Outdoor rainproof electric power safety metering cabinet with good heat dissipation effect

Abstract

The utility model relates to the technical field of metering cabinets, and discloses an outdoor rainproof electric power safety metering cabinet with a good heat dissipation effect, which comprises a metering cabinet body, and the surface of the metering cabinet body is provided with a rainproof heat dissipation mechanism and an auxiliary heat dissipation mechanism. The rain-proof heat dissipation mechanism comprises a first fan, a mounting groove is formed in the top of the metering cabinet body, the first fan is fixed to the inner wall of the mounting groove, four supporting plates are fixed to the top of the metering cabinet body, a first dustproof net is fixed to the surfaces of the supporting plates, and a rain shielding table is fixed to the top of the first dustproof net; a rain sensor is fixed to the top of the rain shielding table, a temperature sensor and a controller are fixed to the inner wall of the metering cabinet body, the left side and the right side of the surface of the metering cabinet body communicate with air inlet shells, second draught fans and second dustproof nets are fixed to the surfaces of the air inlet shells, and hydraulic cylinders are fixed to the bottoms of the air inlet shells. Through the dynamic protection effect, the safety and heat dissipation efficiency of the metering cabinet body in severe weather are significantly improved.

Description

Technical Field

[0001] This utility model relates to the field of metering cabinet technology, specifically to an outdoor rainproof power safety metering cabinet with good heat dissipation. Background Technology

[0002] Metering cabinets are widely used in power systems for the distribution, control, metering, and safety protection of electrical equipment in power distribution terminal equipment. For distributed photovoltaic (PV) power generation projects and small wind farms, metering cabinets are typically installed outdoors near the power generation equipment to accurately measure power generation and the power exchange with the grid. For example, in some urban rooftop PV power generation systems, outdoor metering cabinets can monitor and record PV power generation and the amount of electricity supplied to the grid in real time.

[0003] Although there are many types of metering cabinets on the market today, most of them are just different in form and their functions have not changed much. Some metering cabinets on the market today need to be installed outdoors, but ordinary metering cabinets are not waterproof and therefore cannot adapt to rainy or snowy weather. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an outdoor rainproof power safety metering cabinet with good heat dissipation, so as to solve the problems mentioned in the background technology.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] An outdoor rainproof power safety metering cabinet with good heat dissipation effect includes a metering cabinet body, and the surface of the metering cabinet body is provided with a rainproof heat dissipation mechanism and an auxiliary heat dissipation mechanism.

[0007] The rainproof and heat dissipation mechanism includes a first fan. The top of the metering cabinet body has an installation groove, and the first fan is fixed to the inner wall of the installation groove. Four support plates are fixed to the top of the metering cabinet body, and a first dustproof net is fixed to the surface of each support plate. A rain shield is fixed to the top of the first dustproof net, and a rain sensor is fixed to the top of the rain shield. A temperature sensor and a controller are fixed to the inner wall of the metering cabinet body. Air inlets are connected to both the left and right sides of the metering cabinet body. A second fan and a second dustproof net are fixed to the surface of each air inlet shell. A hydraulic cylinder is fixed to the bottom of the air inlet shell, with one end of the hydraulic cylinder penetrating the air inlet shell and fixed to a connecting plate. A baffle plate is fixed to the surface of the connecting plate, and multiple ventilation grooves are opened on the surface of the baffle plate. Multiple first rain-guiding inclined plates are fixed to the surface of the baffle plate.

[0008] Preferably, a waterproof and breathable membrane is fixed to the surface of the air vent groove of the baffle plate, and a first heat-conducting sheet is fixed to the top of the rain shelter.

[0009] Preferably, two guide rods are fixed to the inner wall of the air inlet housing, and the connecting plate is slidably connected to the surface of the guide rods.

