Electrical cabinet with explosion-proof purification

By integrating fans, dust filters, and ventilation components into the electrical cabinet, the risk of explosion in dusty or flammable gas environments has been solved, achieving explosion-proof purification and heat dissipation functions, and improving the safety and reliability of the electrical cabinet.

CN115133419BActive Publication Date: 2026-08-25ERGONG EXPLOSION PROOF TECH CO LTD
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Patent Information

Application Number
CN202210809297.0
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-07-11
Publication Date
2026-08-25
Estimated Expiration
2042-07-11

AI Technical Summary

Technical Problem

Traditional electrical cabinets are difficult to purify and evacuate in dusty or flammable gas environments, which increases the risk of explosion, and excessive heat may cause spontaneous combustion.

Method used

An electrical cabinet integrating a fan, dust filter, and ventilation components was designed. The cabinet monitors the environment through a detection component, purifies the air using the fan and dust filter, dissipates heat and exchanges air using the ventilation component, and adjusts the air duct using a switching valve plate to achieve explosion-proof and purification functions.

Benefits of technology

It effectively reduces the concentration of flammable gases around the electrical cabinet in a confined space, preventing explosions, ensuring heat dissipation inside the electrical cabinet, reducing dust accumulation, and improving safety and reliability.

✦ Generated by Eureka AI based on patent content.

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    Figure CN115133419B_ABST
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Abstract

The application discloses an electrical cabinet with explosion-proof and purifying effects, which comprises an electrical cabinet body and a shell, the shell is installed at the back lower end of the electrical cabinet body, an aluminum heat dissipation plate is fixedly installed at the back of the electrical cabinet body, a fan is installed in the shell, dust filtering assemblies are arranged on the two sides of the electrical cabinet body, the fan is communicated with the dust filtering assemblies, a ventilation assembly is arranged at the output end of the fan, and a detection assembly is installed on the electrical cabinet body. The application has the advantages that the fan, the dust filtering assembly and the ventilation assembly are integrated on the electrical cabinet body, the detection assembly can detect the gas or dust that may exist in the air and cause explosion threats, different conversion combinations can optimize heat dissipation, purify air, reduce the combustion and explosion of excessive combustible gas in the air, and the explosion caused by the high combustible gas concentration around the electrical cabinet in a narrow space is avoided.
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Description

Technical Field

[0001] This invention relates to the field of electrical cabinet technology, specifically to an electrical cabinet with explosion-proof and purification functions. Background Technology

[0002] Electrical cabinets are made of steel and are used to protect components and ensure their proper functioning. The materials used in electrical cabinet manufacturing are generally divided into hot-rolled steel plates and cold-rolled steel plates. Cold-rolled steel plates are more flexible than hot-rolled steel plates and are more suitable for electrical cabinet manufacturing. Electrical cabinets have a wide range of applications, mainly in the chemical industry, environmental protection industry, power systems, metallurgical systems, industrial applications, nuclear power industry, fire safety monitoring, transportation industry, etc. Excessive dust or flammable gas concentrations within a confined space can easily damage electrical cabinets or cause explosions. Confined spaces refer to the small spaces where various electrical cabinets are installed, including equipment boxes, compartments, and mine shafts.

[0003] Currently, electrical cabinets are only made of rigid materials to make themselves explosion-proof. However, electrical cabinets are located in small spaces where air circulation is difficult. If the area around the electrical cabinet is filled with dust or flammable gas, the traditional electrical cabinet cannot purify or evacuate the surrounding area. If air circulation is difficult, there is still a risk of explosion. In addition, most of the components inside the electrical cabinet are electrical components, which are at risk of spontaneous combustion due to excessive heat. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing an electrical cabinet with explosion-proof and purification functions.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] An electrical cabinet with explosion-proof and purification functions includes an electrical cabinet body and a housing. The housing is installed on the lower back of the electrical cabinet body. An aluminum heat sink is fixedly installed on the back of the electrical cabinet body. A fan is installed inside the housing. Dust filter components are provided on both sides of the electrical cabinet body. The fan is connected to the dust filter components. A ventilation component is provided at the output end of the fan. A detection component is installed on the electrical cabinet body.

