Outdoor waterproof power distribution cabinet

Abstract

The invention relates to the technical field of power distribution cabinets, and discloses an outdoor waterproof power distribution cabinet which comprises a cabinet body and a backboard, the cabinet body is composed of an inner-layer cabinet body and an outer-layer cabinet body, the inner-layer cabinet body is internally provided with a space for installing electric appliances, and the outer-layer cabinet body is arranged on the outer side of the inner-layer cabinet body; space allowing airflow to pass through is reserved between the tops, the back faces and the two sides of the inner-layer cabinet body and the outer-layer cabinet body, partition plates are arranged between the two sides of the outer-layer cabinet body and the two sides of the inner-layer cabinet body, and the space between the inner-layer cabinet body and the outer-layer cabinet body is divided into a heat dissipation channel formed by side face spaces and an air inlet channel formed by the top spaces and the back face spaces through the partition plates. Back plates are arranged on the back surfaces of the inner-layer cabinet body and the outer-layer cabinet body for sealing, inner-layer cabinet body air outlets are formed in the bottoms of the two sides of the inner-layer cabinet body, inner-layer cabinet body air inlets are formed in the top of the inner-layer cabinet body, outer-layer cabinet body air outlets are formed in the tops of the two sides of the outer-layer cabinet body, and outer-layer cabinet body air inlets are formed in the bottoms of the back plates; a backflow assembly is arranged at the position, between the outer-layer cabinet body air inlet and the inner-layer cabinet body air inlet, of the back of the inner-layer cabinet body.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of power distribution cabinets, in particular to an outdoor waterproof power distribution cabinet. BACKGROUND

[0002] A power distribution cabinet (also known as a power distribution box or an electric control cabinet) is an integrated device for power distribution, control, protection and monitoring in an electric power system, which is equivalent to an "intelligent dispatch center" of an electric power network. The power distribution cabinet reasonably distributes the electric power transmitted by a superior power source (such as a transformer or a generator) to a subordinate power consumption device, and guarantees the safe operation of a circuit. The power distribution cabinet not only bears the basic function of power distribution, but also integrates multiple intelligent management capabilities such as circuit protection, power control and operation monitoring. The power distribution cabinet is usually composed of key components such as a bus system, a circuit breaker, a disconnector, a protection relay and a measuring instrument, and realizes flexible configuration of a circuit through modular design. According to different application scenarios, the power distribution cabinet can be divided into low-voltage fixed type, drawer type, outdoor rainproof type and explosion-proof type, and can meet the installation requirements of ordinary commercial buildings and special environments such as petroleum and chemical industry. In terms of function realization, the power distribution cabinet can complete the basic on-off of a circuit through traditional manual operation, or can be equipped with an intelligent monitoring system to realize real-time acquisition of parameters such as voltage, current and power factor, remote control and energy efficiency management. The protection structure design of the power distribution cabinet takes into account the heat dissipation and sealing requirements, and ensures stable operation in humid, dusty and other harsh environments. With the advancement of technology, modern power distribution cabinets are developing towards digitization and networking, integrating advanced functions such as fault diagnosis and energy consumption analysis, and becoming an indispensable key device in the construction of smart grids, providing safe and reliable power supply for industrial production, commercial operation and infrastructure.

[0003] The existing outdoor power distribution cabinet has the following defects: in terms of moisture prevention, it relies on simple sealing design or heaters, and it is difficult to deal with the problem of continuous condensation in high-humidity environments, resulting in corrosion of internal components; the heat dissipation system mostly uses natural ventilation or ordinary fans, and the heat dissipation efficiency is insufficient in high-temperature environments, which easily causes equipment overheating and aging; the protection structure is single, and it is difficult to balance the dustproof, rainproof and ventilation requirements, and the protection performance decreases after long-term use. SUMMARY

[0004] (I) Technical problems solved

[0005] In view of the defects of the prior art, the application provides an outdoor waterproof power distribution cabinet, which has the advantages of moisture and sun protection, and solves the problem that the power distribution cabinet is easily damaged in high-temperature and high-humidity outdoor use.

