An environmentally friendly constant temperature substation distribution cabinet

Abstract

This invention discloses an environmentally friendly constant-temperature substation distribution cabinet, relating to the field of distribution cabinet devices. The environmentally friendly constant-temperature substation distribution cabinet includes a cabinet body and further includes: a rotating heat dissipation assembly installed on the rear side panel of the cabinet body, near the top of the cabinet body; the rotating heat dissipation assembly generates airflow through rotation to dissipate heat; and a wireless transmission device installed inside the cabinet body, electrically connected to the rotating heat dissipation assembly, used to receive and wirelessly transmit the operating information of the rotating heat dissipation assembly. This invention, through a rotating heat dissipation plate, combined with a sliding plate with a reset function and a conical hole structure, achieves both daily and rainy season cabinet sealing protection and automatically switches between different modes of heat exchange (natural heat exchange and high-speed accelerated heat dissipation) based on temperature sensor data, reducing maintenance costs in unattended scenarios and significantly improving the operational stability and service life of the distribution cabinet.

Description

Technical Field

[0001] This invention belongs to the technical field of power distribution cabinet devices, specifically, it relates to an environmentally friendly constant temperature power distribution cabinet for substations. Background Technology

[0002] As the core equipment for power transmission and distribution, outdoor substation distribution cabinets are exposed to complex natural environments for a long time and must cope with multiple challenges such as extreme temperatures, rain, snow, and humidity.

[0003] Existing products mostly rely on a single fixed-installation fan or passive heat sink. The fan can only achieve unidirectional airflow circulation, while the heat sink relies on simple heat conduction. Neither can dynamically adjust the heat dissipation intensity according to changes in the cabinet temperature. Under high temperature and high load conditions, the heat dissipation efficiency is low, making it difficult to quickly dissipate the large amount of accumulated heat. In addition, the fan has a large space, which can easily lead to rainwater infiltration and moisture entering the cabinet. This can not only cause short circuits and corrosion aging of electrical components, but may also cause equipment failure or even power outages. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a power distribution cabinet device that can overcome the above problems or at least partially solve the above problems.

[0005] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by the present invention is: an environmentally friendly constant-temperature substation distribution cabinet, including a distribution cabinet body, and further comprising:

[0006] A rotating heat dissipation component is installed on the rear side panel of the power distribution cabinet and near the top of the power distribution cabinet. The rotating heat dissipation component is used to generate airflow by rotating, thereby dissipating heat. A wireless transmission device is installed inside the power distribution cabinet. The wireless transmission device is electrically connected to the rotating heat dissipation assembly and is used to receive the operating information of the rotating heat dissipation assembly and transmit it wirelessly. At the same time, it receives remote control signals to realize remote control of the rotating heat dissipation assembly. An information collection component is installed inside the power distribution cabinet, and the information collection component is used to collect operating status information inside the power distribution cabinet; A control component is installed inside the power distribution cabinet. The control component is electrically connected to the information collection component, the rotating heat dissipation component, and the wireless transmission device. It is used to receive information collected by the information collection component, control the operation of the rotating heat dissipation component based on the information, and realize the wireless transmission of information and the reception of remote control commands through the wireless transmission device.

[0007] Furthermore, the rotating heat dissipation assembly includes a drive assembly and a rotating heat dissipation plate. Multiple sets of the rotating heat dissipation plates are rotatably connected to the rear side panel of the power distribution cabinet. The drive assembly is used to drive the rotating heat dissipation plate to rotate, thereby generating airflow to blow in external gas or expel internal heat.

[0008] Furthermore, the rotating heat sink is provided with multiple sets of tapered holes at equal intervals.

[0009] Furthermore, the rotating heat sink has two chambers inside, and each chamber is slidably connected to a sliding plate with a tapered hole, the tapered hole on the sliding plate matching the tapered hole on the rotating heat sink.