[0007] Preferably, the dust filtration assembly includes a dust collection box, which is fixedly installed on the electrical cabinet body. A flexible hose is fixedly connected to one side of the dust collection box, and a suction head is fixedly connected to the end of the flexible hose. The suction head is installed on the electrical cabinet body through a bracket assembly. A ventilation duct is provided inside the dust collection box, which is connected to a fan. A dust collection port is provided inside the dust collection box. A filter screen is driven by a driving component inside the ventilation duct, and the filter screen is hinged to the inner wall of the ventilation duct.

[0008] Preferably, the support assembly includes a support rod, which is movably connected to both sides of the electrical cabinet body, and the end of the support rod is movably connected to the vacuum head via a ball joint.

[0009] Preferably, the detection components include, but are not limited to, dust detection sensors, temperature sensors, and combustible gas sensors.

[0010] Preferably, the ventilation assembly includes an exhaust duct, a T-junction, and an intake duct. The T-junction is fixedly connected to the top of the housing, the exhaust duct is connected to the back of the T-junction, and a switching valve plate is driven inside the T-junction by a drive component.

[0011] The beneficial effects of this invention are:

[0012] First, the electrical cabinet with explosion-proof and purification function provided by the present invention integrates a fan, a dust filter component and a ventilation component on the electrical cabinet body. The detection component can detect gases or dust in the air that may pose an explosion threat. Through different conversion combinations, it can optimize heat dissipation, purify the air, and reduce the excessive amount of flammable gases in the air that may cause combustion and explosion. It avoids the possibility of explosion caused by excessively high concentrations of flammable gases around the electrical cabinet in a confined space.

[0013] Secondly, the filter can switch between different modes using the driving component to adapt to different environments. When the filter is inside the ventilation duct, the fan starts and the dust suction head draws in air. The filter's filtering and blocking effect can filter the dust, allowing the dust and impurities to fall from the dust inlet into the dust collection box. This is suitable for use in dusty environments. When the filter is driven by the driving component to rotate to the dust inlet, the fan rotates, and the air resistance in the ventilation duct is low. This is suitable for use during heat dissipation and ventilation.

[0014] Third, the switching valve plate at the ventilation component is driven by a drive component to be used in different environments. The drive component is an electrical component that drives the switching valve plate to rotate. It can be set as a drive motor. The switching valve plate can switch the flow of air through different channels in the three-way pipe. It can blow the flow of air towards the aluminum heat sink for heat dissipation, or blow the air into the exhaust duct for ventilation. During ventilation, the air inlet pipe is used to draw in air. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the basic structure of the present invention;

[0016] Figure 2 This is a rear view of the present invention;

[0017] Figure 3 For the present invention Figure 1 Schematic diagram of the structure of section A.

[0018] In the diagram: 1. Electrical cabinet body; 2. Shell; 3. Aluminum heat sink; 4. Fan; 5. Dust filter assembly; 501. Dust collection box; 502. Hose; 503. Suction head; 504. Ventilation duct; 505. Dust outlet; 506. Filter screen; 6. Ventilation assembly; 601. Exhaust duct; 602. T-joint; 603. Inlet duct; 604. Diverter valve; 7. Detection assembly; 701. Dust detection sensor; 702. Temperature sensor; 703. Combustible gas sensor; 8. Support assembly; 801. Support rod; 802. Ball joint. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention 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 invention.

[0021] like Figure 1 - Figure 3As shown, the present invention provides an electrical cabinet with explosion-proof and purification functions, including an electrical cabinet body 1 and a shell 2. The shell 2 is installed on the lower back of the electrical cabinet body 1. An aluminum heat sink 3 is fixedly installed on the back of the electrical cabinet body 1. A fan 4 is installed inside the shell 2. Dust filter components 5 are provided on both sides of the electrical cabinet body 1. The fan 4 is connected to the dust filter components 5. A ventilation component 6 is provided at the output end of the fan 4. A detection component 7 is installed on the electrical cabinet body 1. The detection component 7 is electrically connected to the existing controller and can automatically control the electrical components in the fan 4, dust filter component 5, or ventilation component 6. First, the aluminum heat sink 3 is used to dissipate heat from the inside of the electrical cabinet. Normally, natural air convection is sufficient for heat dissipation. When the temperature is too high, the fan 4 is activated to blow air onto the aluminum heat sink 3, thereby enhancing the heat dissipation effect. The detection component 7 can detect gases or dust in the air that may pose an explosion threat. If excessive dust is detected, the existing fan 4 and dust filter component 5 can be combined to purify the dust and air, preventing an explosion caused by excessive dust reacting with the electrical cabinet body 1. By combining the fan 4 and ventilation component 6, the air in the space surrounding the electrical cabinet body 1 can be quickly exchanged, preventing an explosion caused by excessively high concentrations of flammable gases around the electrical cabinet in a confined space. Simultaneously, the air convection process also purifies the air in the space.

