A wall-mounted power metering box with heat dissipation and moisture-proof structure

Abstract

This invention relates to the field of electricity metering box technology, and more particularly to a wall-mounted electricity metering box with a heat dissipation and moisture-proof structure. It includes two symmetrically distributed mounting brackets, with a main box body installed between the two brackets. The front of the main box body has a door for controlling its opening and closing. Each of the left and right side walls of the main box body has a heat dissipation air inlet and an exhaust air outlet, with each air inlet located directly below its corresponding exhaust air outlet. Side partitions are fixed to the inner sides of both left and right walls of the main box body, forming cavities between each partition and its corresponding side wall. This metering box automatically switches between three modes using a temperature and humidity sensor: in dry conditions, it opens a rapid heat dissipation channel for efficient convection cooling; in high humidity conditions, it switches to a dehumidification and heat dissipation duct, using a porous silica gel adsorption layer to remove moisture before heat dissipation, effectively preventing condensation and ensuring stable equipment operation.

Description

Technical Field

[0001] This invention relates to the field of electricity metering box technology, and in particular to a wall-mounted electricity metering box with a heat dissipation and moisture-proof structure. Background Technology

[0002] With the deepening of smart grid construction, electricity metering boxes, as key metering and protection devices on the electricity user side, are directly related to electricity safety and metering accuracy in terms of operational reliability. Currently, wall-mounted electricity metering boxes are widely used in residential building corridors, outdoor walls, and semi-enclosed distribution rooms, exposed to complex environments for extended periods. Especially in areas with high temperature and humidity in the south, salt spray along the coast, or large temperature differences in northern winters, the inside of the box is susceptible to moisture intrusion and condensation, leading to oxidation of the wiring terminals, decreased insulation performance, and even safety hazards such as short circuits and arcing.

[0003] To address these issues, existing electricity metering boxes often employ sealed structures to enhance moisture resistance, such as using rubber sealing strips, waterproof joints, and high protection ratings (e.g., IP54 or IP65) to block external moisture. However, while complete sealing effectively prevents moisture, it significantly weakens the box's natural heat dissipation capacity. Components installed inside the box, such as the electricity meter, current transformer, and circuit breaker, continuously generate heat during long-term operation. If this heat cannot dissipate in time, it will cause internal temperature buildup, accelerating the aging of electronic components and potentially affecting the meter's accuracy, even triggering overheating faults in severe cases. To balance heat dissipation and moisture protection, some existing technologies attempt to add ventilation holes or louvers to enhance heat dissipation. However, while improving ventilation, these structures are ineffective at preventing the intrusion of rainwater, dust, and high-humidity air. Especially during the rainy season or typhoons, moisture can easily enter the box through the ventilation openings, exacerbating the risk of condensation. Another solution involves introducing silica gel desiccant or a built-in heating dehumidification module, which can alleviate the humidity problem to some extent. However, the desiccant needs to be replaced regularly, resulting in high maintenance costs. Heaters, on the other hand, have drawbacks such as high energy consumption and localized overheating affecting measurement accuracy, and they cannot be optimized in conjunction with heat dissipation requirements.

[0004] Therefore, how to design a wall-mounted power metering box that combines efficient heat dissipation with reliable moisture protection has become a technical problem that urgently needs to be solved in this field. Summary of the Invention

[0005] In order to overcome the shortcomings of existing wall-mounted energy metering boxes that are difficult to balance efficient heat dissipation and reliable moisture protection, this invention provides a wall-mounted energy metering box with a heat dissipation and moisture protection structure.

[0006] A wall-mounted electricity metering box with a heat dissipation and moisture-proof structure includes two symmetrically distributed mounting brackets, with a main box installed between the two brackets. The front of the main box has a door for controlling its opening and closing. Heat dissipation air inlets and exhaust outlets are opened on both the left and right side walls of the main box, with each air inlet located directly below its corresponding exhaust outlet. Side partitions are fixed to the inner sides of both sides of the main box, forming cavities between each partition and its corresponding side wall. Air intake fans are installed on the upper part of each side partition, near the heat dissipation air inlets, forming rapid heat dissipation channels between each air inlet and its corresponding air intake fan. Accessory boxes are fixed to both side partitions, with the interior of the accessory boxes connected to the adjacent cavities, collectively forming dehumidification and heat dissipation ducts. Each dehumidification and heat dissipation duct contains a moisture-absorbing component. Each side partition has a rotatable duct switching plate near the inlet of the dehumidification and heat dissipation duct, used to switch between the dehumidification and heat dissipation duct and the rapid heat dissipation channel.