[0010] Preferably, the auxiliary heat dissipation mechanism includes an air supply shell and a serpentine tube. The air supply shell is connected to the back of the metering cabinet body. A plurality of second heat-conducting plates are fixed on the surface of the serpentine tube. The surface of the second heat-conducting plates is fixedly connected to the inner wall of the air supply shell. A third fan is fixed on the surface of the second heat-conducting plates. A liquid storage tank is fixed on the back of the metering cabinet body. The liquid storage tank is filled with coolant. A waterproof pump is connected to the top of the liquid storage tank. The delivery end of the waterproof pump passes through the air supply shell through a pipe and is connected to one end of the serpentine tube. One end of the serpentine tube passes through the air supply shell and is connected to the top of the liquid storage tank.

[0011] Preferably, a semiconductor cooler is fixed to the surface of the liquid storage tank, and a fourth fan is fixed to the surface of the semiconductor cooler.

[0012] Preferably, a rainproof shell is fixed to the surface of the liquid storage tank, and multiple ventilation slots are opened on the surface of the rainproof shell, and multiple second rain guide plates are fixed to the surface of the rainproof shell.

[0013] Preferably, a third dustproof net is fixed to the surface of the rainproof shell exhaust channel.

[0014] Compared with existing technologies, the beneficial effects of this utility model's outdoor rainproof power safety metering cabinet with good heat dissipation are:

[0015] First, the rainproof and heat dissipation mechanism significantly improves the safety and heat dissipation efficiency of the metering cabinet in harsh weather through dynamic protection. When rain is detected, the hydraulic cylinder pushes the connecting plate to move the baffle plate upward, so that the connecting plate can block the air inlet shell on one side, allowing air to maintain ventilation through the ventilator. At the same time, the first rain guide plate guides rainwater through the ventilator, making it difficult for rainwater to directly enter the ventilator. The temperature sensor monitors the internal temperature of the metering cabinet and transmits the signal to the controller. Through the above design, dynamic rainproof and heat dissipation are achieved in synergy. The adjustable design of the baffle plate makes the air intake controllable. The first rain guide plate and the rain shield form a double waterproof barrier, reducing the risk of electrical components getting wet from rain.

[0016] Secondly, the liquid storage tank improves the heat dissipation of the metering cabinet body through a composite heat dissipation mode of liquid cooling and semiconductor refrigeration. The waterproof pump and serpentine tube form a coolant circulation path, the second heat conduction fin increases the heat exchange area, the waterproof pump drives the coolant circulation, and the third fan generates airflow to enhance convective heat transfer, so that the cooling capacity of the serpentine tube can be transferred to the inside of the metering cabinet body by the third fan. The semiconductor refrigeration unit, together with the fourth fan, achieves the cooling effect of the coolant inside the liquid storage tank, thereby improving the heat dissipation effect inside the metering cabinet body, which is particularly suitable for continuous heat dissipation requirements in high-temperature environments. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a three-dimensional structural schematic diagram of the present invention from another perspective;

[0019] Figure 3 This is a partial cross-sectional structural diagram of the rainproof and heat dissipation mechanism in this utility model;

[0020] Figure 4 This is a partial cross-sectional structural diagram of the rainproof and heat dissipation mechanism in this utility model;

[0021] Figure 5 This is a cross-sectional structural diagram of the auxiliary heat dissipation mechanism in this utility model.

[0022] The components include: 1. Metering cabinet body; 2. Rainproof and heat dissipation mechanism; 201. First fan; 202. First dustproof net; 203. Rain shield; 204. Rain sensor; 205. Air inlet shell; 206. Second fan; 207. Second dustproof net; 208. Hydraulic cylinder; 209. Connecting plate; 210. Baffle plate; 211. First rain guide ramp; 212. Waterproof and breathable membrane; 213. Guide rod; 214. Temperature sensor; 215. Controller; 216. First heat conduction plate; 3. Auxiliary heat dissipation mechanism; 301. Air supply shell; 302. Serpentine tube; 303. Second heat conduction plate; 304. Third fan; 305. Liquid storage tank; 306. Waterproof pump; 307. Semiconductor cooler; 308. Fourth fan; 309. Rainproof shell; 310. Second rain guide ramp; 311. Third dustproof net. Detailed Implementation

[0023] The specific embodiments of this utility model will now be described in further detail with reference to the accompanying drawings.