[0022] The dust filter assembly 5 includes a dust collection box 501, which is fixedly installed on the electrical cabinet body 1. A flexible hose 502 is fixedly connected to one side of the dust collection box 501, and a suction head 503 is fixedly connected to the end of the flexible hose 502. The suction head 503 is installed on the electrical cabinet body 1 through a bracket assembly 8. A ventilation duct 504 is provided inside the dust collection box 501, which is connected to the fan 4. A dust collection port 505 is provided inside the dust collection box 501. A filter screen 506 is driven by a driving component inside the ventilation duct 504, and the filter screen 506 is hinged to the inner wall of the ventilation duct 504. The driving component is an electrical component that drives the filter screen 506 to rotate. It can be configured as a drive motor. The filter screen 506 is plate-shaped and is driven to rotate by the driving component. When the filter screen 506 is blocked in the ventilation duct 504, the fan 4 starts and the dust suction head 503 draws in air. By utilizing the filtering and blocking effect of the filter screen 506, dust can be filtered, and dust and impurities fall from the dust outlet 505 into the dust collection box 501. It is suitable for use in dusty environments. When the filter screen 506 is driven to rotate to the dust outlet 505 by the driving component, the fan 4 rotates. The air resistance in the ventilation duct 504 is small, which is suitable for use in heat dissipation and ventilation.

[0023] The support assembly 8 includes a support rod 801, which is movably connected to both sides of the electrical cabinet body 1. The end of the support rod 801 is movably connected to the vacuum head 503 via a ball joint 802. The support assembly 8 can support the vacuum head 503 to adjust to different positions. Here, a simple support model is used, with the support rod 801 for support and the ball joint 802 for connection. This allows for adjustment of the vacuum head 503 to different angles and positions, making it more convenient to adjust the vacuuming operation.

[0024] The detection component 7 includes, but is not limited to, a dust detection sensor 701, a temperature sensor 702, and a combustible gas sensor 703. This detection component 7 primarily detects common airborne substances that readily react with the electrical cabinet. It can be configured and installed according to requirements. For example, the dust detection sensor 701 can detect the dust content in the air and activate corresponding dust filtration measures when the dust level exceeds the standard. The combustible gas sensor 703 can detect the content of combustible gases such as natural gas in the air and take corresponding ventilation measures when the level exceeds the standard. The temperature sensor 702 can detect the temperature inside the electrical cabinet; when the temperature is too high, the fan 4 blows air through the aluminum heat sink 3 to enhance airflow and heat dissipation.

[0025] The ventilation assembly 6 includes an exhaust duct 601, a tee pipe 602, and an inlet duct 603. The tee pipe 602 is fixedly connected to the top of the housing 2, and the exhaust duct 601 is connected to the back of the tee pipe 602. Inside the tee pipe 602, a switching valve plate 604 is driven by a driving component. The driving component is an electrical component that drives the switching valve plate 604 to rotate, and can be configured as a drive motor. The switching valve plate 604 is a plate that acts as a switch valve, and within the tee pipe 602, it can switch the flow of air through different channels. It can direct the flow of air towards the aluminum heat sink 3 for heat dissipation, or it can direct the air into the exhaust duct 601 for ventilation. During ventilation, air enters through the inlet duct 603, and a one-way valve can be installed inside the inlet duct 603.