[0007] In one embodiment, each side partition has a vertically sliding lifting plate connected to the upper part of the partition, on the side near the air intake fan. The lifting plate is used to control the opening and closing of the fast heat dissipation channel outlet. The inner side of the top wall of the main housing is equipped with symmetrically distributed drive cylinders, and the extension and retraction parts of each drive cylinder are fixedly connected to the adjacent lifting plate.

[0008] In one embodiment, a second air outlet is provided on both the left and right sides of the bottom wall of the main housing, and an opening and closing component for controlling the opening and closing of the second air outlet is provided on the bottom wall.

[0009] In one embodiment, a temperature and humidity sensor is installed on the lower part of the right-side partition; a dehumidifying circulating fan is installed on the bottom wall of each side partition, and each accessory box covers the corresponding dehumidifying circulating fan; the moisture absorption assembly has a heating plate for heating and regeneration; the temperature and humidity sensor is electrically connected to the drive cylinder, the air intake fan, the heating plate, and the dehumidifying circulating fan through a control module to automatically control the action of each actuator according to the detected temperature and humidity signals.

[0010] In one embodiment, the moisture-absorbing assembly includes a vertically arranged first and second liquid guide rack, three vertically arranged desiccant racks, a porous silica gel adsorption layer supported within the desiccant racks, and a heating plate installed on the first liquid guide rack and the side partitions; each first liquid guide rack is fixedly connected to the inner side of the left and right walls of the main housing and communicates with the outside of the main housing; each second liquid guide rack is fixedly connected to the inside of each side partition, and a drain pipe is fixedly connected between each side partition and the bottom wall of the main housing, and each second liquid guide rack communicates with the outside of the main housing through the drain pipe; the upper and lower desiccant racks are fixedly connected to the corresponding first liquid guide racks, and each has a gap between it and the adjacent side partition; the middle one The desiccant rack is fixed to the corresponding side partition and has a gap between it and the adjacent first liquid guide rack, thus forming an S-shaped bend in the inlet section of the dehumidification and heat dissipation duct. Each desiccant rack is a trough-shaped component with an open inner cavity and a supporting step inside to support the porous silica gel adsorption layer, which is a regenerable material. The bottom of the inner cavity of the upper and lower desiccant racks is connected to the corresponding first liquid guide rack, and the bottom of the inner cavity of the middle rack is connected to the corresponding second liquid guide rack, forming a liquid receiving and guiding channel. Each first liquid guide rack and the side partition are equipped with a heating plate on the side facing the dehumidification and heat dissipation duct for heating and regenerating the saturated porous silica gel adsorption layer.

[0011] In one embodiment, the top wall of each side partition is slidably connected with symmetrical front and rear transmission telescopic rods, which are fixedly connected to the adjacent lifting sealing plate. The telescopic end of each transmission telescopic rod is rotatably connected to a first transmission link, and the other end of each first transmission link is rotatably connected to the adjacent air duct switching plate. When the lifting sealing plate moves up and down, it drives the air duct switching plate to flip through the transmission telescopic rod and the first transmission link.

[0012] In one embodiment, each accessory box is rotatably connected to a dehumidification box door; each lifting sealing plate is rotatably connected to a second transmission link on its front side, and the other end of each second transmission link is rotatably connected to the adjacent dehumidification box door; when the lifting sealing plate moves up and down, it drives the dehumidification box door to open and close through the second transmission link.

[0013] In one embodiment, the opening and closing assembly includes symmetrically rotatably connected dehumidification baffles to the bottom wall of the main housing. Each dehumidification baffle is used to control the opening and closing of the corresponding second air outlet. Each dehumidification baffle is connected to the bottom wall of the main housing by a reset torsion spring, and each reset torsion spring is wound around the corresponding dehumidification baffle.

[0014] In one embodiment, each side partition has a first air outlet near the air duct switching plate.

