Moisture-proof power distribution cabinet

Abstract

The invention discloses a moisture-proof power distribution cabinet which comprises a cabinet body and a cabinet door, the cabinet door can rotate relative to the cabinet body, a rubber sealing strip is installed on the edge of the side, close to the cabinet body, of the cabinet door, a ventilation opening is formed in the side face of the cabinet body, a fan is arranged at the bottom of the cabinet body, and an air pipe mechanism used for condensing water drops is arranged on the outer side of the cabinet body. And the fan is communicated with the air pipe mechanism. When the outside is in a rainy day, the fan is turned on, so that the fan blows and draws external air, the air flows from bottom to top, the fan mainly exhausts air through the air pipe mechanism, water vapor in the external air is condensed into water drops through the air pipe mechanism, and the humidity of the air pumped into the cabinet body through the fan is greatly reduced. The air pumped by the fan is blown outwards from the inside of the power distribution cabinet, so that the flowing air not only takes away hot air and moisture in the cabinet body, but also prevents external moisture from entering the cabinet body, thereby achieving the effects of dehumidification and heat dissipation.

Description

Technical Field

[0001] The invention relates to the technical field of power distribution cabinets, and in particular to a moisture-proof power distribution cabinet. Background Art

[0002] The distribution cabinet is an important equipment for power distribution, control and protection in the power system. It has the characteristics of small size, easy installation, special technical performance, fixed position and unique configuration function. Therefore, the distribution box is widely used in various distribution lines.

[0003] Because a large number of electrical components are installed inside the distribution cabinet, it is necessary to cool the electrical components inside the distribution cabinet and keep the internal environment of the distribution cabinet dry; however, outdoor distribution cabinets are easily affected by the external environment when in use; For example, on rainy days, if the vents remain open, rain or cold air from outside can easily enter the cabinet with the wind, causing the cabinet to be too humid and causing short circuits in electronic components. However, if the vents are blocked, the high-temperature air inside the cabinet will be difficult to discharge, making it difficult to dissipate heat. Summary of the invention

[0004] In order to solve at least one of the technical problems mentioned in the background technology, an object of the present invention is to provide a moisture-proof distribution cabinet to achieve the effects of dehumidification and heat dissipation.

[0005] To achieve the above object, the present invention provides the following technical solution: a moisture-proof power distribution cabinet, comprising a cabinet body and a cabinet door, a vent is provided on the side of the cabinet body, a fan is provided at the bottom of the cabinet body, a duct mechanism for condensing water droplets is provided on the outside of the cabinet body, and the fan is connected to the duct mechanism; The duct mechanism includes a vertical pipe fixedly installed on the outside of the cabinet, a curved pipe is installed on the top of the vertical pipe, the curved pipe has a side opening away from the vertical pipe facing downward, a heating element and a condensation plate are arranged in sequence in the vertical direction in the vertical pipe, the condensation plate is obliquely arranged on the inner wall of the vertical pipe, a water collecting box is arranged on the side surface of the vertical pipe, a through hole connected to the water collecting box is opened on the side wall of the vertical pipe and located at the condensation plate, a water outlet is opened on the lower side of the water collecting box, and a one-way water filter cloth is arranged at the water outlet.

[0006] An air outlet is provided on the upper side of the cabinet body, a one-way air outlet mechanism is provided at the air outlet, and a hole-shielding mechanism for blocking the air outlet is installed in the cabinet body.

[0007] The one-way air outlet mechanism includes a cover for blocking the air outlet, a connecting rod is fixedly installed on the lower side of the cover, a column tube is sleeved on the outer side of the connecting rod, a spring is fixedly connected between the connecting rod and the inner wall of the column tube, a bracket is fixedly installed on the bottom of the column tube, and the bracket is fixedly installed on the inner wall of the cabinet.

[0008] The hole-covering mechanism includes an electric slide rail fixedly installed on the inner wall of the cabinet, an electric slider is slidably arranged on the electric slide rail, a cover plate is fixedly installed on one side of the electric slider, and a through hole matching the vent is opened on the cover plate. In the initial state, the through hole is connected to the vent. When it rains outside, the through hole is misaligned with the vent, and the cover plate covers the vent.

