.

[0027] The above are all preferred embodiments of the present invention, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An armored removable AC metal-enclosed switch cabinet, characterized in that: The invention comprises a cabinet (1), wherein a trolley room (12) is arranged in the cabinet (1), a travel mechanism is arranged in the trolley room (12), a circuit breaker (7) is arranged on the travel mechanism, a plurality of temperature sensors (4) are arranged in the trolley room (12), the plurality of temperature sensors (4) are used to monitor the heating conditions of a plurality of positions of the circuit breaker (7) one by one, a plurality of spotlights (5) are arranged in the trolley room (12), the number of the spotlights (5) is the same as the number of the temperature sensors (4), the plurality of spotlights (5) are directed one by one towards the monitoring positions of the plurality of temperature sensors (4), a controller is connected between the plurality of spotlights (5) and the plurality of temperature sensors (4), and when the temperature sensor (4) detects that the circuit breaker (7) is overheated, the spotlights (5) in the same group light up; a cabinet door (2) is arranged on the front of the trolley room (12), and the cabinet door (2) is provided with glass.

2. The armored removable AC metal-enclosed switch cabinet according to claim 1 is characterized in that: The glass of the cabinet door (2) is liquid crystal dimming glass (6), and the liquid crystal dimming glass (6) and the spotlight (5) are connected to the same circuit and are controlled by the same circuit switch.

3. The armored removable AC metal-enclosed switch cabinet according to claim 2 is characterized in that: The travel mechanism comprises a base, a slider (34), a guide rail (35) and a mounting plate (36); the base comprises a support rod (32) and a screw rod (33); the number of the support rods (32) is two, the two support rods (32) are arranged at intervals on the bottom surface of the trolley chamber (12) along the travel direction of the circuit breaker (7); the screw rod (33) is rotatably connected between the two support rods (32); the guide rail (35) is horizontally erected between the tops of the two support rods (32); the mounting plate (36) is slidably arranged on the top of the guide rail (35) along the travel direction of the circuit breaker (7); the mounting plate (36) is used to install the circuit breaker (7); the slider (34) ) is located below the guide rail (35) and is fixedly connected to the mounting plate (36); the slider (34) is threadedly connected to the screw rod (33); one end of the screw rod (33) close to the cabinet door (2) passes through the support rod (32) and is connected to a connecting rod (37); the connecting rod (37) is a polygonal rod; the cabinet door (2) is provided with an operating hole; when the cabinet door (2) is closed, the operating hole of the cabinet door (2) is horizontally aligned with the connecting rod (37); the travel mechanism also includes a handle (31); one end of the handle (31) is provided with a plug hole; after one end of the handle (31) passes through the operating hole, the plug hole is plugged into the connecting rod (37).

4. The armored removable AC metal-enclosed switch cabinet according to claim 3 is characterized in that: The spotlight (5) is mounted on the mounting plate (36), and the temperature sensor (4) is arranged on the inner wall of the trolley chamber (12).

5. The armored removable AC metal-enclosed switch cabinet according to claim 4 is characterized in that: A diagonal support rod (39) is hidden at the bottom of the mounting plate (36), and the diagonal support rod (39) is hinged to the outside of the bottom of the mounting plate (36). A support hole is provided at the bottom of the front of the switch cabinet, and the support hole is used for the diagonal support rod (39) to be inserted.

6. The armored removable AC metal-enclosed switch cabinet according to claim 5, characterized in that: A speed reducer is provided between the travel mechanism and the inner wall of the trolley chamber (12), and at the end stage when the travel mechanism controls the push-in of the circuit breaker (7), the speed reducer increases the push-in resistance of the circuit breaker (7).

7. The armored removable AC metal-enclosed switch cabinet according to claim 6, characterized in that: The speed reducer is a spring (38).

8. The armored removable AC metal-enclosed switch cabinet according to claim 1, characterized in that: The spotlight (5) uses red light.

9. The armored removable AC metal-enclosed switch cabinet according to claim 4, characterized in that: A backup power supply is provided in the trolley room (12), and the spotlight (5) is connected to the backup power supply.

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