[0024] Please see Figure 1-5 An outdoor rainproof power safety metering cabinet with good heat dissipation effect includes a metering cabinet body 1, and a rainproof heat dissipation mechanism 2 and an auxiliary heat dissipation mechanism 3 are provided on the surface of the metering cabinet body 1.

[0025] The rainproof and heat dissipation mechanism 2 includes a first fan 201. The top of the metering cabinet body 1 has an installation groove. The first fan 201 is fixed to the inner wall of the installation groove. Four support plates are fixed to the top of the metering cabinet body 1. A first dustproof net 202 is fixed to the surface of the support plates. A rain shield 203 is fixed to the top of the first dustproof net 202. A rain sensor 204 is fixed to the top of the rain shield 203. A temperature sensor 214 and a controller 215 are fixed to the inner wall of the metering cabinet body 1. Air inlet shells 205 are connected to both the left and right sides of the surface of the metering cabinet body 1. A second fan 206 and a second dustproof net 207 are fixed to the surface of the air inlet shell 205. A hydraulic cylinder 208 is fixed to the bottom of the air inlet shell 205. One end of the hydraulic cylinder 208 passes through the air inlet shell 205 and is fixed to a connecting plate 209. A baffle plate 210 is fixed to the surface of the connecting plate 209. Multiple ventilation grooves are opened on the surface of the baffle plate 210. Multiple first rain guide inclined plates 211 are fixed to the surface of the baffle plate 210.

[0026] Through the above technical solution, the first fan 201 forms forced exhaust at the top of the metering cabinet body 1, allowing hot air to be discharged outward through the first dustproof net 202. Combined with the inclined design of the rain shield 203, rainwater is diverted. Under normal circumstances, the hydraulic cylinder 208 is in a retracted state, and one side of the air inlet shell 205 is not blocked by the baffle plate 210, allowing the air inlet shell 205 to have a larger air intake and improving the heat dissipation effect of the metering cabinet body 1. The rain sensor 204 monitors the rainfall intensity in real time. When rain is detected, the hydraulic cylinder 208 pushes the connecting plate 209 to move the baffle plate 210. The upward movement of the connecting plate 209 allows it to shield one side of the air inlet housing 205, maintaining ventilation through the ventilation slot. At the same time, the first rain guide plate 211 guides rainwater through the ventilation slot, preventing rainwater from directly entering it. The temperature sensor 214 monitors the internal temperature of the metering cabinet body 1 and transmits the signal to the controller 215. Through the above design, dynamic rain protection and heat dissipation are achieved in tandem. The adjustable stroke design of the baffle plate 210 makes the air intake volume controllable. The first rain guide plate 211 and the rain shield 203 form a double waterproof barrier, reducing the risk of electrical components getting wet from rain.

[0027] A waterproof and breathable membrane 212 is fixed to the surface of the ventilation groove of the baffle plate 210, and a first heat-conducting sheet 216 is fixed to the top of the rain shelter 203.

[0028] Through the above technical solutions, the waterproof and breathable membrane 212 can block liquid water penetration while maintaining an air permeability of ≥85%, effectively improving the rainproof effect of the baffle plate 210. The first heat-conducting sheet 216 increases the contact area with air, improving the heat dissipation effect of the top of the metering cabinet body 1 and reducing the impact of heat accumulation on the internal equipment.

[0029] Two guide rods 213 are fixed to the inner wall of the air inlet housing 205, and the connecting plate 209 is slidably connected to the surface of the guide rods 213.

[0030] Through the above technical solution, the guiding effect of the guide rod 213 enables the blocking plate 210 to maintain vertical movement, avoid jamming, and significantly improve the reliability of the mechanism.