[0009] The fan comprises a partition fixedly mounted on the bottom of the cabinet, the partition is provided with a hole, the hole is communicated with the vertical pipe, and a fan and an electric motor for driving the fan to rotate are arranged directly above the hole.

[0010] A baffle is arranged on the inner wall of the cabinet and above the fan, and a plurality of air holes are opened on the baffle.

[0011] There are multiple condensation plates, which are staggeredly distributed on the inner wall of the vertical pipe along the vertical direction.

[0012] A one-way air inlet valve is arranged at the opening of the curved pipe.

[0013] Compared with the prior art, the beneficial effect of the present invention is as follows: when it is raining outside, the fan is turned on, so that the fan blows and draws the outside air, causing the air to flow from bottom to top, wherein the fan mainly draws air through the air duct mechanism, and condenses the water vapor in the outside air into water droplets through the air duct mechanism, so that the humidity of the air pumped into the cabinet by the fan is greatly reduced, because the gas pumped by the fan is blown from the inside of the distribution cabinet to the outside, so that the flowing air not only takes away the heat and moisture in the cabinet, but also prevents the external moisture from entering the cabinet, thereby achieving the effect of dehumidification and heat dissipation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a rear view of the overall structure of the present invention; Figure 3 It is a schematic diagram of the structure of the air duct mechanism of the present invention; Figure 4 It is a schematic diagram of the structure of the fan of the present invention; Figure 5 It is a schematic diagram of the hole shielding mechanism of the present invention; Figure 6 It is a schematic diagram of the one-way air outlet mechanism of the present invention.

[0015] In the figure: 1. cabinet body; 2. cabinet door; 3. vent; 4. hole-shielding mechanism; 41. electric slide rail; 42. electric slider; 43. cover plate; 44. perforation; 5. fan; 51. partition; 52. hole; 53. fan; 54. electric motor; 55. baffle; 56. air hole; 6. duct mechanism; 61. vertical pipe; 62. elbow; 63. heating element; 64. condensation plate; 65. water collecting box; 66. through hole; 67. water outlet; 68. one-way water filter cloth; 7. air outlet; 8. one-way air outlet mechanism; 81. cover; 82. connecting rod; 83. column; 84. spring; 85. bracket. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0017] See also Figure 1 The present embodiment provides a moisture-proof power distribution cabinet, including a cabinet body 1 and a cabinet door 2. The cabinet door 2 can rotate relative to the cabinet body 1, so that the cabinet door 2 can be opened to facilitate the placement of electronic components in the cabinet body 1. A rubber seal is installed at the edge of the cabinet door 2 on one side close to the cabinet body 1. After the cabinet door 2 is closed, the rubber seal blocks the gap between the cabinet door 2 and the cabinet body 1, thereby preventing external air or rainwater from entering through the gap between the cabinet body 1 and the cabinet door 2.

[0018] See also Figure 1 A vent 3 is provided on the side of the cabinet 1. When the weather outside is fine, the hot air generated by the heat dissipation of the electronic components inside the cabinet 1 is heat-exchanged with the outside air through the vent 3, thereby achieving the heat dissipation operation inside the power distribution cabinet.

[0019] However, on rainy days, if the vent 3 remains open, external rain or damp and cold air can easily enter the cabinet 1 with the wind, causing the cabinet 1 to be too humid and causing short circuits in electronic components. However, if the vent 3 is blocked, the high-temperature air inside the cabinet 1 is difficult to be discharged to the outside, making it difficult to dissipate heat.

[0020] See also Figure 1 and Figure 2 In order to solve the above technical problems, a hole-blocking mechanism 4 for blocking the ventilation opening 3 is installed in the cabinet 1, a fan 5 is arranged at the bottom of the cabinet 1, and a duct mechanism 6 for condensing water droplets is arranged outside the cabinet 1. The fan 5 is connected with the duct mechanism 6, and an air outlet 7 is opened on the upper side of the cabinet 1, and a one-way air outlet mechanism 8 is arranged at the air outlet 7.