[0010] Furthermore, a spring is fixedly connected to the chamber, and the other end of the spring is fixedly connected to the sliding plate. When the rotating heat sink rotates, the centrifugal force generated drives the sliding plate to slide along the chamber, so that the conical hole on the sliding plate is completely connected with the conical hole on the rotating heat sink, forming a converging airflow channel with an inlet cross-section larger than the outlet cross-section, realizing high-speed airflow intake and accelerated exhaust. When the rotating heat sink stops rotating, the centrifugal force disappears, and the sliding plate is reset under the reset action of the spring, blocking the conical hole on the rotating heat sink.

[0011] Furthermore, a cover plate is detachably installed on the chamber of the rotating heat sink.

[0012] Furthermore, the drive assembly includes a motor, a worm gear, and a worm wheel. The output end of the worm gear is fixedly connected to the output end of the motor. The worm wheel is meshed with the worm gear and fixedly connected to the rotating heat sink.

[0013] Furthermore, an equipment box is fixedly connected to the power distribution cabinet, and all drive components are installed inside the equipment box.

[0014] Furthermore, the information collection component includes an infrared sensor and a temperature sensor. The infrared sensor is installed inside the equipment box to detect the position of the rotating heat sink, and the temperature sensor is installed on the top of the equipment box to detect the temperature inside the power distribution cabinet.

[0015] Furthermore, a rotating shaft is fixedly connected to both ends of the rotating heat sink, and the other end of the rotating shaft passes through the device box and is fixedly connected to a worm gear.

[0016] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art: The present invention, through the rotating heat dissipation plate, combined with the sliding plate with reset function and the conical hole structure, can not only achieve cabinet sealing protection in daily life and rainy season, but also automatically switch between the graded modes of natural heat exchange and high-speed accelerated heat dissipation according to the temperature sensor detection data. At the same time, it integrates infrared sensors, PLC drive components, control components, and LoRa drive components and wireless transmission devices to realize real-time monitoring and remote control of the cabinet status. Moreover, the components adopt a detachable structure design, which is convenient for maintenance. It effectively balances sealing protection and heat dissipation efficiency, reduces the operation and maintenance cost in unattended scenarios, and significantly improves the operation stability and service life of the power distribution cabinet. Attached Figure Description

[0017] In the attached diagram: Figure 1 This is a schematic diagram of the structure of an environmentally friendly constant-temperature substation distribution cabinet proposed in this invention. Figure 1 ; Figure 2 This is a schematic diagram of the structure of an environmentally friendly constant-temperature substation distribution cabinet proposed in this invention. Figure 2 ; Figure 3 This is a schematic diagram of the structure of an environmentally friendly constant-temperature substation distribution cabinet proposed in this invention. Figure 3 ; Figure 4 This is a schematic diagram of the structure of the back panel of the distribution cabinet in an environmentally friendly constant temperature substation distribution cabinet proposed in this invention. Figure 5 This invention proposes an environmentally friendly constant-temperature substation distribution cabinet. Figure 4 A schematic diagram of the structure of part A; Figure 6 This invention proposes an environmentally friendly constant-temperature substation distribution cabinet. Figure 4 A schematic diagram of the structure of part b in the middle; Figure 7 This is a schematic diagram of the structure of a rotating heat dissipation plate in an environmentally friendly constant-temperature substation distribution cabinet proposed in this invention. Figure 8 This invention proposes an environmentally friendly constant-temperature substation distribution cabinet. Figure 6 A structural diagram of section C; Figure 9 This is a schematic cross-sectional view of the rotating heat sink in an environmentally friendly constant-temperature substation distribution cabinet proposed in this invention. Figure 10 This is a cross-sectional view of the rotating heat sink in an environmentally friendly constant-temperature substation distribution cabinet proposed in this invention, before rotation.

