Energy-saving outdoor electrical cabinet
By combining solar panels and heating devices, and utilizing underground heat to regulate temperature, the energy consumption problem of outdoor electrical cabinets in cold and high temperature environments is solved, achieving stable operation with low energy consumption.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YANGBAO ELECTRONICS TAICANG
- Filing Date
- 2025-06-03
- Publication Date
- 2026-06-26
AI Technical Summary
Traditional outdoor electrical cabinets consume a lot of energy in cold regions and have difficulty dissipating heat. They also cannot meet the heat dissipation requirements in high-temperature environments, which affects the lifespan of the equipment and the reliability of the system.
The system combines solar panels and heating devices to generate electricity from solar energy and regulate temperature through a heat exchanger. It also incorporates insulation panels and heat-insulating sealing heads to reduce energy consumption and utilizes underground heat for heat dissipation.
It enables low-energy operation in cold regions, avoids condensation and overheating, improves equipment life and system reliability, and reduces power consumption.
Smart Images
Figure CN224418243U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of industrial control equipment technology, specifically relating to an energy-saving outdoor electrical cabinet. Background Technology
[0002] Outdoor electrical control cabinets are widely used in communication base stations, power systems, smart substations, industrial automation equipment, energy storage systems, and other fields. They are critical infrastructure for ensuring stable operation of equipment in extreme environments. Especially in cold regions, outdoor electrical control cabinets must withstand challenges such as low temperatures, frost, and condensation for extended periods, and their temperature control performance directly affects equipment lifespan and system reliability. Traditional electrical control cabinets use electric heating devices to ensure stable operation in cold regions, resulting in high energy consumption. Furthermore, their heat dissipation typically relies on fans, which are insufficient for high-temperature environments in summer, requiring additional cooling equipment to expel heat from the cabinet and further increasing energy consumption.
[0003] Therefore, the above problems urgently need to be solved. Utility Model Content
[0004] Purpose of the utility model: In order to overcome the above shortcomings, this utility model provides an energy-saving outdoor electrical cabinet that utilizes solar and geothermal energy to maintain the electrical cabinet at the working temperature, thereby saving energy and improving energy efficiency.
[0005] Technical Solution: To achieve the above objectives, this utility model provides an energy-saving outdoor electrical cabinet, including a cabinet body. A solar panel is connected to the top of the cabinet body. Inside the cabinet body are a battery, a heating device, and a temperature detection device. The solar panel, battery, and heating device are electrically connected. The temperature detection device and heating device are electrically connected to a control system. A heat exchange device is connected to the cabinet body, including a heat exchanger and a liquid tank. The heat exchanger is connected inside the cabinet body, and the liquid tank is located underground. The heat exchanger and liquid tank are connected via a water pump pipe. The water pump is electrically connected to the control system. The liquid tank is preferably made of stainless steel. This utility model is installed outdoors and is suitable for extremely cold environments. During the day, the solar panel absorbs solar energy to generate electricity, which is stored in the battery. The battery provides power for the heating device, preventing condensation and short circuits caused by excessively low internal cabinet temperatures. When the temperature detection device detects that the internal temperature of the cabinet is below a threshold, the control system starts the water pump, pumping water from the liquid tank into the heat exchanger, transferring heat energy into the cabinet body, increasing the internal temperature, reducing the operating power of the heating device, and lowering energy consumption. When the temperature detection device detects that the internal temperature of the cabinet exceeds the threshold, the control system cuts off the power to the heating device and starts the water pump. Water from the liquid tank is pumped into the heat exchanger and then back into the liquid tank, transferring heat from inside the cabinet to the liquid tank. The heat is then dissipated into the soil through the tank's outer shell, preventing overheating and damage to electrical components. This invention utilizes solar panels and a heating device to continuously heat the cabinet's interior using electricity generated by the solar panels, preventing condensation. The heat exchanger transfers underground heat into the cabinet, reducing power consumption and saving energy. Water cooling further enhances the design, resulting in a simple structure and low energy consumption.