[0021] When it is raining outside, the hole-covering mechanism 4 starts to cover the vent 3, making it difficult for air to pass through the vent 3, thereby reducing the amount of external rain or water vapor entering the cabinet 1 through the vent 3, and then the fan 5 is turned on, so that the fan 5 blows and draws the external air, so that the air flows from bottom to top, wherein the fan 5 mainly exhausts air through the air duct mechanism 6, and condenses the water vapor in the external air into water droplets through the air duct mechanism 6, so that the humidity of the air pumped into the cabinet 1 through the fan 5 is greatly reduced, and at the same time, the air in the cabinet 1 is blocked by the vent 3, so that the air flowing in the cabinet 1 can only be discharged from the one-way air outlet mechanism 8 on the upper side of the cabinet 1, so that the flowing air not only takes away the heat and moisture in the cabinet 1, but also prevents the external moisture from entering the cabinet 1.

[0022] See also Figure 2 and Figure 3 The air duct mechanism 6 includes a vertical pipe 61 fixedly mounted on the outside of the cabinet 1, and a curved pipe 62 is mounted on the top of the vertical pipe 61, and the side of the curved pipe 62 away from the vertical pipe 61 opens downward. Therefore, on rainy days, it is difficult for rainwater to directly enter the curved pipe 62. Only when the curved pipe 62 inhales air from the outside, the water vapor in the air enters the curved pipe 62, preventing rainwater from flowing into the air duct mechanism 6.

[0023] In order to reduce the water vapor in the inhaled air, that is, to reduce the water content in the air, a heating element 63 and a condensation plate 64 are arranged in sequence in the vertical direction in the vertical pipe 61. The external cold air passes through the heating element 63 and the condensation plate 64 in sequence. In order to facilitate the rapid condensation of water droplets from the water vapor in the air at the condensation plate 64, the cold air is heated in advance by passing through the heating element 63 to increase the temperature difference between the condensation plate 64 and the water vapor in the air. Compared with passing the cold air directly through the condensation plate 64, the condensation efficiency is improved. At the same time, part of the water vapor in the air is converted into water vapor, which is convenient for condensation and reduces the humidity of the air.

[0024] The water droplets condensed on the condensation plate 64 need to be collected after being gathered along the condensation plate 64 , otherwise the water collected inside will evaporate into the cabinet 1 .

[0025] See also Figure 2 and Figure 3 In order to solve the above technical problems, a water collecting box 65 is arranged on the side of the vertical pipe 61, and a through hole 66 connected to the water collecting box 65 is opened on the side wall of the vertical pipe 61 and located at the condensation plate 64, wherein the condensation plate 64 is obliquely arranged on the inner wall of the vertical pipe 61, and a water outlet 67 is opened on the lower side of the water collecting box 65, and a one-way water filter cloth 68 is arranged at the water outlet 67.

[0026] After the external cold air enters the vertical pipe 61 and is heated by the heating element 63, the air flows through the condensation plate 64, thereby condensing the water vapor through the condensation plate 64 and condensing it into small water droplets, which are attached to the condensation plate 64. At the same time, as the small water droplets grow larger, due to the inclined setting of the condensation plate 64, under the action of gravity, the small water droplets slide along the condensation plate 64 to the through hole 66 and enter the water collecting box 65. The one-way water filter cloth 68 entering the water collecting box 65 discharges the water in the water collecting box 65 through the water outlet 67, thereby reducing the accumulation of water in the water collecting box 65. At the same time, the bottom of the water collecting box 65 is blocked by the one-way water filter cloth 68, so that when the fan 5 sucks air into the vertical pipe 61, the external air is intercepted from entering the vertical pipe 61 through the outlet of the water collecting box 65, thereby ensuring that the external air mainly enters the vertical pipe 61 through the elbow 62, passes through the heating element 63, and condenses at the condensation plate 64, thereby reducing the air humidity.

[0027] It is worth noting that there are multiple condensation plates 64, which are staggered and distributed along the vertical direction on the inner wall of the vertical tube 61. Multiple condensation plates 64 are provided to improve the condensation efficiency when condensing water vapor in the air.

