Low-voltage power distribution cabinet wireless automatic temperature measurement system

Abstract

This utility model relates to the field of temperature measurement technology for low-voltage distribution cabinets, specifically a wireless automatic temperature measurement system for low-voltage distribution cabinets. This utility model utilizes an adaptive heat dissipation assembly consisting of a thermal expansion plate, an elastic push rod, an air guide plate, and a miniature fan. Based on temperature changes in the signal processing module, it automatically adjusts the position of the air guide plate, optimizing the airflow path and improving heat dissipation efficiency while avoiding the energy waste associated with traditional fixed heat dissipation structures. The temperature probe is directly installed at key points inside the main body of the low-voltage distribution cabinet, and the temperature data is transmitted in real-time to the LCD display host via the signal processing module and wireless transmission module. This enables precise monitoring of the operating status of the low-voltage distribution cabinet, timely detection of abnormal temperatures, and effective prevention of the escalation of electrical equipment failures and safety accidents.

Description

Technical Field

[0001] This utility model relates to the field of temperature measurement technology for low-voltage distribution cabinets, and specifically to a wireless automatic temperature measurement system for low-voltage distribution cabinets. Background Technology

[0002] Low-voltage distribution cabinets are used in the power supply and distribution process of the tailings sand filtration process production line in the tailings workshop. These cabinets power the equipment and testing devices. Existing low-voltage distribution cabinets for the tailings sand filtration production equipment lack temperature monitoring capabilities. When the power supply lines to the low-voltage distribution cabinets heat up beyond permissible temperatures, it is difficult to detect potential equipment defects in a timely manner, leading to escalation of electrical equipment failures and safety accidents.

[0003] Given the shortcomings of existing technologies, there is an urgent need for a wireless automatic temperature measurement system for low-voltage distribution cabinets to solve the problems existing in the current technology. Utility Model Content

[0004] The purpose of this invention is to provide a wireless automatic temperature measurement system for low-voltage distribution cabinets in order to solve the problems existing in the prior art.

[0005] In order to solve the problems existing in the prior art, the present invention adopts the following technical solution:

[0006] A low-voltage distribution cabinet wireless automatic temperature measurement system includes a low-voltage distribution cabinet body, a wireless temperature measurement unit, and an LCD display host. The low-voltage distribution cabinet body is equipped with moving and stationary contacts, a knife switch, cable joints, and low-voltage cabinet contacts. The wireless temperature measurement unit is installed inside the low-voltage distribution cabinet body and is connected to the LCD display host via a 433MHz wireless communication signal. The wireless temperature measurement unit includes a temperature probe, a signal processing module, a wireless transmission module, and an adaptive heat dissipation component.

[0007] As an improvement to the technical solution of the wireless automatic temperature measurement system for low-voltage distribution cabinets of this utility model, the temperature measuring probe is fixed inside the main body of the low-voltage distribution cabinet at the moving and stationary contacts, knife switch, cable joint, and low-voltage cabinet contacts, and the temperature measuring probe is electrically connected to the signal processing module through a wire; the signal processing module is fixed to one side of the inner wall of the main body of the low-voltage distribution cabinet and is fixedly connected to the main body of the low-voltage distribution cabinet by bolts; the wireless transmitting module is electrically connected to the signal processing module, and the wireless transmitting module is fixed to the top of the signal processing module by a buckle; the adaptive heat dissipation component is fixed to the rear end of the signal processing module, and the adaptive heat dissipation component includes a thermal expansion plate, an elastic push rod, an air guide plate, and a miniature fan.

[0008] As an improvement to the technical solution of the wireless automatic temperature measurement system for low-voltage distribution cabinet of this utility model, the thermal expansion plate is fixed to the middle of the rear end of the signal processing module, and the thermal expansion plate is fixedly connected to the signal processing module through a metal bracket; one end of the elastic push rod contacts the rear end of the thermal expansion plate, and the other end is connected to the front end of the air guide plate, and the elastic push rod is movably connected to the air guide plate through a hinge; the air guide plate is located in front of the miniature fan, and the air guide plate is slidably connected to the inner wall of the low-voltage distribution cabinet body through a slide rail; the miniature fan is fixed to the rear end of the inner wall of the low-voltage distribution cabinet body, and the miniature fan is electrically connected to the signal processing module through a wire.

[0009] As an improvement to the technical solution of the wireless automatic temperature measurement system for low-voltage distribution cabinet of this utility model, the number of temperature measuring probes is matched with the number of moving and stationary contacts, knife switches, cable joints and low-voltage cabinet contacts inside the main body of the low-voltage distribution cabinet, and the temperature measuring probes are fixed in the corresponding positions with high-temperature resistant adhesive.