[0015] In one embodiment, the control module controls the operation of the drive cylinder, intake fan, heating plate and dehumidification circulation fan according to the humidity signal detected by the temperature and humidity sensor, so as to realize the automatic switching between rapid heat dissipation mode, dehumidification heat dissipation mode and desiccant regeneration mode.

[0016] The beneficial effects of this invention are: This metering box monitors the internal environment in real time through temperature and humidity sensors, and automatically switches between rapid heat dissipation mode, dehumidification heat dissipation mode and desiccant regeneration mode; in a dry environment, it opens the rapid heat dissipation channel to achieve efficient convection heat dissipation; in a high humidity environment, it switches to a dehumidification and heat dissipation air duct, and uses a porous silica gel adsorption layer to remove moisture from the air before heat dissipation, effectively avoiding condensation damage to electrical components and ensuring long-term stable operation of the equipment.

[0017] The moisture absorption component of this metering box uses a regenerable porous silica gel adsorption layer and is equipped with a heating plate and drainage structure. When the adsorption layer is saturated, the system automatically starts the regeneration program. The moisture is evaporated by heating, and the condensate is discharged directly outside the box through the liquid guide rack and drain pipe, realizing the in-situ regeneration of the adsorption material. There is no need to manually replace the desiccant, which greatly reduces the operation and maintenance costs. It is especially suitable for wall-mounted electricity metering boxes in remote areas.

[0018] This metering box achieves precise switching between a rapid heat dissipation channel and a dehumidification and heat dissipation air duct through the linkage of a lifting sealing plate, an air duct switching plate, and a transmission mechanism. In regeneration mode, the dehumidification circulating fan drives the air to form a U-shaped internal circulation, and the hot and humid air is quickly discharged through the second air outlet to avoid moisture backflow. The S-shaped bend channel extends the contact path between the air and the adsorption layer, significantly improving dehumidification and regeneration efficiency and ensuring that the electrical components inside the box are always in a suitable working environment. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0020] Figure 2 This is a three-dimensional structural diagram of the main body, side partitions, and dehumidification cabinet door of the present invention.

[0021] Figure 3 This is a three-dimensional structural diagram of the components of the present invention, including the air intake fan, the air duct switching plate, and the dehumidification circulating fan.

[0022] Figure 4 This is a three-dimensional structural diagram of the first liquid guide rack, the desiccant placement rack, and the porous silica gel adsorption layer of the present invention.

[0023] Figure 5 This is a three-dimensional structural diagram of the desiccant placement rack of the present invention.

[0024] Figure 6 This is a three-dimensional structural diagram of the components of the present invention, including the drive cylinder, lifting sealing plate, and transmission telescopic rod.

[0025] Figure 7 This is a three-dimensional structural diagram of the components of the present invention, including the dehumidification baffle, the reset torsion spring, and the second transmission link.

[0026] The markings in the attached diagram are: 101_Mounting bracket, 102_Main enclosure, 1021_Heat dissipation air inlet, 1022_Side partition, 1023_Accessory box, 1024_Exhaust air outlet, 103_Enclosure door, 104_Intake fan, 105_Air duct switching plate, 1051_First air outlet, 1052_Second air outlet, 106_Desiccant rack, 107_Porous silica gel adsorption layer, 108_First liquid guide rack, 10 9_Heating plate, 110_Second liquid guide rack, 111_Drain pipe, 112_Dehumidification circulating fan, 113_Temperature and humidity sensor, 114_Dehumidification and heat dissipation air duct, 115_Rapid heat dissipation channel, 201_Drive cylinder, 202_Lifting sealing plate, 203_Transmission telescopic rod, 204_First transmission connecting rod, 301_Dehumidification chamber door, 302_Second transmission connecting rod, 303_Exhaust baffle, 304_Reset torsion spring. Detailed Implementation

[0027] The following are merely preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention.

[0028] Example 1: A wall-mounted power metering box with a heat dissipation and moisture-proof structure, such as Figures 1-3 As shown, it includes two mounting brackets 101 symmetrically distributed on the left and right, and a main housing 102 is installed between the two mounting brackets 101. The front side of the main housing 102 is provided with a housing door 103 for controlling its opening and closing.

