A drawer type power distribution cabinet with ventilation and moisture-proof structure

Abstract

The utility model discloses a drawer type power distribution cabinet with ventilation and moisture-proof structure relates to drawer type power distribution cabinet technical field, including power distribution drawer, the rectangular cavity both sides inner wall of power distribution drawer installs air inlet ventilation box and air outlet ventilation box respectively, and both through first connecting pipe, second connecting pipe and communicate outside, and the first connecting pipe is provided with semiconductor dehumidification module in, and the second connecting pipe is provided with air -exhausting fan in, outside air is condensed water vapor through semiconductor dehumidification module refrigeration, dry filler adsorbs moisture, and enters the cabinet through air inlet ventilation box, air -exhausting fan drives air to exhaust through air outlet ventilation box, forms circulating air current to accelerate heat dissipation, and semiconductor dehumidification module realizes water vapor condensation and discharge through semiconductor refrigeration piece, fin and drain pipe, and cooperate radiator and heat dissipation fan and discharge hot end heat, and the structure is combined through active ventilation and double dehumidification, and effectively solve the component failure problem of poor heat dissipation and damp of existing power distribution cabinet.

Description

Technical Field

[0001] This utility model relates to the field of drawer-type power distribution cabinet technology, and in particular to a drawer-type power distribution cabinet with a ventilation and moisture-proof structure. Background Technology

[0002] Existing drawer-type distribution cabinets generally face challenges in ventilation and heat dissipation efficiency and environmental humidity control during operation. Traditional distribution cabinets rely heavily on natural ventilation, and unreasonable airflow organization leads to heat accumulation inside the cabinet. Electrical components are prone to failure due to long-term exposure to high-temperature environments. At the same time, moisture in the air can easily condense inside the cabinet, causing component corrosion, short circuits, and other hidden dangers, which seriously affect the reliability and service life of the equipment.

[0003] Specifically, existing technologies lack integrated active ventilation and dehumidification solutions tailored to the structural characteristics of drawer-type distribution cabinets; under natural ventilation mode, air circulation is poor, making it impossible to effectively expel hot and humid air; single dehumidification methods (such as desiccants) are difficult to cope with high humidity environments and have high maintenance costs; therefore, we propose a drawer-type distribution cabinet with a ventilation and moisture-proof structure. Utility Model Content

[0004] The main purpose of this utility model is to provide a drawer-type power distribution cabinet with a ventilation and moisture-proof structure, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A drawer-type power distribution cabinet with a ventilation and moisture-proof structure includes a power distribution drawer. On the inner walls of the rectangular cavity of the power distribution drawer, a cuboid-shaped air inlet vent box and an air outlet vent box are respectively attached and installed. The air inlet vent box and the air outlet vent box are respectively densely arranged with a first ventilation hole and a second ventilation hole on the side facing the center of the rectangular cavity of the power distribution drawer. One end of the air inlet vent box is connected to a first connecting pipe, and one end of the air outlet vent box is connected to a second connecting pipe. The other ends of the first and second connecting pipes pass through the outer wall of the power distribution drawer. A semiconductor dehumidification module is installed inside the first connecting pipe, and an exhaust fan is installed inside the second connecting pipe.

[0006] Preferably, the semiconductor dehumidification module consists of a wind box, a semiconductor cooling chip, and several heat sinks. The upper outer wall of the wind box is fitted into the upper inner cavity of the first connecting pipe, and a hot air outlet connected to the inner cavity of the wind box is provided above the first connecting pipe near the air inlet. A rectangular inlet is provided on the lower side of the wind box near the air inlet of the first connecting pipe. The semiconductor cooling chip is fixedly installed on the lower bottom surface of the wind box with its cooling end face downward. A groove is provided downward below the first connecting pipe near the air inlet, and the lower end of the heat sink is installed in the groove. A heat-conducting sheet is fixedly connected between the top of the heat sink and the lower end face of the semiconductor cooling chip.