[0006] (II) Technical solutions

[0007] In order to achieve the above-mentioned moisture-proof and sun-proof purposes, the application provides the following technical solutions: an outdoor waterproof power distribution cabinet, comprising a cabinet body and a back plate, the cabinet body is composed of an inner layer cabinet body and an outer layer cabinet body, a space for installing a power supply is arranged in the inner layer cabinet body, and the space is closed and opened through a cabinet door arranged on the front face,

[0008] The outer layer cabinet body is arranged outside the inner layer cabinet body, spaces for airflow passing through are left between the top, back and two sides of the inner layer cabinet body and the outer layer cabinet body, a partition plate is arranged between the two sides of the outer layer cabinet body and the inner layer cabinet body, the space between the inner layer cabinet body and the outer layer cabinet body is divided into a heat dissipation channel formed by the side space and an air inlet channel formed by the top and back space through the partition plate, and the back of the inner layer cabinet body and the outer layer cabinet body is sealed by the back plate;

[0009] Inner layer cabinet body air outlets are arranged at the bottoms of the two sides of the inner layer cabinet body, an inner layer cabinet body air inlet is arranged at the top of the inner layer cabinet body, outer layer cabinet body air outlets are arranged at the tops of the two sides of the outer layer cabinet body, an outer layer cabinet body air inlet is arranged at the bottom of the back plate, a backflow component is arranged between the outer layer cabinet body air inlet and the inner layer cabinet body air inlet at the back of the inner layer cabinet body, the backflow component can condense and collect water vapor in the gas, and the cabinet body is provided with a gas pump to drive the movement of the airflow.

[0010] The outer layer cabinet body air outlet and the outer layer cabinet body air inlet form a ventilation structure through horizontal cross beams arranged side by side, the cross beam comprises a middle connecting plate, the inner side of the connecting plate is designed with an upward inner plate, and the outer side of the connecting plate is designed with a downward outer plate, so that the cross section of the cross beam is in the shape of a horizontally laid Z.

[0011] The backflow component is a serpentine pipeline arranged in a transverse direction, and the cabinet body external airflow flows into the backflow component from the outer layer cabinet body air inlet and then flows into the inner layer cabinet body from the inner layer cabinet body air inlet.

[0012] The pipeline at the upper end of the backflow component is provided with a round corner.

[0013] The backflow component is arranged in an array on a mounting plate in the form of a cylinder, arc-shaped fins are arranged on the two sides of the cylinder, a gap is left between the fins and the cylinder, mounting holes are reserved on the mounting plate, and the number and position of the cylinders can be freely adjusted.

[0014] A moisture absorption component is arranged above the backflow component, the moisture absorption component is a pipeline connected to the two side heat dissipation channels, the outer side of the moisture absorption component is wrapped with a moisture absorption sponge, and an evaporation opening is arranged at the corresponding position of the moisture absorption component on the top of the outer layer cabinet body.

[0015] Switches controlled by electricity are arranged at the two ends of the moisture absorption component, so that the moisture absorption component can be connected and closed.

[0016] The dustproof plate is arranged between the moisture absorption assembly and the backflow assembly, and is attracted to the back of the inner cabinet body and the back plate by magnets arranged at both ends.

[0017] The dustproof plate has an inclination angle of 10-15 degrees.

[0018] (III) beneficial effects

[0019] Compared with the prior art, the outdoor waterproof power distribution cabinet has the following beneficial effects:

[0020] 1. The outdoor waterproof power distribution cabinet has the following beneficial effects: in terms of moisture prevention, cold air enters from the bottom of the outer cabinet body, rises along the gap between the back plate and the inner cabinet body, and passes through the specially designed backflow assembly; the three mechanisms of extending the air path, increasing the contact area and reducing the flow rate make the water vapor in the air fully condense and precipitate; the dry air treated finally enters the inner cabinet body through the top opening, greatly reducing the humidity of the air entering the inner cabinet body, and fundamentally solving the high energy consumption problem of the traditional cabinet relying on a heater for moisture prevention; in terms of heat dissipation performance, the inner and outer spaces are accurately separated into independent air inlet channels and heat dissipation channels by the partition plate, and cooperate with the forced convection system driven by the air pump to form the inner cooling air flow from top to bottom and the outer hot exhaust path from bottom to top, not only improving the heat dissipation efficiency, but also effectively reducing the temperature rise of the inner layer caused by direct sunlight through the heat buffering effect of the outer cabinet body; in terms of structural reliability, the composite structure of the double-layer aluminum-magnesium-zinc plate and the stainless steel inner layer not only resists ultraviolet aging but also enhances the wind pressure resistance through the truss-type partition plate, and the modular backflow assembly and plug-in type partition plate design more effectively reduces the maintenance cost; in addition, the collected condensed water is used to clean the dust screen or drive evaporation cooling to realize energy recycling.