[0006] Furthermore, in the aforementioned energy-saving outdoor electrical cabinet, the liquid tank includes a first liquid tank and a second liquid tank, which are connected by a one-way valve. When the internal temperature of the cabinet is too high, cooling water is sent from the second liquid tank to the heat exchanger. After absorbing heat in the heat exchanger, it is sent to the first liquid tank, forcing the cooling water in the first liquid tank into the second liquid tank. The one-way valve prevents water from the first liquid tank from entering the second liquid tank. The cooling water flowing out of the heat exchanger enters the second liquid tank, mixes with the cooling water in the second tank, and dissipates heat into the soil through the shell of the second liquid tank, reducing the amount of heat entering the first liquid tank and ensuring a cooling effect. Similarly, when the internal temperature of the cabinet is too low, the second liquid tank is kept at a higher temperature to ensure a heating effect. The one-way valve reduces heat exchange between the first and second liquid tanks, ensuring a temperature regulation effect.
[0007] Furthermore, in the aforementioned energy-saving outdoor electrical cabinet, the cabinet body is constructed of an insulation panel, which includes a metal layer, a heat insulation layer, and a protective layer, arranged sequentially from the outside in. The metal layer and the protective layer are both made of steel plate. The heat insulation layer prevents heat exchange between the inside and outside of the cabinet, reducing energy consumption and saving energy.
[0008] Furthermore, in the aforementioned energy-saving outdoor electrical cabinet, the cabinet body is equipped with multiple cable inlets, each with a heat-insulating sealing head. The heat-insulating sealing head includes a pressure head, an O-ring, and a connector. The connector is threaded to the protective layer, the O-ring is fitted onto the outside of the cable, and one side of the O-ring abuts against the connector. The pressure head is threaded to the metal layer, and the pressure head compresses the O-ring, forming a sealed connection between the O-ring and the cable. The cabinet needs to connect power cables, control cables, etc., and the cable inlet is a key area for heat exchange between the inside and outside of the cabinet. The heat-insulating sealing head at the cable inlet, by compressing the O-ring, ensures the O-ring adheres tightly to the outer circumference of the cable, forming a seal and isolating the pressure head and connector, preventing contact between them, reducing energy exchange between the inside and outside of the cabinet, and improving energy efficiency.
[0009] Furthermore, in the aforementioned energy-saving outdoor electrical cabinet, the inner wall of the pressure head near the connector end has a bevel, which is inclined towards the outside of the O-ring. The connector near the pressure head end has a ramp, with the ramp and bevel positioned accordingly. The ramp and ramp together compress the O-ring. When the ramp compresses the O-ring, and the two sides of the O-ring abut against the ramp and ramp respectively, continuing to twist the pressure head causes the O-ring to deform inward due to the ramp's influence on its outer side, compressing the outer circumference of the cable and creating a sealed connection between the O-ring and the cable. The ramp and ramp form a constraint space, limiting the deformation direction of the O-ring, ensuring a tight seal between the O-ring and the cable, improving insulation, and enhancing the cabinet's energy efficiency.
[0010] Furthermore, in the aforementioned energy-saving outdoor electrical cabinet, the heat exchanger includes a coil and a set of fins. The coil is arranged in a serpentine pattern, and the fins are arranged in parallel. The coil passes between the fins. A fan is located at the bottom of the heat exchanger. Forced airflow from the fan propels the air inside the cabinet through the heat exchanger quickly, improving heat exchange efficiency. The fan is preferably a variable frequency fan, which uses variable frequency technology to adjust the fan speed to match heat exchange requirements and reduce energy consumption.
[0011] Furthermore, in the aforementioned energy-saving outdoor electrical cabinet, the heating device is a PTC heating plate, which is connected to the bottom of the cabinet.
