Power distribution cabinet with explosion-proof flame-retardant structure

Abstract

The utility model relates to the technical field of power distribution cabinets, discloses a power distribution cabinet with an explosion-proof flame-retardant structure, and solves the problem that a hot air assembly of the power distribution cabinet is easy to cause dangers. Through the heating plate, the U-shaped pipeline and the temperature and humidity sensor, after the cabinet door is closed, the fan is started, external air is introduced and enters the cavity through the connecting pipe, the heating plate is arranged in the cavity, and the anti-explosion grids are arranged on the two sides of the cavity, so that the anti-explosion performance is kept while ventilation is provided, and the anti-explosion effect is good. And then the heated airflow uniformly flows in the cabinet through the U-shaped pipeline and the ventilation holes, so that the internal humidity is reduced, the airflow cannot be directly blown to electrical elements, overweight moisture can be avoided, electrical faults caused by overheat drying can be avoided, and the temperature and humidity conditions in the cabinet can be continuously monitored through the temperature and humidity sensor, so that the temperature and humidity in the cabinet can be effectively controlled. And parameters such as the fan rotating speed and the heating plate power are automatically adjusted through the control panel according to a preset threshold value, so that the internal stability is maintained.

Description

Technical Field

[0001] The utility model relates to the technical field of power distribution cabinets, in particular to a power distribution cabinet with an explosion-proof and flame-retardant structure. Background Art

[0002] The distribution cabinet is divided into power distribution cabinet, lighting distribution cabinet and metering cabinet, which is the final equipment of the power distribution system. The distribution cabinet is a general term for the motor control center.

[0003] The utility model with Chinese patent announcement number CN214589822U discloses a flame-retardant explosion-proof power distribution cabinet, including a cabinet, a mounting cavity, and an air outlet on the side wall of the cabinet; a hot air generating device, which is arranged in the mounting cavity, and the hot air generating device is used to dry the mounting cavity. The hot air generating device is arranged in the mounting cavity, and the hot air blown by the hot air generating device is used to discharge the wet and cold air in the mounting cavity, thereby drying the mounting cavity. The air outlet arranged on the side wall of the cabinet can make the air in the mounting cavity be discharged from the side of the cabinet, and the density of wet air is greater than that of hot air, so the wet air generally flows downward, and it is not easy for wet air to enter the mounting cavity from the air outlet on the side wall of the cabinet. The hot air generating device includes a fan; a heating component, one end of which is connected to the fan and the other end is connected to the mounting cavity, the structure is simple, the fan is easy to obtain, and the installation is convenient and removable. The heating component includes a sleeve and an electric heating wire, the electric heating wire is arranged in the sleeve, one end of the sleeve is connected to the fan, and the other end is connected to the mounting cavity, the structural principle is simple, and the manufacturing cost is low.

[0004] The above patent discloses a flame-retardant and explosion-proof power distribution cabinet, which solves the problem of keeping the installation cavity dry and preventing the short circuit of the lines in the installation cavity from causing the power distribution cabinet to explode or burn. However, if the hot air blows directly onto the electrical components or lines in the cabinet, it may accelerate the aging of the insulation material and aggravate the thermal stress, especially when the hot air temperature is not properly controlled, which may increase the risk of electrical fires. Utility Model Content

[0005] The utility model aims to provide a power distribution cabinet with an explosion-proof and flame-retardant structure. The device is adopted to work, thereby solving the problem that the hot air components of the existing power distribution cabinet are prone to cause danger.