[0007] Preferably, a heat sink is fixedly installed on the upper end face of the semiconductor cooling chip, a cooling fan is fixedly installed above the heat sink inside the air box, and a drain pipe is fixedly connected to the lower part of the groove.

[0008] Preferably, the outer end face of the power distribution drawer is provided with a first connection port and a second connection port for fitting and connecting the first connecting pipe and the second connecting pipe.

[0009] Preferably, both the air inlet vent box and the air outlet vent box are filled with drying filler, and the drying filler is preferably calcium chloride desiccant.

[0010] Preferably, a first mesh cover and a second mesh cover are fixedly installed in the air inlet of the first connecting pipe and the air outlet of the second connecting pipe, respectively.

[0011] Compared with the prior art, the present invention has the following beneficial effects: 1. This utility model uses a semiconductor dehumidification module to cool and condense water vapor, combined with a drying packing to adsorb residual moisture, thus providing dual protection for dryness inside the cabinet and achieving a highly efficient dehumidification effect.

[0012] 2. In this utility model, air is driven by an exhaust fan through the intake ventilation box, then through the rectangular cavity of the power distribution drawer, and finally through the exhaust ventilation box for circulation, thereby accelerating the removal of heat.

[0013] 3. The air inlet and air outlet boxes in this utility model are integrated on both sides of the power distribution drawer in conjunction with the first connecting pipe and the first connecting pipe, without occupying internal electrical space, and the design of the first and second connecting ports facilitates modular maintenance.

[0014] 4. The first and second mesh covers in this utility model can prevent dust and impurities from entering, and the drain pipe can promptly discharge condensate to avoid secondary dampness. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2This is an exploded view of this utility model; Figure 3 This is a cross-sectional view of the connection between the air outlet vent box and the second connecting pipe in this utility model; Figure 4 This is a cross-sectional view showing the connection between the air intake vent box and the first connecting pipe in this utility model; Figure 5 This is a utility model Figure 4 Enlarged view of circle A.

[0016] In the diagram: 1. Power distribution drawer; 11. First connection port; 12. Second connection port; 2. Air inlet vent box; 21. First vent hole; 3. Air outlet vent box; 31. Second vent hole; 4. First connecting pipe; 41. First mesh cover; 42. Hot air outlet; 43. Groove; 44. Drain pipe; 5. Second connecting pipe; 51. Second mesh cover; 6. Semiconductor dehumidification module; 61. Air box; 62. Rectangular inlet; 63. Radiator; 64. Semiconductor cooling chip; 65. Heat sink; 66. Cooling fan; 67. Heat conduction plate; 7. Exhaust fan; 8. Drying filler. Detailed Implementation

[0017] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0018] like Figures 1-5 As shown, a drawer-type power distribution cabinet with a ventilation and moisture-proof structure includes a power distribution drawer 1. On the inner walls of the rectangular cavity of the power distribution drawer 1, cuboid-shaped air inlet vents 2 and air outlet vents 3 are respectively attached and fitted. First ventilation holes 21 and second ventilation holes 31 are densely arranged on the side of the air inlet vents 2 and the side of the air outlet vents 3 facing the center of the rectangular cavity of the power distribution drawer 1, respectively. One end of the air inlet vents 2 is connected to a first connecting pipe 4, and one end of the air outlet vents 3 is connected to a second connecting pipe 5. The other ends of the first connecting pipe 4 and the second connecting pipe 5 pass through the outer wall of the power distribution drawer 1. Therefore, the power distribution drawer... The rectangular cavity in drawer 1 is connected to the outside space by an air inlet vent box 2 and an air outlet vent box 3 on both sides, and together with the first connecting pipe 4 and the second connecting pipe 5, forming an airflow channel. A semiconductor dehumidification module 6 is installed in the first connecting pipe 4. The semiconductor dehumidification module 6 is located at the air inlet end of the rectangular cavity in the power distribution drawer 1 and is mainly used to remove moisture from the incoming air. An exhaust fan 7 is installed in the second connecting pipe 5. After the exhaust fan 7 is powered on, it can force the hot air in the rectangular cavity of the power distribution drawer 1 to be extracted through the second connecting pipe 5 and the air outlet vent box 3.