[0031] The auxiliary heat dissipation mechanism 3 includes an air supply shell 301 and a serpentine tube 302. The air supply shell 301 is connected to the back of the metering cabinet body 1. Multiple second heat-conducting plates 303 are fixed on the surface of the serpentine tube 302. The surface of the second heat-conducting plates 303 is fixedly connected to the inner wall of the air supply shell 301. A third fan 304 is fixed on the surface of the second heat-conducting plates 303. A liquid storage tank 305 is fixed on the back of the metering cabinet body 1. The liquid storage tank 305 is filled with coolant. A waterproof pump 306 is connected to the top of the liquid storage tank 305. The delivery end of the waterproof pump 306 passes through the air supply shell 301 through a pipe and is connected to one end of the serpentine tube 302. One end of the serpentine tube 302 passes through the air supply shell 301 and is connected to the top of the liquid storage tank 305.

[0032] Through the above technical solution, the liquid storage tank 305 constructs a coolant circulation path through the waterproof pump 306 and the serpentine tube 302, the second heat-conducting plate 303 increases the heat exchange area, the waterproof pump 306 drives the coolant circulation, and the third fan 304 generates airflow to enhance convective heat transfer, so that the cooling capacity of the serpentine tube 302 can be transferred to the inside of the metering cabinet body 1 by the third fan 304, thereby improving the heat dissipation effect inside the metering cabinet body 1, which is particularly suitable for continuous heat dissipation requirements in high-temperature environments.

[0033] A semiconductor cooler 307 is fixed on the surface of the liquid storage tank 305, and a fourth fan 308 is fixed on the surface of the semiconductor cooler 307.

[0034] Through the above technical solution, the semiconductor cooler 307, together with the fourth fan 308, constructs an active cooling system. The semiconductor cooler 307 achieves the cooling effect on the coolant inside the liquid storage tank 305 by having its cooling surface in close contact with the wall of the liquid storage tank 305, while the hot surface is forcibly cooled by the fourth fan 308, ensuring that the semiconductor cooler 307 can perform cooling work for a long time.

[0035] A rainproof shell 309 is fixed to the surface of the liquid storage tank 305. Multiple ventilation slots are opened on the surface of the rainproof shell 309, and multiple second rain guide plates 310 are fixed to the surface of the rainproof shell 309.

[0036] Through the above technical solution, the rainproof shell 309 can directly protect the semiconductor cooler 307 and the fourth fan 308 from rain. The exhaust duct is used to ensure the normal discharge of hot air. The second rain guide plate 310 forms a rainwater guiding channel, making it difficult for rainwater to enter the interior of the rainproof shell 309.

[0037] A third dustproof net 311 is fixed to the surface of the exhaust duct of the rainproof shell 309.

[0038] Through the above technical solution, the design of the third dustproof net 311 can effectively reduce the amount of dust entering the rainproof shell 309 through the exhaust duct when the fourth fan 308 is not working.

[0039] The third fan 304, waterproof pump 306, fourth fan 308, hydraulic cylinder 208, second fan 206, first fan 201, temperature sensor 214 and rain sensor 204 are all electrically connected to controller 215.

[0040] Working principle: Under normal conditions, the first fan 201 and the second fan 206 operate synchronously, forming a vertical air duct with air intake on both sides and exhaust at the top. Basic heat dissipation is achieved by utilizing the principle of natural convection. At this time, the hydraulic cylinder 208 is in the retracted position, and one side of the air intake shell 205 is fully exposed, providing a larger air intake area. When the rain sensor 204 detects rainfall, the rain shield 203 guides and protects the rainwater at the top. The hydraulic cylinder 208 drives the baffle plate 210 to rise, thereby shielding the air intake shell 205 and allowing air to maintain ventilation through the ventilator. At the same time, the third fan 304 of the auxiliary heat dissipation mechanism 3 starts, and the coolant in the serpentine tube 302 circulates to remove heat. The coolant is cooled by the semiconductor cooler 307 on the surface of the liquid storage tank 305. Through this multi-protection and heat dissipation enhancement mechanism, the metering cabinet body 1 can have a good rainproof effect while also having a better heat dissipation effect, ensuring the normal operation of the equipment in the outdoor environment.

