An explosion-proof electrical apparatus

Abstract

This utility model discloses an explosion-proof electrical device, comprising: an electrical cabinet; an explosion-proof unit disposed within the electrical cabinet for explosion-proof protection of electrical components within the cabinet; a cooling component disposed on the explosion-proof unit for heat dissipation and cooling of the electrical components; and a dry powder assembly disposed on the explosion-proof unit for dry powder fire extinguishing of the electrical components. This utility model constructs a basic explosion-proof barrier for the electrical components within the cabinet through the explosion-proof unit, effectively protecting and shielding the electrical components to prevent explosions from affecting surrounding equipment. The cooling component provides targeted heat dissipation to prevent electrical components from failing due to overheating or triggering potential hazards, ensuring their continuous and stable operation. Furthermore, the dry powder assembly provides rapid fire extinguishing in the early stages of a fire, curbing the escalation of the danger, thus reducing the overall explosion risk of the electrical equipment and extending its service life.

Description

Technical Field

[0001] This utility model relates to the technical field of explosion-proof electrical equipment, and in particular to an explosion-proof electrical equipment. Background Technology

[0002] Electrical equipment is a general term for devices that consist of electrical components, circuits, and auxiliary parts, used to realize the generation, transmission, distribution, conversion, and control of electrical energy. It includes motors, switches, instruments, controllers, etc., and it converts electrical energy into other forms of energy and processes signals.

[0003] Among them, electrical cabinets, as an important component of electrical equipment, are enclosed or semi-enclosed cabinet structures that integrate various electrical components. They are mainly used to protect, fix, and organize the internal components. By rationally arranging components such as circuit breakers, contactors, and instruments, they can realize functions such as power distribution, circuit protection, and equipment control.

[0004] However, most existing electrical cabinets achieve explosion protection through a single sealed outer shell or panel, while the operating temperature inside can easily become a trigger for safety hazards in electrical equipment. Long-term high-temperature operation of components not only accelerates aging but may also cause risks such as insulation failure and electric arc sparks, which can lead to explosion accidents and pose a serious threat to the safety of surrounding equipment and personnel. Utility Model Content

[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0006] In view of the problems existing in the above-mentioned explosion-proof electrical equipment, this utility model is proposed.

[0007] Therefore, the purpose of this utility model is to provide an explosion-proof electrical device, which aims to solve the problem that "most existing electrical cabinets achieve explosion protection through a single outer shell seal or plate, but the operating temperature inside can easily become a trigger for safety hazards in electrical equipment. Long-term high-temperature operation of components not only accelerates aging, but may also cause risks such as insulation failure and electric arc sparks, which can lead to explosion accidents and pose a serious threat to the safety of surrounding equipment and personnel."

[0008] To solve the above-mentioned technical problems, this utility model provides the following technical solution: including:

[0009] Electrical cabinet;

[0010] An explosion-proof unit is installed inside an electrical cabinet and is used to provide explosion-proof protection for electrical components inside the electrical cabinet. A cooling component is installed on the explosion-proof unit and is used to dissipate heat and cool the electrical components.

[0011] A dry powder assembly is installed on the explosion-proof unit and is used to extinguish fires involving electrical components with dry powder.

[0012] As a preferred embodiment of the explosion-proof electrical equipment described in this utility model, the explosion-proof unit includes a lower protective plate, which is fixedly connected to the inner wall of one side of the electrical cabinet. A telescopic protective cover is fixedly connected to the inner wall of one side of the electrical cabinet. Support plates are fixedly connected to both sides of the telescopic protective cover. Electric push rods are fixedly connected to both sides of the inner wall of the electrical cabinet. The telescopic ends of the two electric push rods are fixedly connected to the corresponding support plates.

[0013] As a preferred embodiment of the explosion-proof electrical equipment described in this utility model, the cooling component includes two spiral groove tubes, both of which are fixedly connected through the lower protective plate and the telescopic protective cover. A radiator is fixedly connected to the bottom surface of the electrical cabinet, and a three-way valve is fixedly connected to the output end of the radiator. Both ends of the three-way valve are fixedly connected to the corresponding spiral groove tubes. Multiple air outlets are provided on the top surface of the electrical cabinet.

[0014] As a preferred embodiment of the explosion-proof electrical equipment described in this utility model, the dry powder assembly includes a strip nozzle, which is fixedly connected to the inner wall of one side of the telescopic protective cover. A dry powder box is fixedly connected to the top surface of the electrical cabinet, and a powder pump is fixedly connected to one side surface of the dry powder box. The output end of the powder pump is fixedly connected through the electrical cabinet and the telescopic protective cover, and is fixedly connected to the strip nozzle.