[0018] In the diagram: 1. Distribution cabinet; 2. Rotating heat sink; 201. Rotating shaft; 202. Chamber; 203. Cover plate; 3. Equipment box; 401. Motor; 402. Worm gear; 403. Turbine; 5. Sliding plate; 6. Conical hole; 601. Spring component; 7. Infrared sensor; 8. Temperature sensor; 9. Wireless transmission device. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0020] Example: Refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 8 An environmentally friendly constant-temperature substation distribution cabinet includes a cabinet body 1, and further includes: The rotating heat dissipation component is installed on the rear side panel of the power distribution cabinet 1 and near the top of the power distribution cabinet 1. The rotating heat dissipation component is used to generate airflow by rotating, thereby dissipating heat. A wireless transmission device is installed inside the power distribution cabinet 1. The wireless transmission device is electrically connected to the rotating heat dissipation component and is used to receive the operating information of the rotating heat dissipation component and transmit it wirelessly. At the same time, it receives remote control signals to realize remote control of the rotating heat dissipation component. The wireless transmission device uses an SX1278 LoRa remote communication module, which is integrated on the circuit board of the control component and installed on the electrical mounting plate on the right side inside cabinet 1 (300mm from the top). It is electrically connected to the control component and the rotating heat dissipation component through RVV2×0.75mm² shielded wire. The communication frequency band is 433MHz (matching the industrial IoT frequency band of substations), the communication coverage radius is ≥500m, and it supports bidirectional data transmission.

[0021] An information collection component is installed inside the power distribution cabinet 1. The information collection component is used to collect the operating status information inside the power distribution cabinet 1. Specifically, the information collection components include an infrared sensor 7 and a temperature sensor 8. The infrared sensor 7 is an E18-D80NK type diffuse reflection photoelectric sensor, which is fixed inside the equipment box 3 on the left side (facing the edge of the rotating heat sink 2) by a bracket, with a detection distance of 0-80cm, and is used to collect the position signal of the rotating heat sink 2 in real time. The temperature sensor 8 is a PT100 platinum resistance sensor, which is installed next to the electrical component cluster in the middle of the cabinet 1, with a detection range of -20℃ to 150℃ and an accuracy of ±0.5℃, and is used to collect the ambient temperature inside the cabinet.

[0022] The control component is installed inside the power distribution cabinet 1. The control component is electrically connected to the information collection component, the rotating heat dissipation component and the wireless transmission device. It is used to receive information collected by the information collection component, control the operation of the rotating heat dissipation component according to the information, and realize the wireless transmission of information and the reception of remote control commands through the wireless transmission device.

[0023] Furthermore, the control component adopts a Siemens S7-200SMART small PLC controller (model CPUST20), which is integrated with the wireless transmission device on the same circuit board. It is equipped with 12 digital input / output ports and 4 analog input ports. The input ports are connected to the signal output terminals of infrared sensor 7 and temperature sensor 8 through shielded wires, respectively. The output ports are connected to the motor 401 of the rotating heat dissipation component through a relay module to realize the start and stop control of the heat dissipation component.

[0024] During installation, the wireless transmission device, control components, infrared sensor 7, and temperature sensor 8 are all powered by the secondary circuit power supply system of the power distribution cabinet 1 (voltage 220VAC to 24VDC). The power supply branch is connected in series with a 1A overload protection fuse and a surge protector to avoid damage to the components due to voltage fluctuations or overloads, and to ensure that the normal power supply of the main circuit of cabinet 1 is not affected.

[0025] In actual use, the control component receives temperature and position data of the information collection component in real time, judges the operating status through the built-in program, and uploads the data to the substation remote monitoring platform through a wireless transmission device. The remote platform can send control commands to the control component through the wireless transmission device to realize remote control of the rotating heat dissipation component.

[0026] Specifically, such as Figure 4 , Figure 5 , Figure 6 , Figure 8 As shown, the rotating heat dissipation assembly includes a drive assembly and a rotating heat dissipation plate 2. Multiple sets of rotating heat dissipation plates 2 are rotatably connected to the rear side panel of the power distribution cabinet 1. The drive assembly is used to drive the rotating heat dissipation plate 2, thereby causing it to rotate and generate airflow, blowing in external gas or dissipating internal heat.

[0027] Specifically, such as Figure 7 , Figure 9 , Figure 10 As shown, multiple sets of tapered holes 6 are evenly spaced on the rotating heat sink 2.