[0028] A one-way air inlet valve is provided at the opening of the curved pipe 62. When the fan 5 is working, negative pressure is generated in the vertical pipe 61 and the curved pipe 62, so that the one-way air inlet valve opens and external air is sucked into the curved pipe 62. When the fan 5 is not working, the one-way air inlet valve is closed, thereby isolating foreign matter in the external environment during normal time periods.

[0029] See also Figure 1 and Figure 4 The fan 5 includes a partition 51 fixedly installed at the bottom of the cabinet 1, the partition 51 is provided with a hole 52, the hole 52 is connected to the vertical pipe 61, a fan 53 and an electric motor 54 for driving the fan 53 to rotate are arranged directly above the hole 52, and a controller and a humidity sensor for sensing the humidity in the cabinet 1 are also included. The humidity reactor is connected to the controller by electrical signals, and the electric motor 54 is connected to the controller by electrical signals.

[0030] When the humidity sensor senses that the external humidity is high, the humidity sensor transmits an electrical signal to the controller, and the controller transmits an electrical signal to the electric motor 54. The electric motor 54 rotates, driving the fan 53 to rotate. The induced airflow flows from bottom to top, thereby drawing air out of the vertical pipe 61 and sending it into the cabinet 1.

[0031] In order to make the airflow driven by the fan 53 be roughly uniformly transported throughout the cabinet 1, a baffle 55 is provided on the inner wall of the cabinet 1 and above the fan 53, and a plurality of air holes 56 are provided on the baffle 55. The airflow driven by the fan 53 is blown onto the baffle 55, and under the obstruction of the baffle 55, part of the airflow flows along the lower side wall of the baffle 55 to the air holes 56 at the edge of the baffle 55, and then flows upward, so that under the action of the baffle 55, the airflow driven by the fan 53 is roughly uniformly dispersed horizontally and flows upward, thereby improving the heat dissipation efficiency and increasing the airflow coverage area 81, which helps heat dissipation and dehumidification.

[0032] See also Figure 1 and Figure 6 The one-way air outlet mechanism 8 includes a cover 81 for blocking the air outlet 7, a connecting rod 82 is fixedly installed on the lower side of the cover 81, a column 83 is sleeved on the outer side of the connecting rod 82, a spring 84 is fixedly connected between the connecting rod 82 and the inner wall of the column 83, a bracket 85 is fixedly installed at the bottom of the column 83, and the bracket 85 is fixedly installed on the inner wall of the cabinet 1.

[0033] During the process of air flow from bottom to top in the cabinet 1, since the fan 53 continuously delivers external air from the vertical pipe 61 into the cabinet 1, and the vent 3 is blocked by the hole-shielding mechanism 4, the pressure in the cabinet 1 will increase, thereby pushing the cover 81 to move away from the bracket 85. As a result, the cover 81 will drive the connecting rod 82 to move upward relative to the column 83 during the movement, thereby causing the spring 84 to be tensilely deformed, and elastic potential energy is accumulated inside to prepare for the resetting of the cover 81. At the same time, the cover 81 moves upward to release the blockage of the air outlet 7, so that the gas in the cabinet 1 will be exhausted, heat and moisture will be discharged to the outside through the air outlet 7.

[0034] It is worth mentioning that, in order to facilitate the gas in the cabinet 1 to be more efficiently discharged from the air outlet 7, the upper side of the cabinet 1 is set to be a triangular prism, and the air outlet 7 is located on the upper side of the triangular prism. Therefore, when the airflow flows upward, it will flow upward along the edge of the upper side of the cabinet 1 and quickly flow to the air outlet 7.

[0035] See also Figure 1 and Figure 5 The hole-shielding mechanism 4 includes an electric slide rail 41 fixedly mounted on the inner wall of the cabinet 1, an electric slider 42 is slidably arranged on the electric slide rail 41, a cover plate 43 is fixedly mounted on one side of the electric slider 42, and a through hole 44 matching the vent 3 is opened on the cover plate 43. In the initial state, the through hole 44 is connected to the vent 3. When it rains outside, the through hole 44 is misaligned with the vent 3, and the cover plate 43 covers the vent 3. The electric slider 42 is connected to the controller by electrical signals.