[0029] The main housing 102 has heat dissipation air inlets 1021 and exhaust outlets 1024 on both its left and right side walls, with each heat dissipation air inlet 1021 located directly below its corresponding exhaust outlet 1024. Side partitions 1022 are fixed to the inner sides of both left and right walls of the main housing 102, with the top surface of the side partitions 1022 flush with the upper edge of the heat dissipation air inlets 1021. A cavity (left side cavity, right side cavity) is formed between each side partition 1022 and its corresponding side wall of the main housing 102.

[0030] An intake fan 104 is installed on the upper part of each side partition 1022, near the heat dissipation air inlet 1021. Each intake fan 104 is horizontally aligned with the adjacent heat dissipation air inlet 1021. A rapid heat dissipation channel 115 is formed between each heat dissipation air inlet 1021 and the corresponding intake fan 104.

[0031] Each of the two side partitions 1022 has an accessory box 1023 fixedly attached. The interior of the accessory box 1023 is connected to the cavity formed between the adjacent side partition 1022 and the corresponding side wall of the main body 102, together forming a dehumidification and heat dissipation air duct 114. Each accessory box 1023 is rotatably connected to a dehumidification box door 301. A dehumidification circulating fan 112 is installed on the bottom wall of each side partition 1022, and each accessory box 1023 covers the corresponding dehumidification circulating fan 112.

[0032] like Figures 3-5 As shown, each dehumidification and heat dissipation duct 114 is equipped with a moisture absorption component, including: a vertically arranged first liquid guide 108, which is fixed to the inner side of the left and right walls of the main housing 102 and communicates with the outside of the main housing 102; a vertically arranged second liquid guide 110, which is fixed to each side partition 1022. Each side partition 1022 is fixed to the bottom wall of the main housing 102 with a drain pipe 111, and each second liquid guide 110 is connected to the outside of the main housing 102 through the drain pipe 111.

[0033] The three desiccant racks 106 arranged vertically are as follows: the top and bottom racks are fixed to the corresponding first liquid guide racks 108, and each rack has a gap between itself and the adjacent side partition 1022; the middle rack is fixed to the corresponding side partition 1022, and has a gap between itself and the adjacent first liquid guide rack 108, thus forming an S-shaped bend in the inlet section of the dehumidification and heat dissipation duct 114.

[0034] Each desiccant rack 106 is a trough-shaped component with an open inner cavity, and each has a supporting step inside to support the porous silica adsorption layer 107, which is a regenerable material. The bottom of the inner cavity of the upper and lower desiccant racks 106 are connected to the corresponding first liquid guide rack 108, and the bottom of the inner cavity of the middle rack is connected to the corresponding second liquid guide rack 110, forming a liquid receiving and guiding channel. Each first liquid guide rack 108 and the side partition 1022 is equipped with a heating plate 109 on the side facing the dehumidification and heat dissipation air duct 114, which is used to heat and regenerate the saturated porous silica adsorption layer 107.

[0035] Each side partition 1022 is rotatably connected to an air duct switching plate 105 near the inlet of the dehumidification and heat dissipation air duct 114, which is used to switch between the dehumidification and heat dissipation air duct 114 and the rapid heat dissipation channel 115. Each side partition 1022 has a first air outlet 1051 near the air duct switching plate 105.

[0036] The bottom wall of the main housing 102 has a second air outlet 1052 on both the left and right sides, and the bottom wall is provided with an opening and closing assembly, including a dehumidification baffle 303 that is symmetrically rotated and connected to the bottom wall of the main housing 102. Each dehumidification baffle 303 is connected to the bottom wall of the main housing 102 by a reset torsion spring 304, and each reset torsion spring 304 is wound around the corresponding dehumidification baffle 303.

[0037] like Figure 6 and Figure 7 As shown, each side partition 1022 has a vertically sliding lifting plate 202 on its upper part, near the intake fan 104. The lifting plate 202 is located inside the intake fan 104 and is used to control the opening and closing of the outlet of the rapid heat dissipation channel 115. Symmetrically distributed drive cylinders 201 are installed on the inner side of the top wall of the main housing 102, and the extension and retraction parts of each drive cylinder 201 are fixedly connected to the adjacent lifting plate 202.