[0012] Furthermore, in the aforementioned energy-saving outdoor electrical cabinet, the insulation layer is made of flame-retardant polyurethane.
[0013] As can be seen from the above technical solution, this utility model has the following beneficial effects: The energy-saving outdoor electrical cabinet of this utility model is equipped with a solar panel and a heating device. The electricity generated by the solar panel continuously heats the inside of the cabinet, preventing condensation. A heat exchange device transfers underground heat into the cabinet, reducing the power consumption of the heating device and saving energy. A heat-insulating sealing head is installed at the cable inlet. By compressing the O-ring, it is made to fit tightly against the outer circumference of the cable, forming a seal, reducing energy exchange between the inside and outside of the cabinet, and improving energy efficiency. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of the energy-saving outdoor electrical cabinet of this utility model;
[0015] Figure 2 This is an internal schematic diagram of the energy-saving outdoor electrical cabinet of this utility model;
[0016] Figure 3 This is a cross-sectional view of the insulation board;
[0017] Figure 4 This is a cross-sectional view of the heat-insulating sealing head;
[0018] Figure 5 for Figure 4 Enlarged view of a specific area;
[0019] Figure 6 for Figure 2 A partial enlarged view of the switch described in the image.
[0020] In the diagram: 1. Cabinet, 11. Metal layer, 12. Insulation layer, 13. Protective layer, 14. Insulation sealing head, 141. Pressure head, 1411. Bevel, 142. O-ring, 143. Connector, 1421. Inclined platform, 2. Solar panel, 3. Battery, 4. Heating device, 5. Temperature detection device, 6. Heat exchange device, 61. Heat exchanger, 611. Coil, 612. Fins, 62. Liquid tank, 621. First liquid tank, 622. Second liquid tank, 623. One-way valve, 7. Fan. Detailed Implementation
[0021] Example 1
[0022] like Figure 1-2The diagram shows an energy-saving outdoor electrical cabinet, comprising a cabinet body 1, with a solar panel 2 connected to the top of the cabinet body 1. Inside the cabinet body 1 are a battery 3, a heating device 4, and a temperature detection device 5. The solar panel 2, battery 3, and heating device 4 are electrically connected, and the temperature detection device 5 and heating device 4 are electrically connected to a control system. A heat exchange device 6 is connected to the cabinet body 1, comprising a heat exchanger 61 and a liquid tank 62. The heat exchanger 61 is connected inside the cabinet body 1, and the liquid tank 62 is located underground. The heat exchanger 61 and the liquid tank 62 are connected via a water pump pipe, and the water pump is electrically connected to the control system. The liquid tank 62 is preferably made of stainless steel.
[0023] In this embodiment, the liquid tank 62 includes a first liquid tank 621 and a second liquid tank 622, and the first liquid tank 621 and the second liquid tank 622 are connected by a one-way valve 623.
[0024] In this embodiment, the heating device 4 is a PTC heating plate, and the heating device 4 is connected to the bottom of the cabinet 1.
[0025] like Figure 3 The energy-saving outdoor electrical cabinet shown has a cabinet body 1 made of an insulation panel. The insulation panel includes a metal layer 11, a heat insulation layer 12, and a protective layer 13, arranged sequentially from the outside to the inside. The metal layer 11 and the protective layer 13 are made of steel plate. The heat insulation layer 12 is made of flame-retardant polyurethane.