[0019] refer to Figure 2 , Figure 3 and Figure 4As shown, the outer end face of the power distribution drawer 1 is provided with a first connection port 11 and a second connection port 12 for fitting and connecting the first connecting pipe 4 and the second connecting pipe 5, respectively. That is, the outer walls of the first connecting pipe 4 and the second connecting pipe 5 are fitted and installed in the first connection port 11 and the second connection port 12, respectively. The air inlet vent box 2 and the air outlet vent box 3 are filled with drying filler 8. The drying filler 8 is respectively set in the air inlet vent box 2 and the air outlet vent box 3 on both sides of the rectangular inner cavity of the power distribution drawer 1 for air inlet and air outlet, which is used to dehumidify the air inlet and air outlet on both sides of the rectangular inner cavity of the power distribution drawer 1. The drying filler 8 is preferably calcium chloride desiccant. The first mesh cover 41 and the second mesh cover 51 are fixedly installed in the air inlet of the first connecting pipe 4 and the air outlet of the second connecting pipe 5, respectively. The first mesh cover 41 and the second mesh cover 51 are both set on the outside of the power distribution drawer 1.

[0020] refer to Figure 5 As shown, the semiconductor dehumidification module 6 consists of an air box 61, a semiconductor cooling chip 64, and several heat sinks 65. The cooling end face of the semiconductor cooling chip 64 faces downward, and cooling is achieved using the lower end face of the semiconductor cooling chip 64. The heat sinks 65 guide the cooling downward, and are divided into two groups, front and rear, which are equidistantly installed at the lower end of the first connecting pipe 4 near the air inlet. The heat sinks 65 are inclined, and on the horizontal plane, the extension line of the heat sink 65 forms a 45-degree angle with the edge line of the air inlet of the first connecting pipe 4. A radiator 63 is fixedly installed on the upper end face of the semiconductor cooling chip 64. A cooling fan 66 is fixedly installed above the radiator 63 inside the air box 61. The upper outer wall of the air box 61 is fitted into the upper inner cavity of the first connecting pipe 4. A hot air outlet 42 connected to the inner cavity of the air box 61 is provided above the air inlet of the first connecting pipe 4. A rectangular inlet 62 is provided on the side of the air box 61 below the air inlet of the first connecting pipe 4. When the semiconductor cooling chip 64 and the cooling fan 66 are powered on and working, the upper end face of the semiconductor cooling chip 64 will generate high temperature. The radiator 63 will then diffuse the heat upwards, and the cooling fan 66 will guide the air to flow through the radiator 63 and exhaust the heat upwards from inside the air box 61.

[0021] refer to Figure 5 As shown, the thermoelectric cooler 64 is fixedly installed on the bottom surface of the air box 61. A groove 43 is provided downward below the first connecting pipe 4 near the air inlet. The cooling end face of the thermoelectric cooler 64 causes water vapor in the air to condense into liquid water, which flows into the groove 43 along the heat sink 65. The groove 43 collects and guides the condensed water from the water vapor on several heat sinks 65. The lower end of the heat sink 65 is installed in the groove 43. A heat-conducting plate 67 is fixedly connected between the top end of the heat sink 65 and the lower end face of the thermoelectric cooler 64. A drain pipe 44 is fixedly connected to the bottom of the groove 43, which can drain the condensed water in the groove 43 in a timely manner.