[0038] Each side partition 1022 has a slidably connected top wall with symmetrically arranged telescopic transmission rods 203, which are fixedly connected to the adjacent lifting sealing plate 202. The telescopic end of each telescopic transmission rod 203 is rotatably connected to a first transmission link 204, and the other end of each first transmission link 204 is rotatably connected to the adjacent air duct switching plate 105. Each lifting sealing plate 202 has a rotatably connected front side with a second transmission link 302, and the other end of each second transmission link 302 is rotatably connected to the adjacent dehumidification box door 301.

[0039] like Figure 2 As shown, a temperature and humidity sensor 113 is installed on the lower part of the side partition 1022 on the right side. This sensor is electrically connected to the drive cylinder 201, the air intake fan 104, the heating plate 109, and the dehumidification circulation fan 112 through a control module, so as to automatically control the action of each actuator according to the detected temperature and humidity signal.

[0040] Working principle: This metering box automatically switches between three working modes based on the humidity detected by the temperature and humidity sensor 113: rapid heat dissipation mode, dehumidification heat dissipation mode, and desiccant regeneration mode.

[0041] In the first rapid heat dissipation mode, when the humidity is lower than the threshold set by the temperature and humidity sensor 113, the drive cylinder 201 moves the lifting sealing plate 202 upward, opening the outlet of the rapid heat dissipation channel 115; the transmission telescopic rod 203 and the first transmission connecting rod 204 cause the air duct switching plate 105 to rotate upward by 90°, closing the inlet of the dehumidification and heat dissipation air duct 114; the second transmission connecting rod 302 causes the dehumidification box door 301 to rotate downward, closing the opening of the accessory box 1023 (i.e., the outlet of the dehumidification and heat dissipation air duct 114). The intake fan 104 starts.

[0042] Outside cold air enters the rapid heat dissipation channel 115 through the heat dissipation inlet 1021, and enters the main casing 102 under the action of the intake fan 104. After absorbing heat, it is discharged from the exhaust outlet 1024 on the other side, forming convection heat dissipation. At this time, both the inlet and outlet of the dehumidification and heat dissipation air duct 114 are closed to ensure concentrated heat dissipation airflow.

[0043] In the second dehumidification and heat dissipation mode, when the humidity exceeds the threshold set by the temperature and humidity sensor 113, the drive cylinder 201 moves the lifting sealing plate 202 downward, closing the outlet of the rapid heat dissipation channel 115. The transmission mechanism causes the air duct switching plate 105 to rotate downwards by 90°, opening the inlet of the dehumidification and heat dissipation air duct 114. Simultaneously, the dehumidification box door 301 rotates upwards, opening the accessory box 1023 (i.e., the outlet of the dehumidification and heat dissipation air duct 114). The dehumidification circulation fan 112 starts, and the intake fan 104 stops.

[0044] High-humidity outside air enters the dehumidification and heat dissipation duct 114 through the heat dissipation inlet 1021, and passes through the three-hole silicone adsorption layer 107 in sequence along the S-shaped bend, where the moisture is adsorbed. The dried air is sent into the accessory box 1023 by the dehumidification circulation fan 112, then into the main body 102, and finally discharged from the exhaust outlet 1024, achieving dehumidification and heat dissipation at the same time.

[0045] The third desiccant regeneration mode: after the porous silica gel adsorption layer 107 is saturated with moisture, when the humidity inside the chamber drops below the threshold due to dehumidification, the system automatically switches to rapid heat dissipation mode and starts the regeneration program at the same time.

[0046] The regeneration process performs the following actions: maintaining all actions of the rapid heat dissipation mode (the air duct switching plate 105 flips upward to close the inlet of the dehumidification and heat dissipation air duct 114, opens the first air outlet 1051, closes the dehumidification box door 301, and opens the rapid heat dissipation channel 115 with the lifting sealing plate 202). The heating plate 109 is activated to heat the porous silica gel adsorption layer 107, the dehumidification circulation fan 112 continues to operate, and the high-humidity airflow enters the accessory box 1023 from the dehumidification and heat dissipation air duct 114, then returns to the dehumidification and heat dissipation air duct 114 through the first air outlet 1051. The dehumidification baffle 303 flips downward under the action of the airflow, opening the second air outlet 1052.