[0006] To achieve the above object, the utility model provides the following technical solution: a power distribution cabinet with an explosion-proof and flame-retardant structure, comprising a power distribution cabinet body and a cabinet door hinged on one side of the power distribution cabinet body, wherein a drying component is arranged inside the power distribution cabinet body to prevent overheating inside the power distribution cabinet body;

[0007] The drying component includes a fan arranged on the upper surface of the distribution cabinet body, and a connecting pipe arranged on one side of the fan, one end of the connecting pipe passes through the interior of the distribution cabinet body, an L-shaped explosion-proof baffle is arranged on the inner wall of the distribution cabinet body, a cavity is arranged between the L-shaped explosion-proof baffle and the distribution cabinet body, a heating plate is arranged inside the cavity, explosion-proof grilles are arranged at positions corresponding to the cavities on both sides of the distribution cabinet body, a U-shaped pipe is arranged below the L-shaped explosion-proof baffle, and ventilation holes are arranged on the outer surface of the U-shaped pipe, multiple groups of ventilation holes are arranged, and the ventilation holes are all facing the direction of the cabinet door, a temperature and humidity sensor is arranged on one side of the cabinet door, and a control panel is arranged on one side of the distribution cabinet body, and the fan, heating plate and temperature and humidity sensor are all connected to the control panel through signals.

[0008] Furthermore, a quadrangular platform base is provided at the bottom of the distribution cabinet body, a C-shaped baffle is provided on the upper surface of the quadrangular platform base, a shock-absorbing spring is provided on the inner wall of the C-shaped baffle, two groups of shock-absorbing springs are provided, one end of the two groups of shock-absorbing springs are provided with a clamping plate, and the distribution cabinet body is located between the two groups of clamping plates.

[0009] Furthermore, an elastic gasket is provided on one side of the two groups of clamping plates, and one side of the elastic gasket is in contact with the outer surface of the power distribution cabinet body.

[0010] Furthermore, a support column is provided on the upper surface of the power distribution cabinet body, a shield is provided on the upper end of the support column, and the fan is located below the shield.

[0011] Furthermore, a drainage groove is provided at the bottom of the C-shaped baffle.

[0012] Furthermore, a sealing strip is provided on the inner wall of the power distribution cabinet body, and one side of the sealing strip is in contact with one side of the cabinet door.

[0013] Furthermore, a ventilation slot is provided on one side of the power distribution cabinet body.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0015] The utility model proposes a power distribution cabinet with an explosion-proof and flame-retardant structure. In the prior art, the hot air components of the power distribution cabinet are prone to cause danger. However, the utility model uses a heating plate, a U-shaped pipe and a temperature and humidity sensor. After the cabinet door is closed, the fan is started, and the outside air is introduced and enters the cavity through the connecting pipe. Since a heating plate is provided in the cavity and explosion-proof grilles are provided on both sides of the cavity, ventilation is provided while maintaining explosion-proof performance. Then the heated air flow flows evenly in the cabinet through the U-shaped pipe and the ventilation holes, which not only reduces the internal humidity, but also does not blow directly at the electrical components, which can avoid excessive moisture and electrical failures caused by overheating of drying. The temperature and humidity conditions in the cabinet are continuously monitored through the temperature and humidity sensor, and the fan speed, heating plate power and other parameters are automatically adjusted through the control panel according to the preset threshold value, so as to maintain internal stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The overall structure of the utility model is shown in FIG. Figure 1 ;

[0017] Figure 2 This is a schematic diagram of the cabinet and drying assembly structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the four-sided platform base of the utility model;

[0019] Figure 4 The overall structure of the utility model is shown in FIG. Figure 2 .

[0020] In the figure: 1. Distribution cabinet body; 11. Support column; 2. Cabinet door; 3. Drying component; 31. Fan; 32. Connecting pipe; 33. L-shaped explosion-proof baffle; 34. Cavity; 35. Heating plate; 36. Explosion-proof grille; 37. U-shaped pipe; 371. Ventilation hole; 38. Temperature and humidity sensor; 39. Control panel; 4. Quadrangular platform base; 41. C-shaped baffle; 411. Drain groove; 42. Shock-absorbing spring; 43. Clamp; 44. Elastic gasket; 5. Shield; 6. Sealing strip; 7. Ventilation groove. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] In order to further understand the content of the utility model, the utility model is described in detail in conjunction with the accompanying drawings.