[0015] As a preferred embodiment of the explosion-proof electrical equipment described in this utility model, the top surface of the electrical cabinet is fixedly connected to two baffles, and each baffle is fitted with a dustproof plate.

[0016] As a preferred embodiment of the explosion-proof electrical equipment described in this utility model, the inner walls on both sides of the electrical cabinet are provided with sliding grooves, and the two trays are slidably connected in the corresponding sliding grooves.

[0017] In a preferred embodiment of the explosion-proof electrical equipment described in this utility model, a temperature sensor is fixedly connected to one side surface of the lower protective plate, and the temperature sensor is electrically connected to the radiator and the powder pump respectively.

[0018] As a preferred embodiment of the explosion-proof electrical equipment described in this utility model, two illumination lamps are fixedly connected to one side surface of the lower protective plate, and both illumination lamps are oriented towards the electrical components.

[0019] The beneficial effects of this utility model are:

[0020] The explosion-proof unit constructs a basic explosion-proof barrier for the electrical components inside the cabinet, effectively protecting and shielding them to prevent explosions from affecting surrounding equipment. The cooling component provides targeted heat dissipation to prevent electrical components from failing due to overheating or triggering potential hazards, ensuring their continuous and stable operation. Furthermore, the dry powder component responds quickly to extinguish fires in the early stages of a fire, curbing the spread of danger and reducing the overall risk of explosion of electrical equipment while extending the service life of the equipment. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0022] Figure 1 This is a schematic diagram of the overall front structure of an explosion-proof electrical device proposed in this utility model;

[0023] Figure 2 This is a side view of the overall structure of an explosion-proof electrical device proposed in this utility model;

[0024] Figure 3 This is a schematic diagram of the internal structure of the electrical cabinet proposed in this utility model;

[0025] Figure 4 This is a schematic diagram of the telescopic protective cover structure proposed in this utility model.

[0026] In the picture:

[0027] 100. Electrical cabinet; 101. Cover; 102. Dustproof panel; 103. Slide rail;

[0028] 200. Explosion-proof unit; 201. Lower protective plate; 202. Telescopic protective cover; 203. Support plate; 204. Electric push rod; 2011. Temperature sensor; 2012. Irradiation lamp;

[0029] 300. Cooling component; 301. Spiral grooved tube; 302. Radiator; 303. Three-way valve;

[0030] 400. Dry powder assembly; 401. Strip nozzle; 402. Dry powder box; 403. Powder pump. Detailed Implementation

[0031] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0032] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0033] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0034] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0035] Example 1

[0036] Reference Figures 1 to 4 This is the first embodiment of the present utility model, which provides the following achievable effects:

[0037] Electrical cabinet 100;

[0038] An explosion-proof unit 200 is installed inside the electrical cabinet 100. The explosion-proof unit 200 is used to protect the electrical components inside the electrical cabinet 100 from explosion. A cooling component 300 is installed on the explosion-proof unit 200. The cooling component 300 is used to dissipate heat and cool the electrical components.

[0039] Dry powder assembly 400 is installed on explosion-proof unit 200 and is used for dry powder fire extinguishing of electrical components.

[0040] When in use, the explosion-proof unit 200 constructs a basic explosion-proof barrier for the electrical components inside the cabinet, effectively protecting and shielding the electrical components to prevent explosions from affecting surrounding equipment. The cooling component 300 provides targeted heat dissipation to prevent electrical components from failing due to overheating or triggering potential hazards, ensuring their continuous and stable operation. Furthermore, the dry powder component 400 responds quickly to extinguish fires in the early stages of a fire, curbing the spread of danger and reducing the overall risk of explosion of electrical equipment while extending the service life of the equipment.

[0041] Example 2

[0042] Reference Figures 1 to 4This is the second embodiment of the present invention, which differs from the previous embodiment in that:

[0043] The explosion-proof unit 200 includes a lower protective plate 201, which is fixedly connected to the inner wall of one side of the electrical cabinet 100. A telescopic protective cover 202 is fixedly connected to the inner wall of one side of the electrical cabinet 100. Support plates 203 are fixedly connected to both sides of the telescopic protective cover 202. Electric push rods 204 are fixedly connected to both sides of the inner wall of the electrical cabinet 100. The telescopic ends of the two electric push rods 204 are fixedly connected to the corresponding support plates 203.

[0044] The lower shield 201 is fixed inside the cabinet to form a basic protective barrier, while the support plate 203 on the side of the telescopic protective cover 202 is pushed by the electric push rod 204, which can seal and fit with the lower shield 201, effectively shielding and protecting electrical components from explosion, and improving its protective effect.