[0010] As an improvement to the technical solution of the wireless automatic temperature measurement system for low-voltage distribution cabinets of this utility model, the signal processing module includes a temperature acquisition circuit, an analog-to-digital conversion circuit, and a wireless control circuit. The temperature acquisition circuit is connected to the temperature probe via a wire, the analog-to-digital conversion circuit is electrically connected to the temperature acquisition circuit, and the wireless control circuit is electrically connected to the analog-to-digital conversion circuit.

[0011] As an improvement to the technical solution of the wireless automatic temperature measurement system for low-voltage distribution cabinets of this utility model, the thermal expansion plate is made of bimetallic material, and the thermal expansion plate expands backward when the temperature rises, and the expansion amount of the thermal expansion plate is linearly related to the temperature change.

[0012] As an improvement to the technical solution of the wireless automatic temperature measurement system for low-voltage distribution cabinet of this utility model, the air guide plate has an arc-shaped structure and a number of ventilation holes are evenly opened on the surface of the air guide plate. The diameter of the ventilation holes is 2mm to 5mm. The air guide plate moves back and forth in the horizontal direction through the slide rail.

[0013] As an improvement to the technical solution of the wireless automatic temperature measurement system for low-voltage distribution cabinet of this utility model, the elastic push rod is made of spring steel, and the initial length of the elastic push rod is 10cm to 15cm, and the maximum elongation of the elastic push rod is 5cm to 8cm.

[0014] As an improvement to the technical solution of the wireless automatic temperature measurement system for low-voltage distribution cabinets of this utility model, the rotation speed of the micro fan is positively correlated with the temperature of the signal processing module, and the rotation speed range of the micro fan is 1000rpm to 3000rpm.

[0015] The beneficial effects of this utility model are:

[0016] 1. By setting up an adaptive heat dissipation component consisting of a thermal expansion plate, an elastic push rod, an air guide plate and a micro fan, the position of the air guide plate is automatically adjusted according to the temperature change of the signal processing module, optimizing the heat dissipation airflow path, improving heat dissipation efficiency while avoiding the energy waste problem caused by traditional fixed heat dissipation structures.

[0017] 2. The temperature probe is directly installed at key points inside the low-voltage distribution cabinet and transmits temperature data to the LCD display host in real time through the signal processing module and wireless transmission module. This enables precise monitoring of the operating status of the low-voltage distribution cabinet, timely detection of abnormal temperature conditions, and effective prevention of the spread of electrical equipment failures and safety accidents.

[0018] 3. The signal processing module adopts an integrated circuit design, which integrates the temperature acquisition circuit, analog-to-digital conversion circuit and wireless control circuit into one, simplifying the circuit structure, improving the stability and reliability of the system, and facilitating installation and maintenance. Attached Figure Description

[0019] Figure 1 This is a system diagram of the present invention. Detailed Implementation

[0020] To make the invention objective, technical solution and beneficial effects of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments.

[0021] like Figure 1 As shown, a low-voltage distribution cabinet wireless automatic temperature measurement system includes a low-voltage distribution cabinet body, a wireless temperature measurement unit, and an LCD display host. The low-voltage distribution cabinet body is equipped with moving and stationary contacts, a knife switch, cable joints, and low-voltage cabinet contacts. The wireless temperature measurement unit is installed inside the low-voltage distribution cabinet body and is connected to the LCD display host via a 433MHz wireless communication signal. The wireless temperature measurement unit includes a temperature probe, a signal processing module, a wireless transmission module, and an adaptive heat dissipation component.

[0022] In this invention, a temperature probe monitors the temperature of key nodes inside the low-voltage distribution cabinet in real time and transmits the temperature signal to a signal processing module. The temperature acquisition circuit in the signal processing module receives the temperature signal and transmits it to an analog-to-digital converter (ADC). The ADC converts the analog signal into a digital signal and transmits it to a wireless control circuit. The wireless control circuit then sends the temperature data to the LCD display host via a wireless transmission module. When the signal processing module's own temperature rises, the thermal expansion plate expands due to heat, pushing the elastic push rod backward. The elastic push rod causes the air guide plate to move backward along the slide rail, reducing the distance between the air guide plate and the micro fan. The airflow from the micro fan flows through the ventilation holes on the air guide plate and concentrates on the signal processing module, thereby enhancing the heat dissipation effect on the signal processing module. As the temperature changes, the expansion amount of the thermal expansion plate changes accordingly, and the position of the air guide plate adjusts accordingly, forming an adaptive heat dissipation regulation mechanism.

