A switch cabinet state indicator

Abstract

The utility model relates to a switch cabinet state indicating instrument belongs to switch cabinet indicating instrument technical field, this switch cabinet state indicating instrument, include: set up in the indicating instrument outside switch cabinet, one side of switch cabinet is hinged with the cabinet door, indicate detection mechanism for to switch cabinet inside static electricity and the cabinet door closed state carry out detection and indicate the indicate detection mechanism set up in one side of cabinet door, wherein, the indicate detection mechanism includes fixed mounting in the cabinet door surface indication panel, in use, inductive component is used for gathering and identifying the static field signal in the switch cabinet inside, can accurate determination switch cabinet inside live body's real state, avoid the misjudgment caused by the adjacent cabinet induction or environmental electromagnetic interference, the detection component sets up in the joint part of cabinet door and switch cabinet, is used for real -time detection cabinet door's closed sealed state, ensures that the cabinet door keeps good closure when live operation, prevents the operator to open the door or the outside humidity to enter the cabinet.

Description

Technical Field

[0001] This utility model relates to the field of switch cabinet indicator technology, and in particular to a switch cabinet status indicator. Background Technology

[0002] Switchgear is an important device in a power system used to control and protect electrical equipment. It typically integrates high-voltage components such as circuit breakers, disconnectors, grounding switches, and busbars. To facilitate operators' monitoring of the equipment's operating status, switchgear is generally equipped with status indicators to display information such as whether the cabinet is energized, the open / closed status of switches, and the closure status of doors.

[0003] However, in actual use, most existing indicators determine whether the equipment is energized by voltage sampling or capacitive sensing. These indicators are easily affected by factors such as neighboring cabinet induction, electromagnetic interference, and power frequency harmonics, which can lead to false lighting or false extinguishing. This can cause operators to misjudge the equipment status and pose safety hazards. Utility Model Content

[0004] Therefore, it is necessary to provide a switch cabinet status indicator to address the problem that most existing indicators determine whether the equipment is energized by voltage sampling or electromagnetic induction during actual use. This is easily affected by factors such as induction from neighboring cabinets, electromagnetic interference, and power frequency harmonics, which can lead to false lighting or false extinguishing, causing operators to misjudge the equipment status and posing safety hazards.

[0005] A switch cabinet status indicator includes: a switch cabinet disposed outside the indicator, wherein a cabinet door is hinged to one side of the switch cabinet; an indication detection mechanism for detecting and indicating the static electricity inside the switch cabinet and the closed state of the cabinet door, wherein the indication detection mechanism is disposed on one side of the cabinet door; wherein the indication detection mechanism includes an indication panel fixedly installed on the surface of the cabinet door, a sensing component is disposed on the side of the indication panel near the switch cabinet, and a detection component is disposed between the switch cabinet and the indication panel.

[0006] The sensing component includes an identification module disposed on one side of the indicator panel. The identification module is located inside the switch cabinet. A sensing rod is fixedly installed on one side of the identification module, and a sensing surface is fixedly installed on the other end of the sensing rod. An electric field sampling block is fixedly installed inside the sensing surface.

[0007] The sensing surface is set to a semi-circular arc shape, and the electric field sampling block is set to a circular ring shape.

[0008] A fixing frame is fixedly installed on one side of the indicator panel. The fixing frame is located on one side of the recognition module. The fixing frame is set in an L-shape, and the recognition module is located on top of the fixing frame.

[0009] The identification module has multiple slots on the side near the fixed frame, and multiple card blocks are fixedly installed on the surface of the fixed frame. Each of the multiple slots engages with a corresponding card block.

[0010] The card slot is C-shaped, and the shape of the card block is adapted to the card slot.

[0011] The detection component includes a rubber ring fixedly installed on one side of the indicator panel, and an airbag ring fixedly installed on the inner wall of the switch cabinet, with the rubber ring and the airbag ring abutting against each other.

[0012] A pressure sensor is fixedly installed inside the switch cabinet, and the detection end of the pressure sensor is connected to the inside of the airbag ring.