[0028] The rotating heat sink 2 has two chambers 202 inside, and each chamber is slidably connected to a sliding plate 5 with a conical hole 6. The conical hole 6 on the sliding plate 5 matches the conical hole 6 on the rotating heat sink 2.

[0029] Specifically, such as Figure 9 , Figure 10 A spring 601 is fixedly connected inside the chamber 202, and the other end of the spring 601 is fixedly connected to the sliding plate 5. When the rotating heat sink 2 rotates, the centrifugal force generated drives the sliding plate 5 to slide along the chamber 202, so that the conical hole 6 on the sliding plate 5 is completely connected with the conical hole 6 on the rotating heat sink 2, forming a converging airflow channel with an inlet cross-section larger than the outlet cross-section, realizing high-speed airflow intake and accelerated exhaust. When the rotating heat sink 2 stops rotating, the centrifugal force disappears, and the sliding plate 5 is reset under the reset action of the spring 601, blocking the conical hole 6 on the rotating heat sink 2.

[0030] To facilitate disassembly and maintenance, a cover plate 203 is detachably installed on the chamber 202 of the rotating heat sink 2.

[0031] The drive assembly includes a motor 401, a worm gear 402, and a worm wheel 403. The output end of the worm gear 402 is fixedly connected to the output end of the motor 401. The worm wheel 403 is meshed with the worm gear 402 and is fixedly connected to the rotating heat sink 2. An equipment box 3 is fixedly connected to the cabinet 1 of the power distribution cabinet, and all drive assemblies are installed in the equipment box 3.

[0032] Rotating shafts 201 are fixedly connected to both ends of the rotating heat sink 2. The other end of the rotating shaft 201 passes through the device box 3 and is fixedly connected to the worm gear 403.

[0033] When using it at this time: Daily initial state and system self-check After the distribution cabinet is powered on, the secondary circuits are powered on synchronously: The control components initiate a self-test, sequentially checking the communication connectivity of temperature sensor 8, infrared sensor 7, and motor 401. The self-test results are uploaded to the substation remote monitoring platform via a wireless transmission device. After the self-test is completed, the control component sends a reset command to the motor 401. The worm gear 402 and worm wheel 403 drive the rotating heat sink 2 to rotate to the initial position of vertically fitting the rear panel of the cabinet 1. The infrared sensor 7 detects the vertical position signal and feeds it back to the control component. The PLC locks the state. Under the elastic force of the spring 601, the sliding plate 5 completely blocks the conical hole 6 on the rotating heat sink 2, forming a sealed structure on the back of the cabinet 1 (which can prevent rainwater and moisture from entering during the rainy season).

[0034] The control components have preset temperature thresholds: low temperature <40℃, medium temperature 40℃~50℃, and high temperature ≥50℃. Temperature sensor 8 collects data at a default frequency of 10 seconds / time.

[0035] Temperature sensor 8 continuously collects data. The PLC determines that the temperature is below the medium temperature threshold and maintains the "vertical sealing state of the rotating heat sink 2". The wireless transmission device uploads the current temperature, rotating plate position, and component operating status to the remote platform at a frequency of 5 minutes per transmission. During the rainy season, the PLC triggers an environmental warning signal from the remote platform, which in turn triggers infrared sensor 7 to check the position of the rotating plate twice every 2 minutes to ensure there is no deviation.

[0036] When the temperature sensor 8 collects a temperature ≥40℃ twice in a row, the PLC sends a pulse command to the motor 401 to drive the rotating heat sink 2 to rotate 15° at a small angle. After the infrared sensor 7 detects the 15° position signal, it feeds back to the PLC. The PLC immediately stops the motor 401, and the rotating heat sink 2 forms a convection gap of about 2cm in width with the rear side of the cabinet 1 to achieve natural heat exchange. The temperature sensor 8 increases its sampling frequency to 5 seconds / time. When the temperature drops below 38℃ (to avoid frequent start-stop), the PLC controls the rotating plate 2 to reset to the vertical sealing state.