[0036] When the humidity sensor senses that the external humidity is high, the humidity sensor transmits an electrical signal to the controller, and the controller transmits an electrical signal to the electric slider 42. The electric slider 42 drives the cover plate 43 to move, so that the perforation 44 on the cover plate 43 is misaligned with the vent 3, and the cover plate 43 closes the vent 3 at the same time.

[0037] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered exemplary and non-restrictive in all respects, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention.

Claims

1. A moisture-proof power distribution cabinet, comprising a cabinet body (1) and a cabinet door (2), wherein a ventilation hole (3) is provided on the side of the cabinet body (1), and a fan (5) is provided at the bottom of the cabinet body (1), characterized in that: The cabinet (1) is provided with an air duct mechanism (6) for condensing water droplets on the outside, and the fan (5) is connected to the air duct mechanism (6); The air duct mechanism (6) comprises a vertical pipe (61) fixedly mounted on the outside of the cabinet (1); a curved pipe (62) is mounted on the top of the vertical pipe (61); a side of the curved pipe (62) away from the vertical pipe (61) opens downward; a heating element (63) and a condensation plate (64) are arranged in sequence in the vertical direction in the vertical pipe (61); the condensation plate (64) is arranged obliquely on the inner wall of the vertical pipe (61); a water collecting box (65) is arranged on the side surface of the vertical pipe (61); a through hole (66) connected to the water collecting box (65) is provided on the side wall of the vertical pipe (61) and located at the condensation plate (64); a water outlet (67) is provided on the lower side of the water collecting box (65); a one-way water filter cloth (68) is provided at the water outlet (67).

2. The moisture-proof distribution cabinet according to claim 1, characterized in that: An air outlet (7) is provided on the upper side of the cabinet (1), a one-way air outlet mechanism (8) is provided at the air outlet (7), and a hole-blocking mechanism (4) for blocking the air outlet (3) is installed in the cabinet (1).

3. The moisture-proof distribution cabinet according to claim 2, characterized in that: The one-way air outlet mechanism (8) comprises a cover (81) for blocking the air outlet (7); a connecting rod (82) is fixedly mounted on the lower side of the cover (81); a column tube (83) is sleeved on the outer side of the connecting rod (82); a spring (84) is fixedly connected between the connecting rod (82) and the inner wall of the column tube (83); a bracket (85) is fixedly mounted on the bottom of the column tube (83); and the bracket (85) is fixedly mounted on the inner wall of the cabinet (1).

4. The moisture-proof distribution cabinet according to claim 2, characterized in that: The hole-covering mechanism (4) comprises an electric slide rail (41) fixedly mounted on the inner wall of the cabinet (1), an electric slider (42) being slidably mounted on the electric slide rail, a cover plate (43) being fixedly mounted on one side of the electric slider (42), a through hole (44) matching the vent (3) being formed on the cover plate (43), the through hole (44) being connected to the vent (3) in an initial state, and when it rains outside, the through hole (44) is misaligned with the vent (3), and the cover plate (43) covers the vent (3).

5. The moisture-proof distribution cabinet according to claim 1, characterized in that: The fan (5) comprises a partition (51) fixedly mounted on the bottom of the cabinet (1); the partition (51) is provided with a hole (52); the hole (52) is connected to the vertical pipe (61); and a fan (53) and an electric motor (54) for driving the fan (53) to rotate are arranged directly above the hole (52).

6. The moisture-proof power distribution cabinet according to claim 5, characterized in that: A baffle (55) is provided on the inner wall of the cabinet (1) and above the fan (53), and a plurality of air holes (56) are provided on the baffle (55).

7. The moisture-proof power distribution cabinet according to claim 1, characterized in that: There are a plurality of condensation plates (64), which are staggeredly distributed on the inner wall of the vertical tube (61) along the vertical direction.

8. The moisture-proof power distribution cabinet according to claim 1, characterized in that: A one-way air intake valve is provided at the opening of the curved pipe (62).

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