Power distribution cabinet with fire early warning

Abstract

The utility model discloses a kind of power distribution cabinet with fire early warning, including cabinet, the inside one side of cabinet is provided with annular groove;Still including with the shape matching of annular groove Arc sensing array, the Arc sensing array engages and is fixed in the annular groove, to make the Arc sensing array adhere cabinet inner wall and form encircling type monitoring layout.The utility model is adapted by annular groove and Arc sensing array, makes sensing array adhere cabinet wall installation, make full use of small space, eliminate monitoring blind area;Arc sensing array integrates pyrolysis particle sensor and micro -voc sensor, realizes early hidden danger identification;Through dismounting structure, Arc sensing array can be quickly disassembled, improve maintenance efficiency;Multiple Arc sensing array is distributed along height direction, realizes stereoscopic monitoring.

Description

Technical Field

[0001] This utility model relates to the field of electrical equipment technology, and in particular to a power distribution cabinet with fire early warning. Background Technology

[0002] A fire-prevention-equipped distribution cabinet is an intelligent safety monitoring device designed specifically for distribution cabinets. It monitors key risk factors that could cause fires inside the distribution cabinet in real time, determines the risk level through data fusion analysis, and proactively issues warning signals such as audible and visual alarms and remote notifications before a fire occurs, giving maintenance personnel time to respond to emergencies and thus preventing or curbing the occurrence and spread of fires in distribution cabinets.

[0003] Traditional fire early warning systems for distribution cabinets rely on temperature and smoke sensors, which suffer from problems such as difficulty in identifying early pyrolysis hazards (e.g., volatile organic compounds from insulating materials), high false alarm rates in dusty environments, and difficulty adapting to the confined space within the cabinet. This can easily lead to delayed warnings and subsequent fires. Furthermore, traditional sensor installation methods often occupy significant cabinet space, have blind spots, and are inconvenient for maintenance and disassembly.

[0004] Therefore, those skilled in the art have provided a power distribution cabinet with fire early warning to solve the problems mentioned in the background art. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies and provide a power distribution cabinet with fire early warning capabilities. By fitting an arc-shaped sensor array with an annular groove on the inner wall of the cabinet, a surround monitoring layout that fits snugly against the cabinet wall is achieved, effectively utilizing limited space and eliminating monitoring blind spots. Simultaneously, it integrates a pyrolysis particle sensor and a miniature VOC sensor, enabling early identification of potential insulation pyrolysis hazards. A disassembly structure is included for easy and rapid maintenance. Furthermore, the multi-layered sensor layout and control unit enhance the accuracy and timeliness of early warnings.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A power distribution cabinet with fire early warning capability includes a cabinet body, a protective door rotatably connected to the front side of the cabinet body, and an annular groove provided on one side of the interior of the cabinet body; it also includes an arc-shaped sensor array that matches the shape of the annular groove, the arc-shaped sensor array being snapped and fixed within the annular groove so that the arc-shaped sensor array fits against the inner wall of the cabinet body to form a surrounding monitoring layout.

[0008] Furthermore, the curvature of the annular groove is consistent with the curvature of the inner wall of the cabinet, and the curvature of the arc-shaped sensor array is adapted to the curvature of the annular groove, so that the arc-shaped sensor array is completely embedded in the annular groove.

[0009] Furthermore, the arc-shaped sensor array integrates a pyrolysis particle sensor and a miniature VOC sensor to collect the concentration of pyrolysis particles and the VOC content inside the cabinet.

[0010] Furthermore, the upper and lower sides of the arc-shaped sensor array are fixedly connected to fixing blocks, and the cabinet is fixedly connected to a fixing seat; the fixing seat is provided with a detachable structure for detachable connection with the fixing blocks.

[0011] Furthermore, the disassembly structure includes a compression groove located inside the fixed base. A compression spring is provided inside the compression groove. One end of the compression spring is fixedly connected to the fixed base, and the other end of the compression spring is fixedly connected to a limit ring. A locking rod is fixedly connected to the inner side of the limit ring. One end of the fixed block is provided with a through groove, and the locking rod engages and is fixedly fixed with the through groove.

[0012] Furthermore, a slot is provided on one side of the fixing base, the slot is connected through the locking rod, and the slot engages and fixes with the fixing block for initial positioning of the fixing block.

[0013] Furthermore, multiple arc-shaped sensor arrays are provided, distributed at intervals along the height direction of the cabinet, and the arc-shaped sensor arrays are electrically connected to each other through flexible circuit boards.