[0021] 2. The outdoor waterproof power distribution cabinet has the following beneficial effects: the unique structure of the inner and outer L-shaped reinforcing ribs expands the ventilation opening area while improving the overall bending stiffness, cooperates with the original truss-type partition plate of the double-layer cabinet to form a three-dimensional reinforcing structure network, and the three-layer shielding three-dimensional protection mechanism cooperates with the air flow channel of the double-layer cabinet to form a set of tight protection network, and the outer plate effectively blocks rainwater and splashes, so that the overall power distribution cabinet is more suitable for outdoor use.

[0022] 3、The outdoor waterproof power distribution cabinet, through the introduction of the moisture absorbing assembly, realizes the upgrading of the whole moisture-proof system from passive protection to active adjustment, the wrapped moisture absorbing sponge cooperates with the electric control switch, can not only secondary adsorb residual water vapor, but also can realize self-drying function through intermittent heating, solves the problem of saturation failure of the traditional power distribution cabinet moisture absorbing material, the specially designed dust baffle is fixed by magnetic attraction and has accurate inclination angle, ensures smooth airflow, realizes self-cleaning effect of automatic dust sliding, the detachable characteristic greatly reduces the maintenance difficulty, the system cooperates with the original condensation reflux assembly, constructs three-level moisture-proof barrier, firstly preliminarily blocks external humidity through the Z-shaped cross beam, then completes main condensation and dehumidification in the reflux assembly, finally captures residual moisture by the moisture absorbing sponge, forms a progressive humidity control system, the top evaporation port is arranged skillfully, utilizes the characteristics of natural rising of hot air, realizes efficient discharge of water vapor without affecting the overall heat dissipation performance, the inclined installation angle of the dust baffle is perfectly matched with the airflow channel of the double-layer cabinet body, can not cause the increase of wind resistance, and can effectively guide the dust to settle outside, the integrated design enables the whole power distribution cabinet to keep dry inside in the extreme humid environment, and prolongs the maintenance period through self-drying and self-cleaning functions. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 is a structural schematic diagram of the present application;

[0024] Figure 2 is a back structure schematic diagram of the present application;

[0025] Figure 3 is a structural schematic diagram of the inner layer cabinet body of the present application;

[0026] Figure 4 is a structural schematic diagram of the gap between the inner and outer layer cabinet bodies of the present application;

[0027] Figure 5 is a cold air flow schematic diagram of the present application;

[0028] Figure 6 is an air outlet airflow flow schematic diagram of the outer layer cabinet body of the present application;

[0029] Figure 7 is an air inlet airflow flow schematic diagram of the outer layer cabinet body of the present application;

[0030] Figure 8 is a structural schematic diagram of the second embodiment of the present application;

[0031] Figure 9 is a structural detail schematic diagram of the reflux assembly of the second embodiment of the present application.

[0032] In the figure: 1, cabinet body; 2, back plate; 11, inner layer cabinet body air outlet; 12, inner layer cabinet body air inlet; 21, outer layer cabinet body air outlet; 22, outer layer cabinet body air inlet; 23, dust baffle; 24, moisture absorption assembly; 25, evaporation port; 101, inner layer cabinet body; 102, outer layer cabinet body; 103, partition plate; 221, backflow assembly. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0034] Embodiment one

[0035] Please refer to Figures 1-5 , the outdoor waterproof power distribution cabinet comprises a cabinet body 1 and a back plate 2, the cabinet body 1 is composed of an inner layer cabinet body 101 and an outer layer cabinet body 102, the inner and outer layer cabinet bodies can be made of a composite structure of double-layer aluminum-magnesium-zinc plated plates matched with a stainless steel inner layer, the inner layer cabinet body 101 is internally provided with a space for installing power supply devices and is closed and opened through a front cabinet door, the outer layer cabinet body 102 is arranged outside the inner layer cabinet body 101, the inner layer cabinet body 101 and the outer layer cabinet body 102 are provided with spaces for airflow passing between the top, back and two sides thereof, the space between the outer layer cabinet body 102 and the inner layer cabinet body 101 is divided into a heat dissipation channel constituted by a side space and an air inlet channel constituted by a top space and a back space through a partition plate 103, and the inner layer cabinet body 101 and the outer layer cabinet body 102 are provided with the back plate 2 for sealing the back thereof;

