Power distribution cabinet with moisture-proof function

Abstract

The utility model relates to the technical field of power equipment, and provides a power distribution cabinet with a moisture-proof function, which comprises a cabinet body and a mounting filter plate arranged at the bottom of the cabinet body and used for mounting electronic components, a heat dissipation assembly for reducing dust entering is arranged in the cabinet body, and the heat dissipation assembly comprises an air outlet arranged at the bottom of the cabinet body. The air outlet is formed in the cabinet body, the heat dissipation holes are formed in the two sides of the cabinet body and are of an inverted V-shaped structure, a heat dissipation fan is arranged in the air outlet, a shielding assembly for shielding dust is arranged at one end of the air outlet, and a temperature sensor is arranged in an inner cavity of the cabinet body. According to the utility model, through the arrangement of the heat dissipation assembly, the heat dissipation operation of the cabinet body is realized, and through the arrangement of the heat dissipation holes and the shielding assembly, the amount of dust entering the cabinet body is reduced, the moisture absorption performance of the cabinet body is reduced, and the humidity in the cabinet body is kept in a proper range, so that electronic components in the cabinet body are protected, and the service life of the cabinet body is prolonged. The power distribution cabinet is not easy to corrode by external impurities, and the service life of the power distribution cabinet is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of electric power equipment, in particular to a power distribution cabinet with moisture-proof function. Background Art

[0002] The distribution cabinet will generate a lot of heat during operation. In order to avoid damage to the distribution cabinet caused by heat accumulation, we generally use heat dissipation equipment to dissipate heat for the distribution cabinet. The existing heat dissipation methods are mainly divided into two methods: air cooling and water cooling. Air cooling is widely used due to its low cost and convenience. However, when the distribution cabinet is cooled by air cooling equipment, some dust from the outside will be carried into the distribution cabinet by the airflow, and then adsorbed on the internal components of the distribution cabinet. Since dust is easily affected by moisture, when the amount of dust in the distribution cabinet increases, the humidity in the distribution cabinet will also increase. The electronic components inside the distribution cabinet are easily corroded in a humid environment, thereby increasing the probability of failure of the distribution cabinet. Utility Model Content

[0003] The utility model aims to solve the defect that the existing power distribution cabinet will bring external dust into the power distribution cabinet when dissipating heat through air cooling, thereby increasing the humidity inside the power distribution cabinet, and proposes a power distribution cabinet with moisture-proof function.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A power distribution cabinet with moisture-proof function, comprising a cabinet body and a mounting filter plate arranged at the bottom of the cabinet body for mounting electronic components, wherein a heat dissipation component for reducing dust ingress is arranged in the cabinet body;

[0006] The heat dissipation component includes an air outlet opened at the bottom of the cabinet, and heat dissipation holes arranged on both sides of the cabinet, and the heat dissipation holes are of a ∧-shaped structure. A heat dissipation fan is arranged inside the air outlet, and a shielding component for shielding dust is arranged at one end of the air outlet. A temperature sensor is arranged in the inner cavity of the cabinet, and a controller electrically connected to the temperature sensor and the heat dissipation fan is arranged in the cabinet.

[0007] Preferably, the shielding assembly includes a shielding turntable coaxially fixed with the output end of the heat dissipation fan, a shielding gear is rotatably installed in the air outlet, a shielding plate for shielding the air outlet is coaxially fixed to the lower part of the shielding gear, the shielding plate is rotatably connected to the cabinet body, and the rotating end of the shielding plate is provided with a reset torsion spring respectively fixed to the cabinet body and the shielding plate, and a plurality of shielding teeth meshing with the shielding gear are intermittently provided on the outside of the shielding turntable.

[0008] Preferably, a striking rod coaxially fixed thereto is provided above the shielding gear, and one side of the striking rod is in contact with the inner wall of the air outlet.

[0009] Preferably, the bottom of the inner cavity of the cabinet is conical, and the internal dimensions decrease in order from top to bottom.