[0047] The dehumidifying circulating fan 112 drives the air in the dehumidifying and heat dissipation duct 114 to form a U-shaped internal circulation: the air passes through the accessory box 1023 → the first air outlet 1051 → the dehumidifying and heat dissipation duct 114 → and re-enters the accessory box 1023. Heating causes the moisture in the porous silica gel adsorption layer 107 to evaporate, and the hot and humid air is continuously pushed towards the accessory box 1023, breaking through the dehumidification baffle 303 and being discharged outside the box through the second air outlet 1052.

[0048] The water vapor generated by evaporation condenses into water droplets on the inner wall of the desiccant rack 106 and collects at the bottom of the inner cavity. The condensate in the upper and lower desiccant racks 106 is discharged directly out of the box through the first liquid guide rack 108. The condensate in the middle rack is discharged through the second liquid guide rack 110 and the drain pipe 111.

[0049] After the regeneration process has run for the preset time, the heating plate 109 stops, the dehumidification circulation fan 112 stops, and the dehumidification baffle 303 flips upward and resets under the action of the reset torsion spring 304, closing the second air outlet 1052. The system then resumes the rapid heat dissipation mode, waiting for the next increase in humidity to trigger the dehumidification heat dissipation mode.

[0050] Through automatic switching between the three modes mentioned above, this metering box can balance heat dissipation and moisture protection under different environmental conditions, and realize in-situ regeneration of adsorption materials without manual replacement, ensuring long-term stable operation.

[0051] Those skilled in the art should understand that the above embodiments do not limit the present invention in any way, and all technical solutions obtained by equivalent substitution or equivalent transformation fall within the protection scope of the present invention.

Claims

1. A wall-mounted electricity metering box with a heat dissipation and moisture-proof structure, comprising two mounting brackets (101) symmetrically distributed on the left and right sides, a main box (102) installed between the two mounting brackets (101), and a box door (103) for controlling its opening and closing on the front side of the main box (102); heat dissipation air inlets (1021) and exhaust air outlets (1024) are opened on the left and right side walls of the main box (102), and each heat dissipation air inlet (1021) is located directly below the corresponding exhaust air outlet (1024); characterized in that, Side partitions (1022) are fixed to the inner sides of the left and right walls of the main enclosure (102), and cavities are formed between each side partition (1022) and the corresponding side wall of the main enclosure (102); an intake fan (104) is installed on the upper part of each side partition (1022) near the heat dissipation air inlet (1021), and a rapid heat dissipation channel (115) is formed between each heat dissipation air inlet (1021) and the corresponding intake fan (104); the two side partitions (1022) Each of the components is fixedly connected to an accessory box (1023), and the interior of the accessory box (1023) is connected to the adjacent cavity to form a dehumidification and heat dissipation duct (114). Each dehumidification and heat dissipation duct (114) is equipped with a moisture absorption component. Each side partition (1022) is rotatably connected to a duct switching plate (105) near the entrance of the dehumidification and heat dissipation duct (114) for switching between the dehumidification and heat dissipation duct (114) and the rapid heat dissipation channel (115).

2. A wall-mounted energy metering box with a heat dissipation and moisture-proof structure as described in claim 1, characterized in that, Each side partition (1022) has a vertically sliding lifting plate (202) on the upper part and on the side near the air intake fan (104). The lifting plate (202) is used to control the opening and closing of the outlet of the fast heat dissipation channel (115). The inner side of the top wall of the main box (102) is equipped with symmetrically distributed drive cylinders (201). The extension and retraction parts of each drive cylinder (201) are fixedly connected to the adjacent lifting plate (202).

3. A wall-mounted energy metering box with a heat dissipation and moisture-proof structure according to claim 2, characterized in that, The bottom wall of the main housing (102) has a second air outlet (1052) on both the left and right sides, and the bottom wall is provided with an opening and closing component for controlling the opening and closing of the second air outlet (1052).

4. A wall-mounted energy metering box with a heat dissipation and moisture-proof structure according to claim 3, characterized in that, A temperature and humidity sensor (113) is installed on the lower part of the side partition (1022) on the right side; a dehumidifying circulating fan (112) is installed on the bottom wall of each side partition (1022), and each accessory box (1023) covers the corresponding dehumidifying circulating fan (112); the moisture absorption assembly has a heating plate (109) for heating and regeneration; the temperature and humidity sensor (113) is electrically connected to the drive cylinder (201), the air intake fan (104), the heating plate (109) and the dehumidifying circulating fan (112) through the control module, so as to automatically control the action of each actuator according to the detected temperature and humidity signal.