[0037] When the temperature sensor 8 detects a temperature ≥50℃, the PLC sends a continuous operation command to the motor 401 to drive the rotating heat sink 2 to rotate. The centrifugal force generated by the rotation overcomes the elastic force of the spring 601, pushing the sliding plate 5 to slide along the chamber 202, so that the sliding plate 5 is fully connected with the conical hole 6 of the rotating heat sink 2, forming a converging airflow channel with a "large inlet and small outlet", and the airflow velocity is increased compared with natural convection. The temperature sensor 8 increases its sampling frequency to 1 second / time. When the temperature drops below 40℃, the PLC stops the motor 401, the centrifugal force disappears, the sliding plate 5 resets under the action of the spring 601 to block the conical hole 6, and the rotating plate 2 returns to the vertical state.

[0038] The remote monitoring platform communicates with the wireless transmission device in real time, allowing maintenance personnel to perform the following operations: The platform receives device data every 30 seconds and displays it in a visual chart. A fault alarm is triggered immediately when component communication is interrupted. Temperature threshold and rotary plate speed can be remotely modified. The command is transmitted to the PLC via LoRa module. After the PLC updates the parameters, it sends back a confirmation signal.

[0039] If motor 401 jams, causing rotating plate 2 to fail to reach the target position: Infrared sensor 7 sends a "position abnormality" signal to the PLC; The PLC triggers a fault alarm and uploads the fault information via a wireless transmission device; Maintenance personnel can remotely issue "jog commands" to attempt a reset; if the reset fails, on-site repairs will be arranged.

[0040] In summary, when this device is in use, after the power distribution cabinet is powered on, the secondary circuit supplies power to each component. The control component automatically detects the status of the sensor, motor drive component 401, and communication module. After the detection is passed, the motor drive component 401 drives the rotating heat sink drive component 2 to reset to the vertical sealing state, and the sliding plate drive component 5 blocks the conical hole drive component 6 to prevent external gas or rainwater from entering.

[0041] Low temperature conditions (<40℃): Temperature sensor drive component 8 continuously monitors the temperature, control component keeps the rotating heat sink drive component 2 vertically sealed, wireless transmission device uploads equipment status at regular intervals, and automatically verifies the sealing position during the rainy season.

[0042] Medium temperature condition (40℃~50℃): After the temperature reaches the target, the control component instructs the motor drive component 401 to reverse the drive component by 15°. The rotating heat sink drive component 2 and the cabinet drive component 1 form a gap. The slight airflow generated by the reverse rotation draws in cold air from the outside, achieving natural heat exchange. When the temperature drops below 38℃ of the drive component, the motor drive component 401 rotates forward to reset and restores the seal.

[0043] High temperature conditions (≥50℃): The control component instructs the motor drive component 401 to rotate forward at high speed (1200r / min). Centrifugal force connects the conical hole drive component 6, accelerating the discharge of hot air from the cabinet. If the negative pressure inside the cabinet is too high, the motor drive component 401 can be switched to rotate in reverse at high speed. Cold air is drawn in through the conical hole drive component 6 to enhance heat exchange. The motor stops and the component resets when the temperature drops below 40℃.

[0044] This invention utilizes a rotating heat sink 2, combined with a sliding plate 5 with a reset function and a conical hole 6 structure, to achieve both daily and rainy season cabinet sealing protection and automatic switching between different modes of natural heat exchange and high-speed accelerated heat dissipation based on temperature sensor data. It also integrates an infrared sensor 7, a PLC drive component, a LoRa drive component, and a wireless transmission device to enable real-time monitoring and remote control of the cabinet's internal status. Furthermore, the components feature a detachable design for easy maintenance, effectively balancing sealing protection and heat dissipation efficiency, reducing maintenance costs in unattended scenarios, and significantly improving the operational stability and lifespan of the power distribution cabinet.