[0026] Working Principle: During use, the detection component 7 detects gases or dust in the air that may pose an explosion threat. When excessive dust is detected, the existing fan 4, combined with the dust filter component 5, purifies the dust and air, preventing an explosion caused by excessive dust reacting with the electrical cabinet body 1. By combining the fan 4 with the ventilation component 6, the air in the space surrounding the electrical cabinet body 1 can be quickly exchanged, avoiding an explosion caused by excessively high concentrations of flammable gases around the electrical cabinet in a confined space. Simultaneously, the air convection process also purifies the air in the space. The detection component 7 is electrically connected to the existing controller, which can automatically control the electrical components in the fan 4, dust filter component 5, or ventilation component 6. First, the aluminum heat sink 3 dissipates heat from the inside of the electrical cabinet. Under normal circumstances, natural air convection is sufficient for heat dissipation. When the heat dissipation temperature is too high, the system activates... The blower 4 blows air onto the aluminum heat sink 3, thereby enhancing heat dissipation. The filter 506, driven by a driving component, can switch between different modes to suit different environments. When the filter 506 is inside the ventilation duct 504, the blower 4 starts, and the suction head 503 draws in air. The filter 506 filters out dust, allowing dust and impurities to fall from the dust outlet 505 into the dust collection box 501, suitable for use in dusty environments. When the filter 506 is driven to the dust outlet 505, the blower 4 rotates, reducing air resistance within the ventilation duct 504, suitable for both heat dissipation and ventilation. The bracket assembly 8 supports the suction head 503 in different positions. A simple bracket model is used, supported by a support rod 801 and connected by a ball joint 802, allowing adjustment of the suction head 503 to different angles and positions, facilitating easier suction operations. The ventilation assembly has six switching valve plates 604 driven by a drive component, which can be used in different environments. The drive component is an electrical component that drives the switching valve plate 604 to rotate. It can be set as a drive motor. The switching valve plate 604 can switch the flow of air through different channels in the three-way pipe 602. It can blow the flow of air towards the aluminum heat sink 3 for heat dissipation, or blow the air into the exhaust pipe 601 for ventilation. During ventilation, the air inlet pipe 603 takes in air.

[0027] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. An electrical cabinet with explosion-proof and purification functions, comprising an electrical cabinet body (1) and a shell (2), characterized in that: The housing (2) is installed on the lower back of the electrical cabinet body (1). An aluminum heat sink (3) is fixedly installed on the back of the electrical cabinet body (1). A fan (4) is installed inside the housing (2). Dust filter components (5) are provided on both sides of the electrical cabinet body (1). The fan (4) is connected to the dust filter components (5). A ventilation component (6) is provided at the output end of the fan (4). A detection component (7) is installed on the electrical cabinet body (1). The dust filter assembly (5) includes a dust collection box (501), which is fixedly installed on the electrical cabinet body (1). A hose (502) is fixedly connected to one side of the dust collection box (501), and a suction head (503) is fixedly connected to the end of the hose (502). The suction head (503) is installed on the electrical cabinet body (1) through a bracket assembly (8). A ventilation duct (504) is provided inside the dust collection box (501), which is connected to the fan (4). A dust collection port (505) is provided inside the dust collection box (501). A filter screen (506) is driven by a driving component inside the ventilation duct (504), and the filter screen (506) is hinged to the inner wall of the ventilation duct (504). The bracket assembly (8) includes a support rod (801), which is movably connected to both sides of the electrical cabinet body (1), and the end of the support rod (801) is movably connected to the vacuum head (503) through a ball joint (802). The ventilation assembly (6) includes an exhaust duct (601), a three-way pipe (602), and an air inlet pipe (603). The three-way pipe (602) is fixedly connected to the top of the housing (2). The exhaust duct (601) is connected to the back of the three-way pipe (602). A switching valve plate (604) is driven inside the three-way pipe (602) by a driving component.

2. An electrical cabinet with explosion-proof and purification functions according to claim 1, characterized in that: The detection component (7) includes a dust detection sensor (701), a temperature sensor (702), and a combustible gas sensor (703).

Citation Information

Patent Citations

  • Power distribution cabinet with dust removal, water cooling and heat dissipation functions

    CN107946930A

  • Distribution box for dust removal and heat dissipation

    CN110880697A