[0026] like Figure 4 The energy-saving outdoor electrical cabinet shown has multiple cable inlets on cabinet 1, and each cable inlet is equipped with a heat-insulating sealing head 14 (see...). Figure 1 The heat-insulating sealing head 14 includes a pressure head 141, an O-ring 142, and a connector 143. The connector 143 is threaded to the protective layer 13. The O-ring 142 is fitted onto the outside of the cable, with one side of the O-ring 142 abutting against the connector 143. The pressure head 141 is threaded to the metal layer 11. The pressure head 141 compresses the O-ring 142, forming a sealed connection between the O-ring 142 and the cable. The cabinet 1 needs to be connected to power cables, control cables, etc. The inlet hole is a key area for heat exchange between the inside and outside of the cabinet 1. A heat-insulating sealing head 14 is installed at the inlet hole. By compressing the O-ring 142, the O-ring 142 is pressed tightly against the outer circumference of the cable, forming a seal and isolating the pressure head 141 and the connector 143, preventing contact between them, reducing energy exchange between the inside and outside of the cabinet 1, and improving energy efficiency. The pressure head 141 and the connector 143 contact each other through the O-ring 142. No special materials are required for the pressure head 141 and the connector 143 to achieve good heat insulation.
[0027] like Figure 5The energy-saving outdoor electrical cabinet shown has an inclined surface 1411 on the inner wall of the pressure head 141 near the connector 143, which is inclined outwards towards the O-ring 142. The connector 143 has a ramp 1421 near the pressure head 141, with the ramp 1421 and inclined surface 1411 correspondingly positioned. The ramp 1411 and ramp 1421 together compress the O-ring 142. When the inclined plane 1411 presses the O-ring 142, and the two sides of the O-ring 142 abut against the inclined plane 1411 and the inclined platform 1421 respectively, the pressure head 141 is continued to be turned. Because the outer side of the O-ring 142 is subjected to the inclined plane 1411, the O-ring 142 deforms inward, pressing the outer circumference of the cable, so that the O-ring 142 and the cable are sealed together. The inclined platform 1421 and the inclined plane 1411 form a constraint space, which limits the deformation direction of the O-ring 142, ensures the sealing of the connection between the O-ring 142 and the cable, improves the heat insulation effect, and improves the energy efficiency level of the cabinet 1.
[0028] like Figure 6 The energy-saving outdoor electrical cabinet shown includes a heat exchanger 61 comprising a coil 611 and a set of fins 612. The coil 611 is arranged in a serpentine pattern, and the fins 612 are arranged in parallel. The coil 611 passes through the spaces between the fins 612. A fan 7 is located at the bottom of the heat exchanger 61. The fan 7 forces airflow, pushing the air inside the cabinet 1 quickly through the heat exchanger 61, thereby improving heat exchange efficiency. The fan 7 is preferably a variable frequency fan, which adjusts the fan speed using variable frequency technology to match heat exchange requirements and reduce energy consumption.
[0029] This invention is installed outdoors, with the liquid tank 62 buried 5m underground. Due to the insulation effect of the soil, the water temperature in the liquid tank 62 is maintained at approximately the annual average temperature. During the day, the solar panel 2 absorbs solar energy to generate electricity, which is stored in the battery 3. The battery 3 provides power for the heating device 4, which maintains the internal temperature of the cabinet 1. When the temperature detection device 5 detects that the internal temperature of the cabinet 1 is lower than the threshold, the control system starts the water pump. The water pump draws water from the second liquid tank 622 and sends it to the heat exchange device 6. The heat exchange device 6 exchanges heat with the air inside the cabinet 1. After the water temperature drops in the heat exchange device 6, it is sent to the first liquid tank 621, and the water in the first liquid tank 621 is squeezed into the second liquid tank 622. The temperature of the first liquid tank 621 decreases due to the inflow of water from the heat exchange device 6, and the temperature of the first liquid tank 621 is lower than the surrounding soil temperature, so the first liquid tank 621 absorbs the soil temperature. When the water temperature in the second liquid tank 622 decreases due to the inflow of water from the first liquid tank 621, the second liquid tank 622 absorbs the surrounding soil temperature. The water pump continuously draws water from the second liquid tank 622 and pumps it into the heat exchange device 6 to raise the internal temperature of the cabinet 1.