[0045] Specifically, the cooling component 300 includes two spiral groove tubes 301, both of which are fixedly connected through the lower shield 201 and the telescopic protective cover 202. The bottom surface of the electrical cabinet 100 is fixedly connected to a radiator 302, and the output end of the radiator 302 is fixedly connected to a three-way valve 303. Both ends of the three-way valve 303 are fixedly connected to the corresponding spiral groove tubes 301. The top surface of the electrical cabinet 100 is provided with multiple air outlets.

[0046] The spiral groove tube 301 penetrates the explosion-proof unit 200, increasing the contact area with electrical components and improving heat exchange efficiency. The radiator 302, together with the three-way valve 303, realizes air cooling and diversion. The air outlet on the top surface of the electrical cabinet 100 accelerates the discharge of hot air, forming a complete heat dissipation cycle, ensuring the stable operation of electrical components and avoiding damage or explosion caused by high temperature.

[0047] Specifically, the dry powder assembly 400 includes a strip nozzle 401, which is fixedly connected to the inner wall of one side of the telescopic protective cover 202. The top surface of the electrical cabinet 100 is fixedly connected to a dry powder box 402, and a powder pump 403 is fixedly connected to one side surface of the dry powder box 402. The output end of the powder pump 403 is fixedly connected through the electrical cabinet 100 and the telescopic protective cover 202, and is fixedly connected to the strip nozzle 401.

[0048] When in use, the powder pump 403 is started in conjunction with the dry powder box 402 to quickly pressurize and deliver the dry powder to the strip nozzle 401. The strip nozzle 401 is set inside the telescopic protective cover 202 and can cover the protected area in a directional manner, so that the fire extinguishing dry powder is sprayed efficiently, providing reliable emergency protection for electrical components.

[0049] Example 3

[0050] Reference Figures 1 to 3 This is the third embodiment of the present invention, which differs from the previous embodiment in that:

[0051] The top surface of the electrical cabinet 100 is fixedly connected to two covers 101, and each cover 101 is fitted with a dustproof plate 102.

[0052] The baffle 101, together with the dustproof plate 102, can block external dust and debris from entering the electrical cabinet 100, while not affecting the heat dissipation and ventilation inside the cabinet. This ensures clean operation of the equipment, maintains heat dissipation efficiency, and extends the service life of electrical components.

[0053] Specifically, the inner walls on both sides of the electrical cabinet 100 are provided with slide grooves 103, and the two support plates 203 are slidably connected in the corresponding slide grooves 103.

[0054] The sliding engagement between the slide groove 103 and the support plate 203 provides stable guidance for the telescopic protective cover 202, ensuring that the electric push rod 204 extends and retracts linearly when driven, thus improving the accuracy of the action.

[0055] Specifically, a temperature sensor 2011 is fixedly connected to one side surface of the lower shield 201, and the temperature sensor 2011 is electrically connected to the radiator 302 and the powder pump 403 respectively.

[0056] The temperature sensor 2011 monitors the cabinet temperature in real time, linking it with the radiator 302 and powder pump 403 to achieve automatic heat dissipation in case of overheating and rapid fire suppression in case of fire, forming an intelligent protection closed loop and improving equipment safety and response efficiency. The temperature sensor 2011 provides accurate environmental data to the system by monitoring temperature changes at key points in real time. Its working principle is based on the physical characteristics of a thermistor: when the ambient temperature changes, the resistance or potential of the thermistor changes accordingly. The sensor converts this physical change into an electrical signal, which is then converted into a digital signal by an analog-to-digital converter and transmitted to the control system. When the temperature exceeds the preset threshold, the temperature sensor 2011 triggers the heat dissipation logic, activating the heat sink 302 through electrical connection, allowing air cooling to remove heat and maintain the electrical components within a safe temperature range. If the temperature continues to rise to a dangerous value, it is determined that a fire may occur, and the powder pump 403 is immediately activated to spray dry powder for fire extinguishing. This avoids the lag of manual intervention and balances energy consumption and safety requirements through a graded response strategy, significantly improving the operational reliability of the electrical cabinet 100. Commonly used models of the temperature sensor 2011 include PT100, PMC-2601-A, and ATE300M.

[0057] Specifically, two illumination lamps 2012 are fixedly connected to one side surface of the lower shield 201, and both illumination lamps 2012 are facing the electrical components.