[0023] Combination Figure 1 A power distribution cabinet with an explosion-proof and flame-retardant structure includes a power distribution cabinet body 1 and a cabinet door 2 hinged on one side of the power distribution cabinet body 1. A drying component 3 is arranged inside the power distribution cabinet body 1 to prevent overheating inside the power distribution cabinet body 1.

[0024] The utility model is further described below in conjunction with embodiments.

[0025] Embodiment 1:

[0026] See also Figure 1-Figure 4 The drying component 3 includes a fan 31 arranged on the upper surface of the distribution cabinet body 1, and a connecting pipe 32 arranged on one side of the fan 31, one end of the connecting pipe 32 passes through the interior of the distribution cabinet body 1, an L-shaped explosion-proof baffle 33 is arranged on the inner wall of the distribution cabinet body 1, a cavity 34 is arranged between the L-shaped explosion-proof baffle 33 and the distribution cabinet body 1, a heating plate 35 is arranged inside the cavity 34, explosion-proof grilles 36 are arranged at positions corresponding to the cavities 34 on both sides of the distribution cabinet body 1, a U-shaped pipe 37 is arranged below the L-shaped explosion-proof baffle 33, and ventilation holes 371 are arranged on the outer surface of the U-shaped pipe 37, and multiple groups of ventilation holes 371 are arranged, and the ventilation holes 371 are all facing the direction of the cabinet door 2, a temperature and humidity sensor 38 is arranged on one side of the cabinet door 2, and a control panel 39 is arranged on one side of the distribution cabinet body 1, the fan 31, the heating plate (35) and the temperature and humidity sensor 38 are all connected to the control panel 39 through signals, after the cabinet door 2 is closed, the fan 31 is started, and the outside air is introduced and Enter the cavity 34 through the connecting pipe 32. Since a heating plate 35 is provided in the cavity 34, and explosion-proof grilles 36 are provided on both sides of the distribution cabinet body 1 corresponding to the positions of the cavity 34, ventilation is provided while maintaining explosion-proof performance. Then, a hot air flow is formed by heating the air. The hot air flow passes through the U-shaped pipe 37 and the ventilation hole 371 and blows to between the cabinet door 2 and the U-shaped pipe 37. Then, the hot air flow flows evenly in the distribution cabinet body 1. Therefore, it can not only reduce the humidity inside the distribution cabinet body 1, but also will not blow directly to the internal electrical components. Therefore, it can avoid excessive internal moisture and internal drying overheating, which can cause electrical failures and extend the life of the equipment. At the same time, the temperature and humidity conditions in the distribution cabinet body 1 are continuously monitored by the temperature and humidity sensor 38, and the data is transmitted to the control panel 39. Therefore, the control panel 39 can automatically adjust the parameters such as the speed of the fan 31 and the power of the heating plate 35 according to the preset threshold value, so as to maintain a stable internal working environment.

[0027] A tetrahedral base 4 is provided at the bottom of the distribution cabinet body 1, a C-shaped baffle plate 41 is provided on the upper surface of the tetrahedral base 4, a shock-absorbing spring 42 is provided on the inner wall of the C-shaped baffle plate 41, two groups of shock-absorbing springs 42 are provided, and a clamping plate 43 is provided at one end of the two groups of shock-absorbing springs 42. The distribution cabinet body 1 is located between the two groups of clamping plates 43. The distribution cabinet body 1 covers the upper surface of the tetrahedral base 4, and clamps the distribution cabinet body 1 with two groups of clamping plates 43. One side of the clamping plate 43 is connected to the C-shaped baffle plate 41 through the shock-absorbing spring 42. Therefore, when vibration occurs, the shock-absorbing spring 42 absorbs and consumes the transmitted vibration energy through its own elastic deformation, thereby reducing the influence of vibration on the distribution cabinet body 1 and its internal electrical components.

[0028] An elastic gasket 44 is provided on one side of both sets of splints 43, and one side of the elastic gasket 44 contacts the outer surface of the distribution cabinet body 1, further increasing the buffering effect, and can also reduce the friction and wear between the splints 43 and the distribution cabinet body 1, thereby improving the service life of the distribution cabinet body 1.