[0036] The inner layer cabinet body 101 is provided with inner layer cabinet body air outlets 11 at the two sides thereof, the inner layer cabinet body 101 is provided with an inner layer cabinet body air inlet 12 at the top thereof, the outer layer cabinet body 102 is provided with outer layer cabinet body air outlets 21 at the two sides of the top thereof, the back plate 2 is provided with an outer layer cabinet body air inlet 22 at the bottom thereof, the inner layer cabinet body 101 is provided with a backflow assembly 221 between the outer layer cabinet body air inlet 22 and the inner layer cabinet body air inlet 12 at the back thereof, the backflow assembly can condense and collect water vapor in the gas, the cabinet body 1 is provided with a drain pipe (not shown) at the bottom thereof, so that the condensed water collected by the backflow assembly 221 can be discharged out of the cabinet body 1, and the cabinet body 1 is provided with a gas pump for driving the movement of the airflow.

[0037] The outer cold air of the cabinet 1 enters the air inlet channel through the outer layer cabinet air inlet 22 at the bottom of the back plate 2. The cold air gradually rises upward along the gap between the back plate 2 and the inner layer cabinet 101. The air humidity is condensed by the backflow assembly 221. The backflow assembly 221 condenses the water vapor in the air by prolonging the flow path of the gas and blocking the flow. The humidity of the cold air flowing into the cabinet 1 is reduced. When the gas enters the inner layer cabinet 101 through the inner layer cabinet air inlet 12, the humidity is lower, which effectively prevents the equipment in the inner layer cabinet 101 from being damp and corroded, prolongs the service life, and reduces the maintenance cost. The cold air flows from top to bottom in the inner layer cabinet 101, which extrudes the hot air in the inner layer cabinet 101 downward. The inner layer cabinet air outlet 11 is arranged at the bottom of the inner layer cabinet 101. The hot air in the inner layer cabinet 101 flows into the heat dissipation channel from the bottom due to the extrusion of the cold air and the arrangement of the air outlet. The hot air rises upward in the heat dissipation channel and flows out of the cabinet 1 through the outer layer cabinet air outlet 21. In the whole process, the heat dissipation channel and the air inlet channel are separated by the gap between the inner layer cabinet 101 and the outer layer cabinet 102 and the partition 103, so that the cold and hot air do not affect each other. At the same time, the cabinet 1 is divided into the inner layer cabinet 101 and the outer layer cabinet 102, and a gap is left for air flow. When the cabinet 1 is used outdoors, the heat transfer path of the external heat is also prolonged under the high temperature and the sun's exposure, which avoids the direct influence of the environment on the electrical equipment in the inner layer cabinet 101.

[0038] Referring to Figures 6-7 The outer layer cabinet air outlet 21 and the outer layer cabinet air inlet 22 are formed by horizontal cross beams arranged side by side. The cross beam includes a connecting plate in the middle. The inner side of the connecting plate is designed with an upward inner plate, and the outer side of the connecting plate is designed with a downward outer plate, so that the cross section of the cross beam is in the shape of a horizontally laid Z.

[0039] The inner and outer plates and the cross beam form an L-shaped reinforcing rib structure, which increases the strength of the structure of the outer layer cabinet air outlet 21 and the outer layer cabinet air inlet 22. Even if the area of the air inlet is increased, the overall strength of the equipment can be ensured. The ventilation performance is improved, and the damage and deformation caused by the insufficient strength of the cabinet 1 are avoided. At the same time, the double-layer shielding formed by the inner and outer plates can block the sun from any angle, so that the sun cannot directly shine into the interior. When it rains, the water droplets entering the cabinet 1 from the air inlet can be effectively intercepted by the inner plate on the cross beam.

[0040] The backflow assembly 221 is a serpentine-shaped pipeline arranged horizontally. The air outside the cabinet 1 flows into the backflow assembly 221 from the outer layer cabinet air inlet 22 and then flows into the inner layer cabinet 101 from the inner layer cabinet air inlet 12. The pipeline at the upper end of the backflow assembly 221 is provided with a rounded corner.