5. A wall-mounted energy metering box with a heat dissipation and moisture-proof structure according to claim 4, characterized in that, The moisture absorption assembly includes a first liquid guide (108) and a second liquid guide (110) arranged vertically, three desiccant placement racks (106) arranged vertically, a porous silica gel adsorption layer (107) supported in the desiccant placement racks (106), and a heating plate (109) installed on the first liquid guide (108) and the side partition (1022). Each of the first liquid guide racks (108) is fixed to the inner side of the left and right walls of the main box (102) and communicates with the outside of the main box (102); Each second liquid guide (110) is fixedly connected to each side partition (1022), and each side partition (1022) is fixedly connected to the bottom wall of the main box (102). Each second liquid guide (110) is connected to the outside of the main box (102) through the drain pipe (111). The upper and lower desiccant racks (106) are both fixed to the corresponding first liquid guide racks (108), and there is a gap between each rack and the adjacent side partition (1022); the middle desiccant rack (106) is fixed to the corresponding side partition (1022), and there is a gap between the middle rack and the adjacent first liquid guide rack (108), thus forming an S-shaped bend in the inlet section of the dehumidification and heat dissipation duct (114); Each desiccant rack (106) is a groove-shaped component with an open inner cavity, and each has a supporting step inside to support the silica gel adsorption layer (107) with holes. This adsorption layer is a renewable material. The bottom of the inner cavity of the upper and lower desiccant placement racks (106) are connected to the corresponding first liquid guide rack (108), and the bottom of the inner cavity of the middle one is connected to the corresponding second liquid guide rack (110), forming a liquid receiving-liquid guiding channel. Each of the first liquid guide racks (108) and the side partition (1022) is equipped with a heating plate (109) on the side facing the dehumidification and heat dissipation air duct (114) for heating and regenerating the saturated porous silica adsorption layer (107).

6. A wall-mounted energy metering box with a heat dissipation and moisture-proof structure according to claim 5, characterized in that, Each side partition (1022) has a slidingly connected front and rear symmetrical transmission telescopic rod (203) on its top wall, which is fixedly connected to the adjacent lifting sealing plate (202). The telescopic end of each transmission telescopic rod (203) is rotatably connected to a first transmission link (204), and the other end of each first transmission link (204) is rotatably connected to the adjacent air duct switching plate (105). When the lifting sealing plate (202) moves up and down, the air duct switching plate (105) is rotated through the transmission telescopic rod (203) and the first transmission link (204).

7. A wall-mounted energy metering box with a heat dissipation and moisture-proof structure according to claim 6, characterized in that, Each accessory box (1023) is rotatably connected to a dehumidifying chamber door (301); each lifting sealing plate (202) is rotatably connected to a second transmission link (302) on its front side, and the other end of each second transmission link (302) is rotatably connected to the adjacent dehumidifying chamber door (301); when the lifting sealing plate (202) moves up and down, it drives the dehumidifying chamber door (301) to open and close through the second transmission link (302).

8. A wall-mounted energy metering box with a heat dissipation and moisture-proof structure according to claim 7, characterized in that, The opening and closing assembly includes a dehumidification baffle (303) that is symmetrically rotated and connected to the bottom wall of the main housing (102). Each dehumidification baffle (303) is used to control the opening and closing of the corresponding second air outlet (1052). Each dehumidification baffle (303) is connected to the bottom wall of the main housing (102) by a reset torsion spring (304), and each reset torsion spring (304) is wound around the corresponding dehumidification baffle (303).

9. A wall-mounted energy metering box with a heat dissipation and moisture-proof structure according to claim 8, characterized in that, Each side partition (1022) has a first air outlet (1051) near the air duct switching plate (105).

10. A wall-mounted energy metering box with a heat dissipation and moisture-proof structure according to claim 9, characterized in that, The control module controls the operation of the drive cylinder (201), the air intake fan (104), the heating plate (109) and the dehumidification circulation fan (112) based on the humidity signal detected by the temperature and humidity sensor (113), so as to realize the automatic switching between the rapid heat dissipation mode, the dehumidification heat dissipation mode and the desiccant regeneration mode.

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