[0010] Preferably, a moisture absorbing rod for absorbing moisture is provided in the heat dissipation hole, and the moisture absorbing rod is made of cotton material.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. The utility model realizes the heat dissipation operation of the cabinet by setting the heat dissipation component, and reduces the amount of dust entering the cabinet by setting the heat dissipation holes and the shielding component, reduces the moisture absorption performance of the cabinet, and keeps the humidity in the cabinet within a suitable range, thereby protecting the electronic components in the cabinet, making them less likely to be corroded by external impurities, and extending the service life of the distribution cabinet.

[0013] 2. The utility model provides a striking rod so that dust entering the cabinet will also flow out from the air outlet when the cooling fan is running, further reducing the amount of dust in the cabinet and improving the protection performance of electronic components. The moisture absorption rod is provided to achieve moisture absorption operation of the air flowing through the cooling holes, further reducing the humidity in the cabinet. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0015] Figure 2 This is a front cross-sectional view of the utility model;

[0016] Figure 3 for Figure 2 A schematic diagram of the enlarged structure of the middle A area;

[0017] Figure 4 This is a schematic diagram of the disassembled structure of the shielding component of the utility model.

[0018] In the figure: 1. cabinet; 2. heat dissipation component; 21. air outlet; 22. heat dissipation hole; 23. shielding component; 231. shielding turntable; 232. shielding gear; 233. striking rod; 234. shielding plate; 235. reset torsion spring; 24. heat dissipation fan; 25. moisture absorption rod; 3. install filter plate. DETAILED DESCRIPTION

[0019] 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.

[0020] When the power distribution cabinet uses air cooling technology to process internal heat, some light dust from the outside world is easily brought into the power distribution cabinet by the airflow. Because water vapor in the air must attach to dust to condense into small water droplets, the presence of dust provides the necessary conditions for the condensation of water vapor, making it easier for moisture in the air to be absorbed and condensed. When dust is adsorbed on electronic components, these water vapors will also be attracted to the electronic components, thereby corroding the electronic components and increasing the probability of failure.

[0021] Embodiment 1

[0022] The existing power distribution cabinet will bring external dust into the power distribution cabinet when dissipating heat through air cooling, which will cause the humidity inside the power distribution cabinet to increase. Figure 1-Figure 4 The present embodiment proposes a power distribution cabinet with a moisture-proof function, which reduces the amount of dust entering the cabinet 1 and reduces the moisture absorption performance of the cabinet 1, so that the humidity in the cabinet 1 is maintained in an appropriate range. The cabinet 1 is mainly composed of a cabinet 1 and a mounting filter plate 3 arranged at the bottom of the cabinet 1 for mounting electronic components. The cabinet 1 is provided with a heat dissipation component 2 for reducing the entry of dust. When the temperature in the cabinet 1 is too high, the cabinet 1 can be cooled by the operation of the heat dissipation component 2, and the electronic components arranged in the cabinet 1 can be installed on the mounting filter plate 3. The hole arrangement on the mounting filter plate 3 can increase the flow efficiency of the heat dissipation airflow and further improve the cooling effect.