[0013] Beneficial effects 1. During use, the sensing component is used to collect and identify the electrostatic field signal inside the switch cabinet. By judging the amplitude and waveform characteristics of the electric field signal, the true state of the charged body inside the switch cabinet can be accurately determined, avoiding misjudgment caused by induction from neighboring cabinets or environmental electromagnetic interference. At the same time, the detection component is set at the junction of the cabinet door and the switch cabinet to detect the closing and sealing status of the cabinet door in real time, ensuring that the cabinet door remains well closed when energized, preventing operators from accidentally opening the door or external moisture from entering the cabinet, thereby achieving accurate monitoring of the sealing status of the cabinet door. 2. By setting a mutual clamping structure between the indicator panel and the switch cabinet, when the cabinet door is closed, the rubber ring will squeeze the airbag ring, causing the air pressure inside the airbag ring to rise; when the cabinet door is not fully closed or is in a partially closed state, the air pressure inside the airbag ring cannot reach the preset threshold, which indicates that the cabinet door is not pressed tightly. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the main structure of this utility model; Figure 2 This is a schematic diagram of the indicating and detection mechanism of this utility model; Figure 3 This is a schematic diagram of the identification module structure of this utility model; Figure 4 This is a schematic diagram of the fixed frame structure of this utility model; Figure 5 This is a schematic diagram of the detection component structure of this utility model.

[0016] Figure label: 100. Switch cabinet; 200. Cabinet door; 300. Indicator detection mechanism; 310. Indicator panel; 320. Sensing component; 321. Identification module; 322. Sensing rod; 323. Sensing surface; 324. Electric field sampling block; 325. Fixing frame; 326. Slot; 327. Card block; 330. Detection component; 331. Rubber ring; 332. Airbag ring; 333. Air pressure sensor. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0018] The following is combined Figures 1-5 This invention describes the switch cabinet status indicator.

[0019] In one embodiment, a switch cabinet status indicator includes: a switch cabinet 100 disposed outside the indicator, with a cabinet door 200 hinged to one side of the switch cabinet 100; and an indicator detection mechanism 300 disposed on one side of the cabinet door 200 for detecting and indicating the static electricity inside the switch cabinet 100 and the closed state of the cabinet door 200. The indicator detection mechanism 300 includes an indicator panel 310 fixedly installed on the surface of the cabinet door 200, a sensing component 320 disposed on the side of the indicator panel 310 near the switch cabinet 100, and a detection component 330 disposed between the switch cabinet 100 and the indicator panel 310.

[0020] In this embodiment, during use, the sensing component 320 is used to collect and identify the electrostatic field signal inside the switch cabinet 100. By judging the amplitude and waveform characteristics of the electric field signal, the true state of the charged body inside the switch cabinet 100 can be accurately determined, avoiding misjudgments caused by induction from neighboring cabinets or environmental electromagnetic interference, thus improving the accuracy and safety of live detection. Simultaneously, the detection component 330 is located at the junction of the cabinet door 200 and the switch cabinet 100, used to detect the closing and sealing status of the cabinet door 200 in real time. When the cabinet door 200 is in a partially ajar or not fully closed state, the detection component 330 can output an abnormal signal to ensure that the cabinet door 200 remains properly closed during live operation, preventing operators from accidentally opening the door or external moisture from entering the cabinet, thereby achieving accurate monitoring of the sealing status of the cabinet door 200. It should be noted that existing traditional switchgear 100 status indicators typically include basic components such as an indicator panel 310, a control circuit board, indicator lights, buttons, connection terminals, and a live display module. A sensing component 320 is added to the inner side of the indicator panel 310 to collect the electrostatic field signal inside the switchgear 100. A detection component 330 is installed between the indicator panel 310 and the cabinet body to detect the closed and sealed state of the cabinet door 200. Because the sensing component 320 is small and lightweight, its sensing surface 323 forms only a very thin gap with the cabinet door 200, which will not affect the normal opening, closing, and locking actions of the cabinet door 200. The detection component 330 adopts a flexible sealing cavity or a micro-pressure sensing structure, maintaining an elastic fit with the contact surface of the cabinet door 200, without changing the door closing distance, and without interfering with the operation of the original limit switches, interlocking mechanisms, and live display module.

[0021] like Figure 2 , Figure 3 and Figure 4 As shown, the sensing component 320 includes an identification module 321 disposed on one side of the indicator panel 310. The identification module 321 is located inside the switch cabinet 100. A sensing rod 322 is fixedly installed on one side of the identification module 321, and a sensing surface 323 is fixedly installed on the other end of the sensing rod 322. An electric field sampling block 324 is fixedly installed inside the sensing surface 323.

[0022] In this embodiment, the electrostatic field signal inside the switch cabinet 100 is collected in real time by the sensing surface 323. The electric field sampling block 324 transmits the detected electric field waveform signal to the identification module 321. The identification module 321 intelligently identifies the energized state according to the amplitude and fluctuation characteristics of the electric field signal. It can effectively distinguish between the real energized signal and the sensing or external interference signal of the adjacent cabinet, avoid misjudgment, and improve the accuracy and stability of the energized indication. It should be noted that the identification module 321 is used to process and identify the electric field signal transmitted by the electric field sampling block 324. It includes a signal acquisition unit, a filtering unit, a feature extraction unit, and a judgment control unit. The identification module 321 adopts a micro circuit board structure and is fixedly installed on the inside of the indicator panel 310. It is electrically connected to the electric field sampling block 324 through a shielded wire.