[0014] Furthermore, a control cabinet is fixedly connected inside the cabinet, and the control cabinet is equipped with an MCU, a wireless transmission unit, a processor, and a protection unit. The MCU is electrically connected to the arc-shaped sensor array and is used to receive detection signals. The processor is connected to the MCU and is used to analyze and judge the signals. The wireless transmission unit is connected to the processor and is used to push early warning information to the remote monitoring platform. The protection unit is connected to the processor and is used to perform power-off protection operations when the risk is too high.

[0015] Furthermore, an early warning module is provided on the top of the cabinet. The early warning module includes a strobe light and a buzzer. The bottom of the strobe light and one side of the buzzer are fixedly connected to the cabinet.

[0016] Furthermore, a handle and a latch are provided on one side of the protective door, and the protective door is fixed to the cabinet by the latch; the protective door is also provided with an observation window for observing the internal condition of the cabinet.

[0017] This utility model has the following beneficial effects:

[0018] This utility model proposes a power distribution cabinet with fire early warning. By setting an annular groove and an arc-shaped sensor array that matches the shape of the annular groove, the sensor array can be installed close to the inner wall of the cabinet, making full use of the narrow space inside the cabinet. At the same time, it forms a surrounding monitoring layout, effectively covering corners that are difficult for traditional sensors to reach, eliminating monitoring blind spots in the power distribution cabinet, and improving the detection accuracy of fire hazards in the power distribution cabinet.

[0019] By integrating a pyrolysis particle sensor and a miniature VOC sensor inside the arc-shaped sensor array, the concentration of pyrolysis particles and VOC content inside the cabinet can be collected in real time, enabling early identification of potential hazards and reducing the probability of danger. Combined with an MCU, processor and wireless transmission unit, early warning information can be quickly pushed to a remote monitoring platform, improving the speed of early warning response.

[0020] By setting up a disassembly structure, utilizing the engagement of the lever and the through slot of the fixing block, as well as the elastic force provided by the compression spring, the arc-shaped sensor array can be quickly disassembled and assembled, facilitating maintenance personnel operation and improving maintenance efficiency.

[0021] By setting up multiple arc-shaped sensor arrays spaced apart along the height direction, comprehensive monitoring of the internal three-dimensional space of the cabinet is achieved, further eliminating blind spots in the height direction.

[0022] By setting up a protection unit, automatic power-off protection can be implemented when the risk is too high, which can effectively prevent the occurrence or spread of fire and improve the safety of the equipment. Attached Figure Description

[0023] Figure 1 This is a perspective view of a power distribution cabinet with fire early warning system proposed in this utility model.

[0024] Figure 2 This is a cross-sectional view of a power distribution cabinet with fire early warning system proposed in this utility model.

[0025] Figure 3 This is a sectional view of the disassembled structure of a power distribution cabinet with fire early warning system proposed in this utility model.

[0026] Figure 4 for Figure 3 Enlarged view of point A in the middle.

[0027] Explanation of reference numerals in the attached figures:

[0028] 1. Cabinet; 2. Protective door; 3. Handrail; 4. Lock; 5. Mounting base; 6. Disassembly structure; 601. Slot; 602. Compression slot; 603. Compression spring; 604. Limit ring; 605. Locking rod; 7. Control cabinet; 8. Early warning module; 801. Strobe light; 802. Buzzer; 9. Arc-shaped sensor array; 901. Pyrolysis particle sensor; 902. Miniature VOC sensor; 10. Annular groove; 11. MCU; 12. Wireless transmission unit; 13. Processor; 14. Protection unit; 15. Mounting block; 16. Through groove. Detailed Implementation

[0029] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of specific embodiments. Obviously, the described specific embodiments are only a part of the specific embodiments of the present invention, and not all of them. Based on the specific embodiments of the present invention, all other specific embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] Reference Figure 1-4 This utility model provides a specific implementation method:

[0031] A power distribution cabinet with fire early warning capability includes a cabinet body 1, with a protective door 2 rotatably connected to the front of the cabinet body 1. An annular groove 10, an arc-shaped recess, is provided on one side of the interior of the cabinet body 1, extending along the inner wall of the cabinet body 1. It also includes an arc-shaped sensor array 9 that matches the shape of the annular groove 10. The arc-shaped sensor array 9 is snapped and fixed within the annular groove 10, thus allowing the arc-shaped sensor array 9 to conform to the inner wall of the cabinet body 1, forming a surround monitoring layout. This layout can make full use of the limited space inside the cabinet, avoid sensors occupying too much valuable space, and achieve coverage without blind spots, improving monitoring effectiveness.

[0032] Specifically, the curvature of the annular groove 10 is consistent with the curvature of the inner wall of the cabinet 1, and the curvature of the arc-shaped sensor array 9 is adapted to the curvature of the annular groove 10, so that the arc-shaped sensor array 9 can be completely embedded in the annular groove 10 to achieve a tight fit and avoid loosening.