[0030] When the temperature detection device 5 detects that the internal temperature of the cabinet 1 is higher than the threshold, the control system cuts off the power to the heating device 4 and starts the water pump. The cooling water in the second liquid tank 622 is pumped into the heat exchange device 6. After absorbing heat in the heat exchange device 6, it is sent to the first liquid tank 621, and the cooling water in the first liquid tank 621 is squeezed into the second liquid tank 622. The cooling water flowing out of the heat exchange device 6 enters the second liquid tank 622 and mixes with the cooling water in the second liquid tank 622. The temperature of the cooling water in the second liquid tank 622 rises, and the heat is dissipated into the soil through the shell of the second liquid tank 622. When the temperature of the first liquid tank 621 rises due to the influence of the second liquid tank 622, the first liquid tank 621 dissipates heat into the soil, reducing the temperature of the first liquid tank 621. The cooling water inside the second liquid tank 622 is continuously pumped into the heat exchange device 6, reducing the internal temperature of the cabinet 1 and reducing energy consumption.
[0031] The above embodiments are exemplary and are intended to illustrate the technical concept and features of this utility model, so that those skilled in the art can understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be covered within the scope of protection of this utility model.
Claims
1. An energy-saving outdoor electrical cabinet, characterized in that: The system includes a cabinet (1), with a solar panel (2) connected to the top of the cabinet (1). Inside the cabinet (1) are a storage battery (3), a heating device (4), and a temperature detection device (5). The solar panel (2), the storage battery (3), and the heating device (4) are electrically connected. The temperature detection device (5) and the heating device (4) are electrically connected to the control system. The cabinet (1) is connected to a heat exchange device (6), which includes a heat exchanger (61) and a liquid tank (62). The heat exchanger (61) is connected inside the cabinet (1), and the liquid tank (62) is located underground. The heat exchanger (61) and the liquid tank (62) are connected by a water pump and a liquid pipe.
2. The energy-saving outdoor electrical cabinet according to claim 1, characterized in that: The liquid tank (62) includes a first liquid tank (621) and a second liquid tank (622), which are connected by a one-way valve (623).
3. The energy-saving outdoor electrical cabinet according to claim 1, characterized in that: The cabinet (1) is made of an insulation board, which includes a metal layer (11), a heat insulation layer (12) and a protective layer (13), which are arranged sequentially from the outside to the inside.
4. The energy-saving outdoor electrical cabinet according to claim 3, characterized in that: The cabinet (1) is provided with multiple cable inlets, and a heat-insulating sealing head (14) is provided at each cable inlet. The heat-insulating sealing head (14) includes a pressure head (141), an O-ring (142) and a connector (143). The connector (143) is threaded to the protective layer (13). The O-ring (142) is fitted onto the outside of the cable. One side of the O-ring (142) abuts against the connector (143). The pressure head (141) is threaded to the metal layer (11). The pressure head (141) squeezes the O-ring (142) to form a sealed connection between the O-ring (142) and the cable.
5. The energy-saving outdoor electrical cabinet according to claim 4, characterized in that: The pressure head (141) has an inclined surface (1411) on the inner wall near the connector (143), and the inclined surface (1411) is inclined outward towards the O-ring (142); the connector (143) has a ramp (1421) near the pressure head (141), and the ramp (1421) and the inclined surface (1411) are respectively arranged; the inclined surface (1411) and the ramp (1421) together compress the O-ring (142).
6. The energy-saving outdoor electrical cabinet according to claim 1, characterized in that: The heat exchanger (61) includes a coil (611) and a set of fins (612). The coil (611) is arranged in a serpentine shape, and the set of fins (612) is arranged in parallel. The coil (611) passes through the fins (612). A fan (7) is provided on the lower side of the heat exchanger (61).
7. The energy-saving outdoor electrical cabinet according to claim 1, characterized in that: The heating device (4) is a PTC heating plate, and the heating device (4) is connected to the bottom of the cabinet (1).
8. The energy-saving outdoor electrical cabinet according to claim 3, characterized in that: The heat insulation layer (12) is made of flame-retardant polyurethane.