[0058] When in use, the 2012 spotlight illuminates electrical components in a directional manner, facilitating daily inspections to observe component status and enabling quick troubleshooting in case of malfunctions, thus improving maintenance convenience. At the same time, it does not interfere with the normal operation of the equipment, enhancing its practicality.

[0059] During operation, when the electrical cabinet 100 is running, the lower shield 201 is fixed to the inner wall to form basic protection. The electric push rod 204 is activated, extending and retracting to drive the support plate 203 to slide vertically downwards along the slide groove 103, causing the telescopic protective cover 202 to extend and retract synchronously. This, in conjunction with the lower shield 201, shields and protects the electrical components. The temperature sensor 2011 monitors the cabinet temperature in real time. When the temperature rises, the temperature sensor 2011 triggers the radiator 302 to start. Air is then distributed via a three-way valve 303 to the two spiral grooved tubes 301, exchanging heat with the electrical components. The hot air is then discharged from the top vent, achieving cooling. When an abnormal temperature rise triggers a fire, the powder pump 403 starts. The fire extinguishing dry powder in the dry powder box 402 is pressurized by the powder pump 403 and then transported through the pipeline to the strip nozzle 401 to accurately spray fire extinguishing on the electrical components inside the telescopic protective cover 202, thereby reducing the overall explosion risk of the electrical cabinet 100. The dustproof plate 102 on the cover 101 can prevent external dust from entering and ensure heat dissipation and ventilation efficiency. When maintenance and repair of the cabinet are required, the electric push rod 204 is activated to extend and retract, driving the support plate 203 to slide upward along the slide groove 103, so that the illumination lamp 2012 illuminates the area of ​​electrical components, making it easier to perform maintenance operations.

[0060] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this 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 be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. An explosion-proof electrical device, characterized in that: include: Electrical cabinet (100); An explosion-proof unit (200) is installed inside an electrical cabinet (100) and is used to provide explosion-proof protection for electrical components inside the electrical cabinet (100). A cooling component (300) is installed on the explosion-proof unit (200) and is used to dissipate heat and cool the electrical components. A dry powder assembly (400) is disposed on the explosion-proof unit (200) and is used to extinguish fires by applying dry powder to electrical components.

2. The explosion-proof electrical equipment according to claim 1, characterized in that: The explosion-proof unit (200) includes a lower protective plate (201), which is fixedly connected to the inner wall of one side of the electrical cabinet (100). A telescopic protective cover (202) is fixedly connected to the inner wall of one side of the electrical cabinet (100). A support plate (203) is fixedly connected to both sides of the telescopic protective cover (202). Electric push rods (204) are fixedly connected to both sides of the inner wall of the electrical cabinet (100). The telescopic ends of the two electric push rods (204) are fixedly connected to the corresponding support plates (203).

3. The explosion-proof electrical equipment according to claim 2, characterized in that: The cooling component (300) includes two spiral groove tubes (301), both of which are fixedly connected through the lower shield (201) and the telescopic protective cover (202). The bottom surface of the electrical cabinet (100) is fixedly connected to a radiator (302), and the output end of the radiator (302) is fixedly connected to a three-way valve (303). Both ends of the three-way valve (303) are fixedly connected to the corresponding spiral groove tubes (301). The top surface of the electrical cabinet (100) is provided with multiple air outlets.

4. The explosion-proof electrical equipment according to claim 3, characterized in that: The dry powder assembly (400) includes a strip nozzle (401), which is fixedly connected to the inner wall of one side of the telescopic protective cover (202). The top surface of the electrical cabinet (100) is fixedly connected to a dry powder box (402), and a powder pump (403) is fixedly connected to one side surface of the dry powder box (402). The output end of the powder pump (403) is fixedly connected through the electrical cabinet (100) and the telescopic protective cover (202), and is fixedly connected to the strip nozzle (401).

5. The explosion-proof electrical equipment according to claim 4, characterized in that: The top surface of the electrical cabinet (100) is fixedly connected to two covers (101), and each cover (101) is fitted with a dustproof plate (102).

6. The explosion-proof electrical equipment according to claim 5, characterized in that: The electrical cabinet (100) has sliding grooves (103) on both inner walls, and the two trays (203) are slidably connected in the corresponding sliding grooves (103).

7. An explosion-proof electrical device according to claim 6, characterized in that: A temperature sensor (2011) is fixedly connected to one side surface of the lower shield plate (201), and the temperature sensor (2011) is electrically connected to the radiator (302) and the powder pump (403).

8. An explosion-proof electrical device according to claim 7, characterized in that: Two illumination lamps (2012) are fixedly connected to one side surface of the lower shield (201), and both illumination lamps (2012) are facing the electrical components.

Images