[0033] Furthermore, the arc-shaped sensor array 9 integrates a pyrolysis particle sensor 901 and a miniature VOC sensor 902. The pyrolysis particle sensor 901 is used to detect pyrolysis particles generated by the aging or overheating of insulating materials, while the miniature VOC sensor 902 is used to capture volatile organic compounds emitted by electrical component failures, enabling early detection of potential hazards.

[0034] For ease of installation and maintenance, fixing blocks 15 are fixedly connected to the upper and lower sides of the arc-shaped sensor array 9, and fixing seats 5 are fixedly connected inside the cabinet 1. A disassembly structure 6 is provided inside the fixing seat 5 for detachable connection with the fixing blocks 15. Specifically, the disassembly structure 6 includes a compression groove 602 located inside the fixing seat 5. A compression spring 603 is provided inside the compression groove 602. One end of the compression spring 603 is fixedly connected to the fixing seat 5, and the other end is fixedly connected to a limit ring 604. A locking rod 605 is fixedly connected to the inner side of the limit ring 604. A through groove 16 is provided at one end of the fixing block 15, and the locking rod 605 engages and is fixedly engaged with the through groove 16. A locking slot 601 is also provided on one side of the fixing seat 5. The locking slot 601 is connected through to the locking rod 605 and engages and is fixed with the fixing block 15 for initial positioning of the fixing block 15.

[0035] When it is necessary to disassemble the arc-shaped sensor array 9, simply pull the lever 605 to compress the spring 603. The lever 605 will disengage from the through slot 16, allowing the fixing block 15 to slide out of the slot 601, thus removing the arc-shaped sensor array 9. During installation, the operation is reversed; the lever 605 automatically engages with the through slot 16 under the action of the spring 603, achieving a locking mechanism.

[0036] To further improve the monitoring coverage, multiple arc-shaped sensor arrays 9 can be set up and distributed at intervals along the height direction of the cabinet 1. Each arc-shaped sensor array 9 is electrically connected through a flexible circuit board to realize comprehensive monitoring of the internal three-dimensional space of the power distribution cabinet and eliminate monitoring blind spots in the height direction.

[0037] Inside cabinet 1, a control cabinet 7 is also fixedly connected. The control cabinet 7 houses an MCU 11, a wireless transmission unit 12, a processor 13, and a protection unit 14. Its working principle and connection relationships are as follows:

[0038] The arc-shaped sensor array 9 integrates a pyrolysis particle sensor 901 and a miniature VOC sensor 902 to collect real-time data on the concentration of pyrolysis particles and the content of volatile organic compounds within the cabinet 1. The detected analog or digital signals are transmitted to the MCU 11 via signal lines. The MCU 11, acting as a data acquisition unit, performs analog-to-digital conversion, filtering, and preliminary processing on the received multi-channel signals before sending the processed data to the processor 13. The processor 13 has a built-in dual-parameter fusion algorithm that combines pyrolysis particle concentration and VOC content for comprehensive judgment, identifying early fire hazards such as aging insulation materials and poor contact. When the processor 13 determines that the detected value exceeds a preset warning threshold, it simultaneously triggers two actions: one drives the warning module 8 to activate, causing the strobe light 801 to emit a high-frequency red flashing light and the buzzer 802 to emit a high-decibel alarm sound, achieving on-site audible and visual alarms to remind maintenance personnel to handle the situation promptly; the other drives the wireless transmission unit 12 to push the warning information (including location, parameter values, risk level, etc.) to the remote monitoring platform via 4G, WiFi, or Ethernet, enabling remote alarm and recording. If the processor 13 determines that the risk level continues to rise and reaches the set power-off threshold, it sends a power-off command to the protection unit 14. The protection unit 14 immediately cuts off the power supply to the main circuit of the distribution cabinet to prevent the fire from occurring or spreading. The above modules are electrically connected through the circuit board wiring inside the control cabinet 7 to ensure stable and reliable signal transmission.

[0039] A warning module 8 is installed on the top of the cabinet 1. The warning module 8 includes a strobe light 801 and a buzzer 802. The bottom of the strobe light 801 and one side of the buzzer 802 are fixedly connected to the cabinet 1. When the processor 13 detects an abnormality, it triggers the strobe light 801 to emit a high-frequency red flashing light and the buzzer 802 to emit a high-decibel alarm sound, reminding on-site personnel to quickly detect the danger.

[0040] One side of the protective door 2 is equipped with a handle 3 and a latch 4. The protective door 2 is fixed to the cabinet 1 by the latch 4, which facilitates opening and locking and improves the safety of the internal equipment. The protective door 2 is also equipped with an observation window, which is used to observe the internal status of the distribution cabinet without opening the protective door, which is convenient for daily inspection.