[0023] In order to reduce the moisture absorption capacity of dust accumulated in the cabinet 1, the present embodiment proposes a heat dissipation component 2, which reduces the amount of dust entering the cabinet 1 and reduces the moisture absorption performance of the cabinet 1, so that the humidity in the cabinet 1 is maintained within a suitable range, thereby protecting the electronic components in the cabinet 1 and making them less susceptible to corrosion by external impurities, such as Figure 2 As shown, the heat dissipation component 2 includes an air outlet 21 opened at the bottom of the cabinet 1, and heat dissipation holes 22 arranged on both sides of the cabinet 1, and the heat dissipation holes 22 are of a ∧-shaped structure, a heat dissipation fan 24 is arranged inside the air outlet 21, and a shielding component 23 for shielding dust is arranged at one end of the air outlet 21, a temperature sensor is arranged in the inner cavity of the cabinet 1, and a controller electrically connected to the temperature sensor and the heat dissipation fan 24 is arranged in the cabinet 1. When the power distribution cabinet is used normally, the heat dissipation operation can be realized through the flow of air in the heat dissipation holes 22, such as Figure 3As shown, the heat dissipation hole 22 is a ∧-shaped structure, so when the airflow enters the cabinet 1 through the heat dissipation hole 22, there is a climbing stage. This setting increases the kinetic energy consumed by the airflow entering the cabinet 1. If there is dust in the airflow, the dust is easy to stay in the heat dissipation hole 22 and cannot enter the cabinet 1. As the amount accumulates, after a period of time, the dust may slide out of the heat dissipation hole 22 under the action of its own gravity, thereby preventing some of the dust from entering the cabinet 1. If the electronic components inside the cabinet 1 run at high speed during the peak period of electricity consumption, a large amount of heat is generated. This heat will cause the internal temperature of the cabinet 1 to rise sharply. After reaching the set temperature, the temperature sensor will control the heat dissipation fan through the controller. 24 operates to guide the heat in the cabinet 1 out of the air outlet 21, and achieves a cooling effect by accelerating the flow rate of the heat dissipation airflow. After the cooling is completed, the air outlet 21 is closed by the shielding component 23 to prevent dust from entering, thereby further reducing the amount of dust inside the cabinet 1, thereby reducing the moisture absorption performance of the cabinet 1, so that the humidity in the cabinet 1 is maintained within a suitable range. In addition, the control method of the utility model is automatically controlled by a controller, and the control circuit of the controller can be realized by simple programming by technicians in this field. The provision of power is also common knowledge in this field, and the utility model is mainly used to protect mechanical devices, so the utility model does not explain the control method and circuit connection in detail.

[0024] The shielding assembly 23 includes a shielding turntable 231 coaxially fixed with the output end of the heat dissipation fan 24, a shielding gear 232 is rotatably installed in the air outlet 21, a shielding plate 234 for shielding the air outlet 21 is coaxially fixed to the lower part of the shielding gear 232, the shielding plate 234 is rotatably connected to the cabinet 1, and the rotating end of the shielding plate 234 is provided with a reset torsion spring 235 respectively fixed to the cabinet 1 and the shielding plate 234, and a plurality of shielding teeth meshing with the shielding gear 232 are intermittently provided on the outside of the shielding turntable 231. When the heat dissipation fan 24 is running, it will drive the shielding turntable 231 coaxially fixed with its output end to rotate, and when the shielding turntable 231 rotates, it will pass the reset spring 235 provided on it. The shielding teeth are engaged with the shielding gear 232 to rotate. Since the shielding gear 232 is coaxially fixed with the shielding plate 234, it will drive the shielding plate 234 to rotate and open, thereby maintaining the ventilation performance of the air outlet 21, so that the heat dissipation airflow can flow out of the air outlet 21 smoothly. After the heat dissipation is completed, under the action of the reset torsion spring 235, the shielding plate 234 will automatically close and block the air outlet 21 to prevent dust from entering the cabinet 1 from the air outlet 21. In addition, since the shielding teeth are intermittently arranged, the shielding gear 232 will not be driven to rotate continuously, but the shielding gear 232 will be kept to rotate back and forth within a range, thereby ensuring the smooth flow of the air outlet 21.

[0025] Embodiment 2

[0026] On the basis of the first embodiment, the technical solution proposed in the first embodiment is used to solve the disadvantage that the existing power distribution cabinet will bring external dust into the power distribution cabinet when dissipating heat through air cooling, thereby increasing the humidity inside the power distribution cabinet. However, the setting of the ∧-shaped heat dissipation hole 22 can reduce the amount of dust entering the cabinet 1, but it cannot completely isolate the dust from entering. As time accumulates, a large amount of dust will still accumulate in the cabinet 1, causing the humidity in the cabinet 1 to further increase.

[0027] Reference Figure 1-Figure 4 A striking rod 233 is provided above the shielding gear 232 and is coaxially fixed therewith, and one side of the striking rod 233 is in contact with the inner wall of the air outlet 21. In this embodiment, the striking rod 233 is provided so that the shielding gear 232 will continuously hit the inner wall of the air outlet 21 when it rotates, thereby causing vibration inside the cabinet 1, so that dust is continuously fallen off the electronic components and is discharged from the air outlet 21 under the attraction of its own gravity and the cooling fan 24, thereby reducing the amount of dust in the cabinet 1, reducing its moisture absorption performance, and protecting the electronic components in the cabinet 1.