[0041] The reflow assembly 221 is provided with a moisture absorption assembly 24, which is a pipeline communicating with both sides of the heat dissipation channel. The moisture absorption assembly 24 is wrapped with a moisture absorption sponge on the outside. The moisture absorption sponge is used to re-adsorb water vapor and water vapor evaporated in the reflow assembly 221. The moisture absorption assembly 24 is provided with electrically controlled switches at both ends, so that the moisture absorption assembly 24 can be connected and closed. Through electrical control, interval evaporation can be carried out. Hot air is introduced into the pipeline of the moisture absorption assembly 24, so that the moisture absorption sponge is heated to evaporate. The outer cabinet 102 is provided with an evaporation port 25 at the top corresponding to the position of the moisture absorption assembly 24, so as to discharge water vapor from the evaporation port 25.

[0042] The moisture absorption assembly 24 and the reflow assembly 221 are provided with a dust screen 23. The dust screen 23 is attracted and combined between the back of the inner cabinet 101 and the back plate 2 by setting magnets at both ends. The dust screen 23 can be removed and cleaned at any time. The inclination angle of the dust screen 23 is 10°-15°. Through the angle, dust can naturally slide down, reducing the problem of poor ventilation caused by dust adhesion during long-term use.

[0043] Example Two

[0044] Reference Figures 8-9 In this embodiment, the overall structure is the same as that in Example One, only the structure of the reflow assembly 221 is different. The reflow assembly 221 is an array of cylinders on the mounting plate, and the two sides of the cylinder are provided with arc-shaped fins. The fins and the cylinder leave a gap between them. The mounting plate is provided with mounting apertures in advance. The number and position of the cylinders can be freely adjusted. Through the guiding effect of the fins and the blocking of the cylinder, when the airflow passes through the gap between the fins and the cylinder, it can effectively exchange heat with the reflow assembly. Under the flow for a long time, the temperature is effectively reduced to condense. At the same time, the fins are in the form of an arc, so that the condensed water condensed on the fins can be quickly collected and flow to the drain pipe. At the same time, the reflow assembly 221 can be freely arranged and combined on the mounting plate, so that the user can freely adjust the number and arrangement mode according to the different use environment, adjust the flow path and air inlet amount of the cold air outside the cabinet 1, and adapt to more environments.

[0045] Working principle: the inner layer cabinet 101 is provided with an inner layer cabinet air outlet 11 at the bottom of both sides, an inner layer cabinet air inlet 12 at the top, and an outer layer cabinet air outlet 21 at the top of both sides of the outer layer cabinet 102, and an outer layer cabinet air inlet 22 at the bottom of the back plate 2. The back of the inner layer cabinet 101 is provided with a backflow component 221 between the outer layer cabinet air inlet 22 and the inner layer cabinet air inlet 12. The backflow component can condense and collect water vapor in the gas. The cabinet 1 is provided with a gas pump to drive the movement of the air flow. The cold air outside the cabinet 1 enters the air inlet channel through the outer layer cabinet air inlet 22 at the bottom of the back plate 2. The cold air gradually rises upward along the gap between the back plate 2 and the inner layer cabinet 101. The water vapor in the air is condensed by the backflow component 221. The backflow component 221 condenses the water vapor in the air by extending the flow path of the gas and blocking the flow. The humidity of the cold air flowing into the cabinet 1 is reduced. When the gas enters the inner layer cabinet 101 through the inner layer cabinet air inlet 12, the humidity is lower, which effectively prevents the equipment in the inner layer cabinet 101 from being damp and corroded, prolongs the service life, and reduces the maintenance cost. The cold air flows from top to bottom in the inner layer cabinet 101, which extrudes the hot air in the inner layer cabinet 101 downward. The inner layer cabinet 101 is provided with an inner layer cabinet air outlet 11 at the bottom of both sides. The cold air extrusion and the air outlet affect the hot air in the inner layer cabinet 101, which flows into the heat dissipation channel from the bottom of both sides. The hot air rises upward in the heat dissipation channel and flows out of the cabinet 1 from the outer layer cabinet air outlet 21. In the whole process, the gap between the inner layer cabinet 101 and the outer layer cabinet 102 and the separation effect of the partition plate 103 separate the heat dissipation channel and the air inlet channel, so that the cold and hot air do not affect each other. At the same time, the cabinet 1 is divided into an inner layer cabinet 101 and an outer layer cabinet 102, and a gap is left between them for air flow. When the cabinet 1 is used outdoors, the heat transfer path of the external heat is also prolonged under the high temperature and the sun's exposure, which avoids the direct influence of the environment high temperature on the electrical equipment in the inner layer cabinet 101.

