Fire safety early warning device in assembly type electric cabinet

Abstract

The utility model discloses a fire safety early warning device in an assembly type electric cabinet, which belongs to the technical field of electrical safety equipment and comprises an assembly cover plate mounted at the top of the electric cabinet, a ventilation opening arranged in the middle of the assembly cover plate, a ventilation motor arranged on the inner side of the ventilation opening and an air outlet regulation and control mechanism arranged on the outer side of the ventilation opening. An air inlet regulation and control mechanism and a sensor layout mounting frame are arranged on the inner side of the assembly cover plate, and a detection device, the air inlet regulation and control mechanism, the ventilation motor and the air outlet regulation and control mechanism on the sensor layout mounting frame are all electrically connected with an early warning controller on the assembly cover plate. An assembly-type structure is adopted, and the device is directly installed on the top of the electric cabinet and is convenient to assemble. And meanwhile, an air inlet regulation and control mechanism and an air outlet regulation and control mechanism are arranged, so that the electric cabinet can be in a relatively sealed environment after a fire extinguisher in the cabinet is started when a fire occurs, and fire extinguishing is accelerated. And the sensor layout mounting rack can be used for adjusting detection devices according to actual conditions.

Description

Technical Field

[0001] This utility model relates to the field of electrical safety equipment technology, and in particular to a fire safety early warning device for prefabricated electrical cabinets. Background Technology

[0002] Fire alarm systems within electrical cabinets are crucial because they typically contain numerous electrical devices and wiring. A fire can not only damage these devices but also potentially trigger larger safety incidents. Existing technologies utilize temperature sensors, thermal imaging cameras, and smoke sensors within the cabinet for fire detection. For example, patent CN214849594U discloses a distribution cabinet with a fire alarm function, relating to the field of auxiliary devices for power distribution control. This addresses the problem of existing distribution cabinets often failing to provide fire alarms, leading to equipment burnout and malfunction. The cabinet features a top plate welded to its interior. A communication module is mounted on top of the top plate and fixed to the cabinet body via a slot. A fire and smoke sensor is electrically connected to the communication module at the bottom of the top plate. A protective block is welded to the top plate and further reinforced by a partition plate welded to the cabinet body. In existing technologies, sensors are typically assembled separately and then connected, resulting in the sensors being relatively scattered and subsequent installation and wiring being complex. Utility Model Content

[0003] The purpose of this invention is to provide a fire safety early warning device for prefabricated electrical cabinets to solve the above-mentioned technical problems.

[0004] To achieve the above objectives, this utility model provides a fire safety early warning device for a prefabricated electrical cabinet, including a prefabricated cover plate installed on the top of the electrical cabinet. A ventilation opening is provided in the middle of the prefabricated cover plate, a ventilation motor is provided inside the ventilation opening, an air outlet control mechanism is provided outside the ventilation opening, and an air inlet control mechanism and a sensor layout mounting bracket are provided inside the prefabricated cover plate. The detection device, air inlet control mechanism, ventilation motor, and air outlet control mechanism on the sensor layout mounting bracket are all electrically connected to the early warning controller on the prefabricated cover plate.

[0005] Preferably, the mounting cover has an outer bent connecting edge and an inner bent connecting edge on all four sides. The outer bent connecting edge has a first elongated hole for connecting to the cabinet body. The inner bent connecting edge has a second elongated hole for installing the sensor layout mounting bracket.

[0006] Preferably, the inner bent connecting edge is provided with a guide rib, and the air intake control mechanism includes an air intake baffle. The air intake baffle includes an air intake part, a connecting part and a guide part arranged in sequence. The air intake part has an air intake opening that is opposite to the air intake hole on the side of the electrical cabinet. The guide part is provided with a guide groove, and the guide rib is arranged in the guide groove. The top of the air intake baffle is set inside the mounting cover plate through an electric telescopic rod, and the electric telescopic rod is electrically connected to the early warning controller.

[0007] Preferably, the detection devices include a temperature sensor, a smoke sensor, and an oxygen concentration sensor, all of which are electrically connected to the early warning controller.

[0008] Preferably, the air outlet control mechanism includes a protective cover with an inner air outlet on the side, a sealing ring on the outer side of the protective cover, an outer air outlet on the side of the sealing ring, a toothed ring on the side of the sealing ring, the toothed ring meshing with a gear, the gear being mounted on the output shaft of a drive motor, the drive motor being mounted on the top of the protective cover via a connecting plate, and the drive motor being electrically connected to the early warning controller.