[0023] The sensing surface 323 is set to a semi-circular arc shape, and the electric field sampling block 324 is set to a circular ring shape.

[0024] In this embodiment, by designing the sensing surface 323 as a semi-circular arc structure, it forms an enveloping electric field receiving area inside the switch cabinet 100, which can more comprehensively collect the electrostatic field distribution signal around the busbar and charged body. The electric field sampling block 324 adopts a ring-shaped arrangement structure, which can uniformly receive changes in electric field intensity in a 360° direction, avoiding signal distortion or detection blind spots caused by directional limitations, thereby improving the sensitivity and stability of detection. The sensing surface 323 and the electric field sampling block 324 are isolated by an insulating layer, which can prevent electrical breakdown and reduce parasitic capacitance effects, ensuring accurate and reliable signal acquisition.

[0025] A fixing frame 325 is fixedly installed on one side of the indicator panel 310. The fixing frame 325 is located on one side of the recognition module 321. The fixing frame 325 is set in an L-shape, and the recognition module 321 is located on top of the fixing frame 325.

[0026] In this embodiment, by setting an L-shaped fixing frame 325 inside the indicator panel 310, the identification module 321 can be stably installed on the inner wall of the indicator panel 310 in a suspended manner, which not only avoids direct contact between the identification module 321 and the cabinet, but also reserves installation space for the arrangement of the sensing rod 322 and the sensing surface 323.

[0027] The identification module 321 has multiple slots 326 on the side near the fixed frame 325. Multiple blocks 327 are fixedly installed on the surface of the fixed frame 325, and the multiple slots 326 are engaged with the corresponding blocks 327.

[0028] In this embodiment, by setting a cooperative structure between the slot 326 and the block 327, the identification module 321 can be quickly fixed to the fixed frame 325 in a snap-fit ​​manner, forming a stable positioning connection. This snap-fit ​​structure not only enables modular assembly but also facilitates subsequent disassembly and maintenance. When the identification module 321 malfunctions or needs to be replaced, it can be removed simply by sliding along the direction of the block 327 without the need for additional tools, greatly improving maintenance convenience.

[0029] The card slot 326 is designed in a C-shape, and the shape of the card block 327 is adapted to the card slot 326.

[0030] In this embodiment, by designing the card slot 326 as a C-shaped structure with covering limiting edges on both sides, a three-way clamping constraint can be formed on the card block 327, thereby preventing the identification module 321 from shaking in the front-back or left-right directions after installation. After the card block 327 and the card slot 326 are in contact with each other, the pre-tightening force is generated by its own elastic deformation, so that the identification module 321 is stably positioned on the fixed frame 325.

[0031] like Figure 2 , Figure 3 and Figure 5As shown, the detection component 330 includes a rubber ring 331 fixedly installed on one side of the indicator panel 310, and an airbag ring 332 fixedly installed on the inner wall of the switch cabinet 100, with the rubber ring 331 and the airbag ring 332 abutting against each other.

[0032] In this embodiment, by setting a mutual abutting structure between the indicator panel 310 and the switch cabinet 100, the rubber ring 331 will squeeze the airbag ring 332 when the cabinet door 200 is closed, causing the air pressure inside the airbag ring 332 to increase; when the cabinet door 200 is not completely closed or is in a partially closed state, the air pressure inside the airbag ring 332 cannot reach the preset threshold, which indicates that the cabinet door 200 is not pressed tightly.

[0033] A pressure sensor 333 is fixedly installed inside the switch cabinet 100, and the detection end of the pressure sensor 333 is connected to the inside of the airbag ring 332.

[0034] In this embodiment, by connecting the air pressure sensor 333 to the internal cavity of the airbag ring 332, the air pressure change inside the airbag ring 332 can be monitored in real time during the closing process of the cabinet door 200. When the cabinet door 200 is fully closed and pressed tight, the air pressure inside the airbag ring 332 rises to the set range, and the air pressure sensor 333 outputs a normal signal; when the cabinet door 200 is partially closed, not properly sealed, or not properly locked, the air pressure cannot rise steadily, and after the air pressure sensor 333 detects an abnormal signal, it will transmit it to the indicator panel 310 through the control circuit board to provide an alarm prompt. It should be noted that the pressure sensor 333 is used to detect changes in air pressure inside the airbag ring 332. Internally, it includes a pressure-sensing diaphragm, a signal conversion unit, and an output control unit. The pressure sensor 333 can be a miniature capacitive or piezoresistive structure. Its housing is encapsulated with insulating protective material and connected to the airbag ring 332 via a sealed connector to prevent gas leakage. This sensor possesses high sensitivity and anti-interference capabilities, and can operate stably in the high humidity and high electromagnetic environment of the switch cabinet 100, showing minimal drift even after long-term use.