[0041] Working Principle: When this fire alarm distribution cabinet is in operation, multiple arc-shaped sensor arrays 9 are spaced apart along the height direction and attached to the inner wall of the cabinet 1. Pyrolysis particle sensors 901 and miniature VOC sensors 902 monitor the concentration of pyrolysis particles and VOCs inside the cabinet in real time. The collected data is transmitted to the control cabinet 7. After analysis by the MCU 11 and processor 13, if an anomaly is detected, a remote alarm is triggered via the wireless transmission unit 12, simultaneously triggering a strobe light 801 and a buzzer 802 for on-site alarm. If the risk is too high, the protection unit 14 automatically performs power-off protection. During maintenance, the arc-shaped sensor arrays 9 can be quickly removed by pulling the lever 605, making operation convenient.

[0042] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing specific embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A power distribution cabinet with fire early warning capability, comprising a cabinet body (1), characterized in that: An annular groove (10) is provided on one side of the interior of the cabinet (1); it also includes an arc-shaped sensor array (9) that matches the shape of the annular groove (10). The arc-shaped sensor array (9) is snapped and fixed in the annular groove (10) so that the arc-shaped sensor array (9) fits against the inner wall of the cabinet (1) to form a surrounding monitoring layout.

2. The distribution cabinet with fire early warning function according to claim 1, characterized in that: The curvature of the annular groove (10) is consistent with the curvature of the inner wall of the cabinet (1), and the curvature of the arc-shaped sensor array (9) is adapted to the curvature of the annular groove (10), so that the arc-shaped sensor array (9) is completely embedded in the annular groove (10).

3. The distribution cabinet with fire early warning function according to claim 1, characterized in that: The arc-shaped sensor array (9) integrates a pyrolysis particle sensor (901) and a miniature VOC sensor (902) for collecting the concentration of pyrolysis particles and VOC content inside the cabinet.

4. The distribution cabinet with fire early warning system according to claim 1, characterized in that: The upper and lower sides of the arc-shaped sensor array (9) are fixedly connected to fixing blocks (15), and the cabinet (1) is fixedly connected to a fixing seat (5); the fixing seat (5) is provided with a disassembly structure (6) for detachable connection with the fixing block (15).

5. The distribution cabinet with fire early warning system according to claim 4, characterized in that: The disassembly structure (6) includes a compression groove (602), which is located inside the fixed base (5). A compression spring (603) is provided inside the compression groove (602). One end of the compression spring (603) is fixedly connected to the fixed base (5), and the other end of the compression spring (603) is fixedly connected to a limit ring (604). A locking rod (605) is fixedly connected to the inner side of the limit ring (604). One end of the fixed block (15) is provided with a through groove (16), and the locking rod (605) engages and is fixed with the through groove (16).

6. The power distribution cabinet with fire early warning function according to claim 5, characterized in that: A slot (601) is provided on one side of the fixing seat (5). The slot (601) is connected to the locking rod (605). The slot (601) engages with the fixing block (15) for initial positioning of the fixing block (15).

7. The distribution cabinet with fire early warning function according to claim 1, characterized in that: Multiple arc-shaped sensor arrays (9) are provided and are distributed at intervals along the height direction of the cabinet (1). Each arc-shaped sensor array (9) is electrically connected to the other via a flexible circuit board.

8. The distribution cabinet with fire early warning function according to claim 1, characterized in that: The cabinet (1) is fixedly connected to a control cabinet (7). The control cabinet (7) is equipped with an MCU (11), a wireless transmission unit (12), a processor (13), and a protection unit (14). The MCU (11) is electrically connected to the arc-shaped sensor array (9) and is used to receive detection signals. The processor (13) is connected to the MCU (11) and is used to analyze and judge the signals. The wireless transmission unit (12) is connected to the processor (13) and is used to push the early warning information to the remote monitoring platform. The protection unit (14) is connected to the processor (13) and is used to perform power-off protection operation when the risk is too high.

9. The distribution cabinet with fire early warning function according to claim 1, characterized in that: The top of the cabinet (1) is provided with an early warning module (8), which includes a strobe light (801) and a buzzer (802). The bottom of the strobe light (801) and one side of the buzzer (802) are fixedly connected to the cabinet (1).

10. The power distribution cabinet with fire early warning function according to claim 1, characterized in that: The front side of the cabinet (1) is rotatably connected to a protective door (2). A handle (3) and a latch (4) are provided on one side of the protective door (2). The protective door (2) is fixed to the cabinet (1) by the latch (4). An observation window is also provided on the protective door (2) for observing the internal state of the cabinet (1).

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