[0046] It should be noted that in this text, relational terms such as first and second are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment. Without more limitations, the element defined by the statement "including a" does not exclude the presence of other identical elements in the process, method, article or equipment including the element.

[0047] While embodiments of the application have been shown and described, it is to be understood that the embodiments described are merely exemplary of the principles and application of the present application. Numerous modifications and adaptions can be effected without departing from the spirit and scope of the present application, which is not limited to the exact construction and arrangement described. It is intended, therefore, to cover all modifications and adaptions that fall within the scope of the claims and their equivalents.

Claims

1. An outdoor waterproof power distribution cabinet, comprising a cabinet body (1) and a back panel (2), wherein the cabinet body (1) is composed of an inner cabinet body (101) and an outer cabinet body (102), wherein the inner cabinet body (101) has a space for installing power supplies and is closed and opened through a cabinet door provided on the front, characterized in that: The outer cabinet (102) is located outside the inner cabinet (101). There is space between the top, back and sides of the inner cabinet (101) and the outer cabinet (102) for airflow. A partition (103) is provided between the outer cabinet (102) and the sides of the inner cabinet (101). The partition (103) divides the space between the inner cabinet (101) and the outer cabinet (102) into a heat dissipation channel formed by the side space and an air intake channel formed by the top and back space. The back of the inner cabinet (101) and the outer cabinet (102) is provided with a back panel (2) for sealing. The inner cabinet (101) has a reflux assembly (221) on its back between the air inlet (22) of the outer cabinet and the air inlet (12) of the inner cabinet. The reflux assembly (221) can condense and collect water vapor in the gas. The cabinet (1) is equipped with an air pump to drive the airflow.

2. The outdoor waterproof distribution cabinet according to claim 1, characterized in that: The inner cabinet (101) has an air outlet (11) on both sides at the bottom, an air inlet (12) on the top of the inner cabinet (101), an air outlet (21) on both sides at the top of the outer cabinet (102), and an air inlet (22) on the bottom of the back panel (2).

3. An outdoor waterproof distribution cabinet according to claim 2, characterized in that: The return flow assembly (221) is a meandering pipe arranged horizontally. The airflow outside the cabinet (1) flows into the return flow assembly (221) from the air inlet (22) of the outer cabinet, and then flows into the inner cabinet (101) from the air inlet (12) of the inner cabinet.

4. An outdoor waterproof distribution cabinet according to claim 3, characterized in that: The pipe at the upper end of the reflux assembly (221) has rounded corners.

5. An outdoor waterproof distribution cabinet according to claim 2, characterized in that: The recirculation assembly (221) is arranged in a cylindrical array on the mounting plate, and arc-shaped fins are provided on both sides of the cylinder. A gap is left between the fins and the cylinder. The mounting plate has pre-reserved mounting holes, and the number and position of the cylinders can be freely adjusted.

6. An outdoor waterproof distribution cabinet according to claim 2, characterized in that: A moisture-absorbing component (24) is provided above the reflux component (221). The moisture-absorbing component (24) is a pipe that connects the heat dissipation channels on both sides. The moisture-absorbing component (24) is wrapped with a moisture-absorbing sponge on the outside. An evaporation port (25) is provided on the top of the outer cabinet (102) at the corresponding position of the moisture-absorbing component (24).

7. An outdoor waterproof distribution cabinet according to claim 6, characterized in that: The moisture-absorbing component (24) is equipped with electrically controlled switches at both ends, enabling the moisture-absorbing component (24) to be connected and closed.

8. An outdoor waterproof distribution cabinet according to claim 2, characterized in that: The outer cabinet air outlet (21) and outer cabinet air inlet (22) form a ventilation structure by horizontal beams arranged side by side. The beams include a connecting plate in the middle. The inner side of the connecting plate is designed with an upward inner plate, and the outer side of the connecting plate is designed with a downward outer plate, so that the cross section of the beam is a horizontally laid-down Z-shaped shape.

9. An outdoor waterproof distribution cabinet according to claim 6, characterized in that: A dust baffle (23) is provided between the moisture absorption component (24) and the return flow component (221). The dust baffle (23) is attached to the back of the inner cabinet (101) and the back panel (2) by magnets at both ends.

10. An outdoor waterproof distribution cabinet according to claim 9, characterized in that: The dust baffle (23) has an inclination angle of 10° to 15°.

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