[0041] Although specific embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these specific embodiments without departing from the principles and spirit, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An outdoor rainproof power safety metering cabinet with good heat dissipation, comprising a metering cabinet body (1), characterized in that: The metering cabinet body (1) is provided with a rainproof heat dissipation mechanism (2) and an auxiliary heat dissipation mechanism (3) on its surface; The rainproof and heat dissipation mechanism (2) includes a first fan (201). The metering cabinet body (1) has an installation groove on its top. The first fan (201) is fixed to the inner wall of the installation groove. Four support plates are fixed to the top of the metering cabinet body (1). A first dustproof net (202) is fixed to the surface of the support plates. A rain shield (203) is fixed to the top of the first dustproof net (202). A rain sensor (204) is fixed to the top of the rain shield (203). A temperature sensor (214) and a controller (215) are fixed to the inner wall of the metering cabinet body (1). The cabinet body (1) has air inlet shells (205) connected to both the left and right sides. A second fan (206) and a second dustproof net (207) are fixed on the surface of the air inlet shell (205). A hydraulic cylinder (208) is fixed at the bottom of the air inlet shell (205). One end of the hydraulic cylinder (208) passes through the air inlet shell (205) and is fixed with a connecting plate (209). A baffle plate (210) is fixed on the surface of the connecting plate (209). Multiple ventilation grooves are opened on the surface of the baffle plate (210). Multiple first rain guide inclined plates (211) are fixed on the surface of the baffle plate (210).

2. The outdoor rainproof electric power safety metering cabinet with good heat dissipation effect according to claim 1, characterized in that: A waterproof and breathable membrane (212) is fixed to the surface of the ventilation groove of the baffle plate (210), and a first heat-conducting sheet (216) is fixed to the top of the rain shelter (203).

3. The outdoor rainproof electric power safety metering cabinet with good heat dissipation effect according to claim 1, characterized in that: Two guide rods (213) are fixed to the inner wall of the air inlet shell (205), and the connecting plate (209) is slidably connected to the surface of the guide rods (213).

4. The outdoor rainproof electric power safety metering cabinet with good heat dissipation effect according to claim 1, characterized in that: The auxiliary heat dissipation mechanism (3) includes an air supply shell (301) and a serpentine tube (302). The air supply shell (301) is connected to the back of the metering cabinet body (1). A plurality of second heat-conducting plates (303) are fixed on the surface of the serpentine tube (302). The surface of the second heat-conducting plates (303) is fixedly connected to the inner wall of the air supply shell (301). A third fan (304) is fixed on the surface of the second heat-conducting plates (303). A liquid storage tank (305) is fixed on the back of the metering cabinet body (1). The liquid storage tank (305) is filled with coolant. A waterproof pump (306) is connected to the top of the liquid storage tank (305). The delivery end of the waterproof pump (306) passes through the air supply shell (301) through a pipe and is connected to one end of the serpentine tube (302). One end of the serpentine tube (302) passes through the air supply shell (301) and is connected to the top of the liquid storage tank (305).

5. The outdoor rainproof power safety metering cabinet with good heat dissipation effect according to claim 4, characterized in that: A semiconductor cooler (307) is fixed on the surface of the liquid storage tank (305), and a fourth fan (308) is fixed on the surface of the semiconductor cooler (307).

6. The outdoor rainproof power safety metering cabinet with good heat dissipation effect according to claim 4, characterized in that: The liquid storage tank (305) is fixed with a rainproof shell (309), the rainproof shell (309) has multiple ventilation slots on its surface, and multiple second rain guide plates (310) are fixed on its surface.

7. The outdoor rainproof power safety metering cabinet with good heat dissipation effect according to claim 6, characterized in that: A third dustproof net (311) is fixed to the surface of the exhaust duct of the rainproof shell (309).

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