[0009] Preferably, the sensor layout mounting bracket includes an L-shaped mounting bracket mounted on the second elongated hole and several U-shaped mounting plates, with U-shaped extension plates provided between adjacent U-shaped mounting plates, the first U-shaped mounting plate being connected to the L-shaped mounting bracket, and the detection device being mounted on the U-shaped mounting plate.

[0010] Therefore, the above-mentioned prefabricated fire safety early warning device for electrical cabinets has the following advantages: It adopts a prefabricated structure and is directly installed on the top of the electrical cabinet, facilitating assembly. Simultaneously, it is equipped with an air inlet control mechanism and an air outlet control mechanism, which allows the electrical cabinet to be in a relatively sealed environment after the fire extinguisher inside the cabinet is activated in the event of a fire, thus accelerating fire suppression. Furthermore, the sensor layout and mounting bracket can be adjusted according to actual conditions to optimize the detection devices.

[0011] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of a fire safety early warning device for an assembled electrical cabinet according to the present invention.

[0013] Figure 2 This is a side view of a fire safety early warning device for an assembled electrical cabinet according to this utility model.

[0014] Figure 3 This is a schematic diagram of the assembly cover structure of this utility model;

[0015] Figure 4 This is a schematic diagram of the guide rib structure of this utility model.

[0016] Figure Labels

[0017] 1. Assembly cover plate; 11. Outer bent connecting edge; 12. Inner bent connecting edge; 13. First elongated hole; 14. Second elongated hole; 15. Guide rib; 2. Ventilation opening; 3. Air outlet control mechanism; 31. Protective cover; 311. Inner air outlet; 32. Sealing ring; 321. Outer air outlet; 322. Gear ring; 33. Gear; 34. Drive motor; 35. Connecting plate; 4. Air inlet control mechanism; 41. Air inlet baffle; 411. Air inlet section; 412. Connecting section; 413. Guide section; 414. Air inlet vent; 42. Electric telescopic rod; 5. Sensor layout mounting bracket; 51. L-shaped mounting bracket; 52. U-shaped mounting plate; 53. U-shaped extension plate; 6. Early warning controller; 7. Detection device. Detailed Implementation

[0018] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0019] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0020] like Figure 1 and Figure 2 As shown, a fire safety early warning device for a prefabricated electrical cabinet includes a mounting cover 1 installed on the top of the cabinet, a ventilation motor, a sensor mounting bracket 5, an air outlet control mechanism 3, a detection device 7, an air inlet control mechanism 4, and an early warning controller 6. The detection device 7, the air inlet control mechanism 4, the ventilation motor, and the air outlet control mechanism 3 on the sensor mounting bracket 5 are all electrically connected to the early warning controller 6 on the mounting cover 1. It should be noted that the early warning controller 6 is a microcontroller or single-chip microcomputer commonly used in the field, all of which are conventional components in the electrical field; its specific model is not limited here. Figure 1To clearly show the structure of the corresponding components, only a sensor layout mounting bracket 5 and an air intake control mechanism 4 are shown. Generally, the ventilation openings 2 of an electrical cabinet are located on both sides of the cabinet, so two air intake control mechanisms 4 are required.

[0021] A ventilation opening 2 is provided in the middle of the assembly cover plate 1, such as Figure 3 As shown, an air outlet control mechanism 3 is provided on the outside of the vent 2, and a ventilation motor is provided on the inside of the vent 2. When ventilation and heat dissipation are performed, the airflow passes through the air inlet of the electrical cabinet, the air inlet 414 and the vent 2 in sequence, and is discharged from the air outlet control mechanism 3.

[0022] The mounting cover 1 has outer bent connecting edges 11 and inner bent connecting edges 12 on all four sides. The outer bent connecting edges 11 have a first elongated hole 13 for connecting to the electrical cabinet body. The inner bent connecting edges 12 have a second elongated hole 14 for mounting the sensor layout mounting bracket 5. The lateral position of the sensor layout mounting bracket 5 can be adjusted according to actual needs. The sensor layout mounting bracket 5 includes an L-shaped mounting bracket 51 mounted on the second elongated hole 14 and several U-shaped mounting plates 52. U-shaped extension plates 53 are provided between adjacent U-shaped mounting plates 52. The first U-shaped mounting plate 52 is connected to the L-shaped mounting bracket 51. Detection devices 7 are mounted on the U-shaped mounting plates 52. The number of U-shaped mounting plates 52 and the size of the U-shaped extension plates 53 are set according to actual needs, so that the corresponding detection devices 7 are positioned relative to locations prone to fire. The detection devices 7 include a temperature sensor, a smoke sensor, and an oxygen concentration sensor, all of which are electrically connected to the early warning controller 6. The sensors mentioned above are all standard devices in the existing market.