[0035] Working Principle: When the switchgear 100 is in operation, the sensing component 320 first collects the electric field signal inside the cabinet in real time. The electric field sampling block 324 transmits the detected electrostatic field waveform signal to the identification module 321. The identification module 321 processes the signal through its internal signal acquisition, filtering, and feature extraction unit, and determines whether there is a real energized state inside the cabinet based on the electric field amplitude and waveform characteristics. The identification result is then output to the indicator panel 310 for display of the energized state. When the identification result indicates that the switchgear 100 is energized, the corresponding indicator light illuminates to remind the operator that the current operating state is high voltage. At the same time, the detection component 330 begins to monitor the closing status of the cabinet door 200. When the cabinet door 200 is closed, the rubber ring 331 compresses the airbag ring 332, increasing the internal air pressure. The air pressure sensor 333 detects the air pressure value and sends it back to the control circuit board. If the air pressure value is within the normal range, it indicates that the cabinet door 200 is fully closed. If insufficient air pressure is detected, it is determined that the cabinet door 200 is partially ajar or not properly sealed, and an alarm signal is issued on the indicator panel 310. Through the coordinated operation of electric field detection and air pressure detection, the device can simultaneously achieve live identification and door sealing monitoring. When a dangerous state of liveness and unclosed door occurs, an audible and visual warning can be automatically triggered, thereby effectively preventing misoperation and ensuring the safe operation of the equipment.

[0036] It should be noted that the switch cabinet, identification module, and barometric pressure sensor mentioned above are all devices with relatively mature existing technologies. The specific models can be selected according to actual needs. At the same time, the switch cabinet, identification module, and barometric pressure sensor can be powered by the built-in power supply or by the mains power. The specific power supply method should be selected according to the situation, and will not be elaborated here.

[0037] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A switchgear status indicator, characterized in that, include: A switch cabinet (100) is located outside the indicator, and a cabinet door (200) is hinged to one side of the switch cabinet (100). An indicator detection mechanism (300) is provided on one side of the cabinet door (200) for detecting and indicating the static electricity inside the switch cabinet (100) and the closed state of the cabinet door (200). The indicator detection mechanism (300) includes an indicator panel (310) fixedly installed on the surface of the cabinet door (200). A sensing component (320) is provided on the side of the indicator panel (310) near the switch cabinet (100). A detection component (330) is provided between the switch cabinet (100) and the indicator panel (310).

2. The switchgear status indicator according to claim 1, characterized in that, The sensing component (320) includes an identification module (321) disposed on one side of the indicator panel (310). The identification module (321) is located inside the switch cabinet (100). A sensing rod (322) is fixedly installed on one side of the identification module (321). A sensing surface (323) is fixedly installed on the other end of the sensing rod (322). An electric field sampling block (324) is fixedly installed inside the sensing surface (323).

3. The switchgear status indicator according to claim 2, characterized in that, The sensing surface (323) is set to a semi-circular arc shape, and the electric field sampling block (324) is set to a circular ring shape.

4. The switchgear status indicator according to claim 2, characterized in that, A fixing frame (325) is fixedly installed on one side of the indicator panel (310). The fixing frame (325) is located on one side of the recognition module (321). The fixing frame (325) is set in an L-shape. The recognition module (321) is located on the top of the fixing frame (325).

5. The switchgear status indicator according to claim 4, characterized in that, The identification module (321) has multiple slots (326) on one side near the fixed frame (325), and multiple blocks (327) are fixedly installed on the surface of the fixed frame (325). The multiple slots (326) are engaged with the corresponding blocks (327).

6. The switchgear status indicator according to claim 5, characterized in that, The card slot (326) is C-shaped, and the shape of the card block (327) is adapted to the card slot (326).

7. The switchgear status indicator according to claim 1, characterized in that, The detection component (330) includes a rubber ring (331) fixedly installed on one side of the indicator panel (310), and an airbag ring (332) fixedly installed on the inner wall of the switch cabinet (100), with the rubber ring (331) and the airbag ring (332) abutting against each other.

8. The switchgear status indicator according to claim 7, characterized in that, A pressure sensor (333) is fixedly installed inside the switch cabinet (100), and the detection end of the pressure sensor (333) is connected to the inside of the airbag ring (332).

Images