[0045] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. An environmentally friendly constant temperature type power distribution cabinet for a substation, comprising a power distribution cabinet body (1), characterized in that, Also includes: A rotating heat dissipation component is installed on the rear side panel of the power distribution cabinet (1) and close to the top of the power distribution cabinet (1). The rotating heat dissipation component is used to generate airflow by rotating, thereby dissipating heat. A wireless transmission device is installed inside the cabinet (1) of the power distribution cabinet. The wireless transmission device is electrically connected to the rotating heat dissipation component and is used to receive the operating information of the rotating heat dissipation component and transmit it wirelessly. At the same time, it receives remote control signals to realize remote control of the rotating heat dissipation component. An information collection component is installed inside the power distribution cabinet (1). The information collection component is used to collect the operating status information inside the power distribution cabinet (1). The control component is installed inside the power distribution cabinet (1). The control component is electrically connected to the information collection component, the rotating heat dissipation component and the wireless transmission device respectively. It is used to receive the information collected by the information collection component, control the operation of the rotating heat dissipation component according to the information, and realize the wireless transmission of information and the reception of remote control commands through the wireless transmission device.

2. The environmentally friendly constant temperature power distribution cabinet for a substation according to claim 1, characterized in that, The rotating heat dissipation assembly includes a drive assembly and a rotating heat dissipation plate (2). Multiple sets of the rotating heat dissipation plates (2) are rotatably connected to the rear side panel of the power distribution cabinet (1). The drive assembly is used to drive the rotating heat dissipation plate (2) to rotate, thereby generating airflow to blow in external gas or expel internal heat.

3. The environmentally friendly constant temperature power distribution cabinet for a substation according to claim 2, characterized in that, The rotating heat sink (2) is provided with multiple sets of conical holes (6) at equal intervals.

4. The environmentally friendly constant-temperature power distribution cabinet for a substation according to claim 3, characterized in that, The rotating heat sink (2) has two chambers (202) inside, and each chamber is slidably connected to a sliding plate (5) with a conical hole (6). The conical hole (6) on the sliding plate (5) matches the conical hole (6) on the rotating heat sink (2).

5. The environmentally friendly constant temperature power distribution cabinet for a substation according to claim 4, characterized in that, A spring (601) is fixedly connected inside the chamber (202), and the other end of the spring (601) is fixedly connected to the sliding plate (5). When the rotating heat sink (2) rotates, the centrifugal force generated drives the sliding plate (5) to slide along the chamber (202), so that the conical hole (6) on the sliding plate (5) is completely connected with the conical hole (6) on the rotating heat sink (2), forming a converging airflow channel with an inlet cross section larger than the outlet cross section, thereby realizing high-speed airflow intake and accelerated exhaust. When the rotating heat sink (2) stops rotating, the centrifugal force disappears, and the sliding plate (5) is reset by the reset action of the spring (601), blocking the conical hole (6) on the rotating heat sink (2).

6. The environmentally friendly constant temperature power distribution cabinet for a substation according to claim 4, characterized in that, A cover plate (203) is detachably installed on the chamber (202) of the rotating heat sink (2).

7. The environmentally friendly constant temperature power distribution cabinet for a substation according to claim 6, characterized in that, The drive assembly includes a motor (401), a worm (402), and a worm wheel (403). The output end of the worm (402) is fixedly connected to the output end of the motor (401). The worm wheel (403) is meshed with the worm (402) and is fixedly connected to the rotating heat sink (2).

8. The environmentally friendly constant-temperature power distribution cabinet for a substation according to claim 7, characterized in that, The power distribution cabinet (1) is fixedly connected to the equipment box (3), and the drive components are all installed inside the equipment box (3).

9. The environmentally friendly constant temperature power distribution cabinet for a substation of claim 1, characterized in that, The information collection component includes an infrared sensor (7) and a temperature sensor (8). The infrared sensor (7) is installed inside the equipment box (3) to detect the position of the rotating heat sink (2). The temperature sensor (8) is installed on the top of the equipment box (3) to detect the temperature inside the power distribution cabinet (1).

10. The environmentally friendly constant temperature power distribution cabinet for a substation of claim 7, characterized in that, Rotating shafts (201) are fixedly connected to both ends of the rotating heat sink (2), and the other end of the rotating shafts (201) passes through the equipment box (3) and is fixedly connected to the worm gear (403).

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