[0023] The inner bent connecting edge 12 is provided with a guide rib 15, such as Figure 4 As shown, the air intake control mechanism 4 includes an air intake baffle 41. The air intake baffle 41 includes an air intake part 411, a connecting part 412, and a guide part 413 arranged in sequence. The air intake part 411 has an air intake opening 414 that is opposite to the air intake hole on the side of the electrical cabinet. The guide part 413 has a guide groove and a guide rib 15 is arranged in the guide groove. The top of the air intake baffle 41 is arranged inside the mounting cover plate 1 through an electric telescopic rod 42. The electric telescopic rod 42 is electrically connected to the early warning controller 6.

[0024] The air outlet control mechanism 3 includes a protective cover 31 with an inner air outlet 311 on the side, a sealing ring 32 on the outer side of the protective cover 31, an outer air outlet 321 on the side of the sealing ring 32, a toothed ring 322 on the side of the sealing ring 32, the toothed ring 322 meshing with a gear 33, the gear 33 being mounted on the output shaft of the drive motor 34, the drive motor 34 being mounted on the top of the protective cover 31 via a connecting plate 35, and the drive motor 34 being electrically connected to the early warning controller 6.

[0025] During normal operation, the air inlet on the side of the electrical cabinet is positioned opposite to the air inlet 414 to achieve ventilation. In the event of a fire, when the fire extinguisher inside the electrical cabinet needs to be activated, the electric telescopic rod 42 retracts, causing the air inlet on the side of the electrical cabinet to be staggered from the air inlet 414. Similarly, the drive motor 34 is activated, causing the inner air outlet 311 and the outer air outlet 321 to be staggered, thus sealing the electrical cabinet and accelerating fire extinguishing.

[0026] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the technical solution of this utility model, and these modifications or equivalent substitutions cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of this utility model.

Claims

1. A fire safety early warning device for prefabricated electrical cabinets, characterized in that: The system includes an assembly cover plate installed on top of the electrical cabinet. A ventilation opening is located in the middle of the assembly cover plate. A ventilation motor is located inside the ventilation opening. An air outlet control mechanism is located outside the ventilation opening. An air inlet control mechanism and a sensor layout mounting bracket are located inside the assembly cover plate. The detection devices, air inlet control mechanism, ventilation motor, and air outlet control mechanism on the sensor layout mounting bracket are all electrically connected to the early warning controller on the assembly cover plate.

2. The fire safety early warning device for prefabricated electrical cabinets according to claim 1, characterized in that: The mounting cover has an outer bent connecting edge and an inner bent connecting edge on all four sides. The outer bent connecting edge has a first elongated hole for connecting to the electrical cabinet body. The inner bent connecting edge has a second elongated hole for installing the sensor layout mounting bracket.

3. The fire safety early warning device for prefabricated electrical cabinets according to claim 2, characterized in that: The inner bent connecting edge is provided with a guide rib. The air intake control mechanism includes an air intake baffle. The air intake baffle includes an air intake part, a connecting part and a guide part arranged in sequence. The air intake part has an air intake opening that is opposite to the air intake hole on the side of the electrical cabinet. The guide part is provided with a guide groove, and the guide rib is set in the guide groove. The top of the air intake baffle is set on the inner side of the mounting cover plate through an electric telescopic rod. The electric telescopic rod is electrically connected to the early warning controller.

4. A fire safety early warning device for prefabricated electrical cabinets according to claim 3, characterized in that: The detection devices include a temperature sensor, a smoke sensor, and an oxygen concentration sensor, all of which are electrically connected to the early warning controller.

5. A fire safety early warning device for prefabricated electrical cabinets according to claim 4, characterized in that: The air outlet control mechanism includes a protective cover with an inner air outlet on the side, a sealing ring on the outer side of the protective cover, an outer air outlet on the side of the sealing ring, a toothed ring on the side of the sealing ring, the toothed ring meshing with a gear, the gear being mounted on the output shaft of a drive motor, the drive motor being mounted on the top of the protective cover via a connecting plate, and the drive motor being electrically connected to the early warning controller.

6. A fire safety early warning device for prefabricated electrical cabinets according to claim 5, characterized in that: The sensor mounting bracket includes an L-shaped mounting bracket mounted on the second elongated hole and several U-shaped mounting plates. U-shaped extension plates are provided between adjacent U-shaped mounting plates. The first U-shaped mounting plate is connected to the L-shaped mounting bracket, and the detection device is mounted on the U-shaped mounting plate.

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