[0029] A support column 11 is provided on the upper surface of the distribution cabinet body 1, and a shield plate 5 is provided at the upper end of the support column 11. The fan 31 is located below the shield plate 5, which can reduce the impact of rain and sun on the distribution cabinet body 1 and the fan 31, reduce electrical failures caused by external factors, and indirectly enhance the explosion-proof safety of the distribution cabinet body 1.

[0030] A drainage groove 411 is provided at the bottom of the C-shaped baffle plate 41 to prevent rainwater from entering the interior of the power distribution cabinet body 1 and to prevent rainwater from accumulating between the C-shaped baffle plate 41 and the four-sided platform base 4 .

[0031] The inner wall of the power distribution cabinet body 1 is provided with a sealing strip 6, one side of which contacts with one side of the cabinet door 2, thereby preventing pollutants such as dust from entering the interior of the power distribution cabinet body 1 through the gap of the cabinet door 2, thereby preventing them from corroding electrical equipment and causing a decrease in insulation performance, thereby ensuring the normal operation and long life of electrical components.

[0032] A ventilation slot 7 is provided on one side of the power distribution cabinet body 1. Since a large amount of heat is generated when the electrical components are working, it is necessary to increase the internal heat dissipation effect.

[0033] Specifically, since the inner wall of the power distribution cabinet body 1 is provided with a sealing strip 6, one side of the sealing strip 6 is in contact with one side of the cabinet door 2, after closing the cabinet door 2, it can prevent pollutants such as dust from entering the interior of the power distribution cabinet body 1 through the gap of the cabinet door 2, prevent them from corroding electrical equipment, thereby causing the insulation performance to deteriorate, and ensure the normal operation and long life of electrical components. Then, the fan 31 is started, and the outside air is introduced and enters the cavity 34 through the connecting pipe 32. Since a heating plate 35 is provided in the cavity 34, and explosion-proof grilles 36 are provided at the positions corresponding to the cavity 34 on both sides of the power distribution cabinet body 1, ventilation is provided while maintaining explosion-proof performance. Then, by heating the air, , forming a hot air flow, the hot air flow passes through the U-shaped pipe 37 and the ventilation hole 371 and blows to the space between the cabinet door 2 and the U-shaped pipe 37, and then the hot air flow flows evenly in the distribution cabinet body 1, so it can not only reduce the humidity inside the distribution cabinet body 1, but also will not blow directly to the internal electrical components. At the same time, because the electrical components will also generate a lot of heat when working, a ventilation slot 7 is provided on one side of the distribution cabinet body 1 to increase the internal heat dissipation effect, so that it can avoid excessive internal moisture and internal drying overheating, which can cause electrical failures and extend the life of the equipment. At the same time, the temperature and humidity conditions in the distribution cabinet body 1 are continuously monitored through the temperature and humidity sensor 38, and the data is transmitted The control panel 39 can automatically adjust the parameters such as the speed of the fan 31 and the power of the heating plate 35 according to the preset threshold value, so as to maintain a stable internal working environment. In addition, because the power distribution cabinet body 1 is located between two groups of clamping plates 43 on the upper surface of the quadrangular platform base 4, one side of the clamping plate 43 is connected to the C-shaped baffle 41 through a shock-absorbing spring 42, and elastic gaskets 44 are arranged on one side of the two groups of clamping plates 43. Therefore, when vibration occurs, not only the shock-absorbing spring 42 absorbs and consumes the transmitted vibration energy through its own elastic deformation, thereby reducing the influence of vibration on the power distribution cabinet body 1 and its internal electrical components, but also the elastic gasket 44 further increases the vibration of the power distribution cabinet body 1. It can also add a buffering effect, and can also reduce the friction and wear between the splint 43 and the distribution cabinet body 1, thereby improving the service life of the distribution cabinet body 1. In addition, since a support column 11 is provided on the upper surface of the distribution cabinet body 1, a shield plate 5 is provided on the upper end of the support column 11, and the fan 31 is located below the shield plate 5, it can reduce the impact of rain and sun on the distribution cabinet body 1 and the fan 31, reduce electrical failures caused by external factors, and indirectly enhance the explosion-proof safety of the distribution cabinet body 1. Because a drainage groove 411 is provided at the bottom of the C-shaped baffle plate 41, rainwater is prevented from entering the interior of the distribution cabinet body 1, and it can also prevent rainwater from accumulating between the C-shaped baffle plate 41 and the tetrahedral base 4.