[0028] The bottom of the inner cavity of the cabinet 1 is conical, and the internal dimensions decrease in order from top to bottom. Since the heat dissipation holes 22 are ∧-shaped, the airflow entering the cabinet 1 moves downward. Under the action of the heat dissipation fan 24, the impact performance of these airflows is relatively large. When they blow onto the electronic components, the dust adsorbed on the electronic components will be blown off. Since the bottom of the inner cavity of the cabinet 1 is conical, the blown dust will slide along the bottom of the inner cavity of the cabinet 1 to the air outlet 21 under the action of its own gravity, and slide out of the cabinet 1 along the air outlet 21, thereby achieving the effect of cleaning dust and reducing humidity.

[0029] A moisture absorbing rod 25 for absorbing moisture is provided in the heat dissipation hole 22, and the moisture absorbing rod 25 is made of cotton material. On rainy days, the outside humidity is relatively high. After the humid air enters the cabinet 1 along the heat dissipation hole 22, the humidity in the cabinet 1 will be increased, and the probability of corrosion of the electronic components inside the cabinet 1 will be increased. In this embodiment, the moisture absorbing rod 25 is provided to absorb moisture from the humid air flowing through the heat dissipation hole 22. If too much moisture is absorbed and condensed into liquid, the liquid will drip from the moisture absorbing rod 25 to the heat dissipation hole 22 and flow out of the cabinet 1 along the heat dissipation hole 22, thereby further reducing the moisture in the cabinet 1.

[0030] Although 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 moisture-proof function, comprising a cabinet body (1), and a mounting filter plate (3) arranged at the bottom of the cabinet body (1) for mounting electronic components, characterized in that: The cabinet (1) is provided with a heat dissipation component (2) for reducing dust ingress; The heat dissipation component (2) comprises an air outlet (21) provided at the bottom of the cabinet (1), and heat dissipation holes (22) provided on both sides of the cabinet (1), wherein the heat dissipation holes (22) are of a ∧-shaped structure, a heat dissipation fan (24) is provided inside the air outlet (21), and a dust shielding component (23) is provided at one end of the air outlet (21), a temperature sensor is provided in the inner cavity of the cabinet (1), and a controller electrically connected to the temperature sensor and the heat dissipation fan (24) is provided in the cabinet (1).

2. A power distribution cabinet with moisture-proof function according to claim 1, characterized in that: The shielding assembly (23) comprises a shielding rotating disk (231) coaxially fixed to the output end of the heat dissipation fan (24); a shielding gear (232) is rotatably mounted in the air outlet (21); a shielding plate (234) for shielding the air outlet (21) is coaxially fixed to the lower part of the shielding gear (232); the shielding plate (234) is rotatably connected to the cabinet (1); and a return torsion spring (235) is provided at the rotating end of the shielding plate (234) and is respectively fixed to the cabinet (1) and the shielding plate (234).

3. A power distribution cabinet with moisture-proof function according to claim 2, characterized in that: The shielding rotating disk (231) is provided with a plurality of shielding teeth intermittently on the outside thereof, which teeth mesh with the shielding gear (232).

4. The power distribution cabinet with moisture-proof function according to claim 3, characterized in that: A striking rod (233) is provided above the shielding gear (232) and is coaxially fixed thereto, and one side of the striking rod (233) is in contact with the inner wall of the air outlet (21).

5. The power distribution cabinet with moisture-proof function according to claim 1, characterized in that: The bottom of the inner cavity of the cabinet (1) is conical, and the internal dimensions decrease in order from top to bottom.

6. The power distribution cabinet with moisture-proof function according to claim 1, characterized in that: A moisture absorbing rod (25) for absorbing moisture is arranged in the heat dissipation hole (22), and the moisture absorbing rod (25) is made of cotton material.

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