[0022] The working principle of this drawer-type electrical distribution cabinet with ventilation and moisture-proof structure: Air intake dehumidification: External air enters the first connecting pipe 4 through the first mesh cover 41, and first passes through the semiconductor cooling chip 64 in the semiconductor dehumidification module 6 to condense water vapor. The condensate flows into the drain pipe 44 along the heat sink 65, and is further dehumidified by the drying filler 8 filled in the air intake vent box 2. The dry and cold air enters the rectangular inner cavity of the power distribution drawer 1 through the first vent hole 21. The drying filler 8 in the air outlet vent box 3 is mainly used to absorb the moisture in the backflow air. Internal circulation: After the exhaust fan 7 is started, the air in the rectangular inner cavity of the power distribution drawer 1 is drawn into the exhaust vent box 3 through the second vent hole 31 and discharged through the second connecting pipe 5, while taking away heat at the same time; Heat dissipation mechanism: The heat from the hot end of the semiconductor cooling chip 64 is discharged by the heat sink 63 and the cooling fan 66 through the hot air outlet 42, preventing hot air from flowing back into the cabinet.

[0023] It should be added that the cooling fan 66 works in conjunction with the exhaust fan 7 to ensure that the hot end of the semiconductor cooling chip 64 in the semiconductor dehumidification module 6 is dissipated in a timely manner.

[0024] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A drawer-type power distribution cabinet with a ventilated and moisture-proof structure, comprising a power distribution drawer (1), characterized in that: On the inner walls of the rectangular cavity of the power distribution drawer (1), there are cuboid-shaped air inlet vent box (2) and air outlet vent box (3), and the air inlet vent box (2) and air outlet vent box (3) are respectively densely arranged with first ventilation hole (21) and second ventilation hole (31) on the side facing the center of the rectangular cavity of the power distribution drawer (1). One end of the air inlet vent box (2) is connected to a first connecting pipe (4), and one end of the air outlet vent box (3) is connected to a second connecting pipe (5). The other ends of the first connecting pipe (4) and the second connecting pipe (5) pass through the outer wall of the power distribution drawer (1). The first connecting pipe (4) is equipped with a semiconductor dehumidification module (6), and the second connecting pipe (5) is equipped with an exhaust fan (7).

2. The drawer-type power distribution cabinet with a ventilated and moisture-proof structure according to claim 1, characterized in that: The semiconductor dehumidification module (6) is composed of a wind box (61), a semiconductor cooling chip (64) and several heat sinks (65). The upper outer wall of the wind box (61) is fitted into the upper inner cavity of the first connecting pipe (4), and a hot air outlet (42) connected to the inner cavity of the wind box (61) is provided above the air inlet of the first connecting pipe (4). A rectangular inlet (62) is provided on the side of the wind box (61) near the air inlet of the first connecting pipe (4). The semiconductor cooling chip (64) is fixedly installed on the lower bottom surface of the wind box (61), with the cooling end face of the semiconductor cooling chip (64) facing downward. A groove (43) is provided downward below the air inlet of the first connecting pipe (4). The lower end of the heat sink (65) is installed in the groove (43). A heat-conducting plate (67) is fixedly connected between the top of the heat sink (65) and the lower end face of the semiconductor cooling chip (64).

3. The drawer-type power distribution cabinet with a ventilated and moisture-proof structure according to claim 2, characterized in that: A heat sink (63) is fixedly installed on the upper end face of the semiconductor cooling chip (64), a cooling fan (66) is fixedly installed above the heat sink (63) in the air box (61), and a drain pipe (44) is fixedly connected to the lower part of the groove (43).

4. The drawer-type power distribution cabinet with a ventilated and moisture-proof structure according to claim 1, characterized in that: The power distribution drawer (1) has a first connection port (11) and a second connection port (12) on both sides of its outer end face for fitting and connecting the first connecting pipe (4) and the second connecting pipe (5).

5. The drawer-type power distribution cabinet with a ventilated and moisture-proof structure according to claim 1, characterized in that: Both the air inlet vent box (2) and the air outlet vent box (3) are filled with drying filler (8), and the drying filler (8) is preferably calcium chloride desiccant.

6. The drawer-type power distribution cabinet with a ventilated and moisture-proof structure according to claim 1, characterized in that: A first mesh cover (41) and a second mesh cover (51) are fixedly installed in the air inlet of the first connecting pipe (4) and the air outlet of the second connecting pipe (5), respectively.

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