[0034] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0035] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A power distribution cabinet with an explosion-proof and flame-retardant structure, comprising a power distribution cabinet body (1), and a cabinet door (2) hinged to one side of the power distribution cabinet body (1), characterized in that: The power distribution cabinet body (1) is provided with a drying component (3) inside to prevent the power distribution cabinet body (1) from overheating; The drying assembly (3) comprises a fan (31) arranged on the upper surface of the power distribution cabinet body (1), and a connecting pipe (32) arranged on one side of the fan (31), one end of the connecting pipe (32) passes through the inside of the power distribution cabinet body (1), an L-shaped explosion-proof baffle (33) is arranged on the inner wall of the power distribution cabinet body (1), a cavity (34) is arranged between the L-shaped explosion-proof baffle (33) and the power distribution cabinet body (1), a heating plate (35) is arranged inside the cavity (34), and explosion-proof grids (35) are arranged on both sides of the power distribution cabinet body (1) at positions corresponding to the cavity (34). A U-shaped pipe (37) is arranged below the L-shaped explosion-proof baffle (33); ventilation holes (371) are arranged on the outer surface of the U-shaped pipe (37); a plurality of ventilation holes (371) are arranged, and the ventilation holes (371) are all oriented toward the cabinet door (2); a temperature and humidity sensor (38) is arranged on one side of the cabinet door (2); a control panel (39) is arranged on one side of the power distribution cabinet body (1); and the fan (31), the heating plate (35) and the temperature and humidity sensor (38) are all connected to the control panel (39) through signals.

2. The power distribution cabinet with explosion-proof and flame-retardant structure according to claim 1 is characterized in that: A quadrangular pyramid base (4) is provided at the bottom of the power distribution cabinet body (1); a C-shaped baffle (41) is provided on the upper surface of the quadrangular pyramid base (4); a shock-absorbing spring (42) is provided on the inner wall of the C-shaped baffle (41); two groups of the shock-absorbing spring (42) are provided; one end of each of the two groups of the shock-absorbing spring (42) is provided with a clamping plate (43); and the power distribution cabinet body (1) is located between the two groups of the clamping plates (43).

3. The power distribution cabinet with explosion-proof and flame-retardant structure according to claim 2 is characterized in that: An elastic gasket (44) is provided on one side of the two groups of clamping plates (43), and one side of the elastic gasket (44) is in contact with the outer surface of the power distribution cabinet body (1).

4. The power distribution cabinet with explosion-proof and flame-retardant structure according to claim 1, characterized in that: A support column (11) is provided on the upper surface of the power distribution cabinet body (1), a shield plate (5) is provided at the upper end of the support column (11), and the fan (31) is located below the shield plate (5).

5. The power distribution cabinet with explosion-proof and flame-retardant structure according to claim 2 is characterized in that: A drainage groove (411) is provided at the bottom of the C-shaped baffle (41).

6. The power distribution cabinet with explosion-proof and flame-retardant structure according to claim 1, characterized in that: The inner wall of the power distribution cabinet body (1) is provided with a sealing strip (6), and one side of the sealing strip (6) is in contact with one side of the cabinet door (2).

7. The power distribution cabinet with explosion-proof and flame-retardant structure according to claim 1, characterized in that: A ventilation slot (7) is provided on one side of the power distribution cabinet body (1).

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