[0023] In some embodiments of this utility model, the temperature probe is fixed inside the low-voltage distribution cabinet body at the moving and stationary contacts, knife switch, cable joint, and low-voltage cabinet contacts, and the temperature probe is electrically connected to the signal processing module via a wire; the signal processing module is fixed to one side of the inner wall of the low-voltage distribution cabinet body and is fixedly connected to the low-voltage distribution cabinet body by bolts; the wireless transmission module is electrically connected to the signal processing module, and the wireless transmission module is fixed to the top of the signal processing module by a buckle; the adaptive heat dissipation component is fixed to the rear end of the signal processing module, and the adaptive heat dissipation component includes a thermal expansion plate, an elastic push rod, an air guide plate, and a miniature fan.

[0024] Temperature probes are installed on critical components such as moving contacts, stationary contacts, knife switches, and cable joints to accurately measure the temperature of these heat-prone parts. The temperature probes are connected to a signal processing module via wires, which then transmits the temperature data in real time via a wireless transmission module, facilitating timely monitoring of equipment operating status.

[0025] The adaptive heat dissipation component automatically adjusts its heat dissipation intensity according to temperature changes, effectively reducing equipment temperature and extending equipment lifespan. Real-time monitoring and heat dissipation adjustment effectively prevent equipment failures or fires caused by overheating. The signal processing module is bolted to the inner wall of the low-voltage distribution cabinet, and the wireless transmission module is secured to the top of the signal processing module with clips, ensuring a stable structure and reliable connection.

[0026] The wireless transmission module can transmit temperature data to a remote monitoring system, enabling remote monitoring of the low-voltage distribution cabinet. Furthermore, when the temperature exceeds a preset threshold, the system can issue a timely warning, reminding staff to take appropriate measures.

[0027] In some embodiments of this utility model, the thermal expansion plate is fixed to the middle of the rear end of the signal processing module, and the thermal expansion plate is fixedly connected to the signal processing module through a metal bracket; one end of the elastic push rod contacts the rear end of the thermal expansion plate, and the other end is connected to the front end of the air guide plate, and the elastic push rod is movably connected to the air guide plate through a hinge; the air guide plate is located in front of the micro fan, and the air guide plate is slidably connected to the inner wall of the low-voltage distribution cabinet body through a slide rail; the micro fan is fixed to the rear end of the inner wall of the low-voltage distribution cabinet body, and the micro fan is electrically connected to the signal processing module through a wire.

[0028] In detail, the thermal expansion plate automatically expands or contracts according to temperature changes, pushing the elastic push rod to move, thereby changing the position of the air guide plate and adjusting the airflow direction and volume to achieve automatic heat dissipation regulation. The miniature fan is electrically connected to the signal processing module via wires to ensure the stable operation of the heat dissipation components, improve heat dissipation efficiency, and effectively reduce the equipment temperature. All components are connected by metal brackets, hinges, and slide rails, resulting in a compact structure, reasonable layout, small footprint, and easy installation and integration.

[0029] In some embodiments of this utility model, the number of temperature probes is matched with the number of moving and stationary contacts, knife switches, cable ties, and low-voltage cabinet contacts inside the main body of the low-voltage distribution cabinet, and the temperature probes are fixed to the corresponding positions with high-temperature resistant adhesive.

[0030] The number of temperature probes is matched to the number of critical components, ensuring accurate and comprehensive monitoring of every heat-prone area. High-temperature resistant adhesive is used for fixation, enabling the probes to operate stably even in high-temperature environments, preventing them from detaching and guaranteeing measurement reliability. Specifically designed for critical components such as moving contacts, stationary contacts, and knife switches, this system effectively prevents malfunctions caused by overheating in these areas, enhancing equipment operational safety.

[0031] In some embodiments of this utility model, the signal processing module includes a temperature acquisition circuit, an analog-to-digital conversion circuit, and a wireless control circuit. The temperature acquisition circuit is connected to the temperature probe via a wire, the analog-to-digital conversion circuit is electrically connected to the temperature acquisition circuit, and the wireless control circuit is electrically connected to the analog-to-digital conversion circuit.

[0032] The temperature acquisition circuit connects to the temperature probe, enabling precise acquisition of temperature data from key areas. The analog-to-digital converter transforms the acquired analog temperature signal into a digital signal, facilitating subsequent processing and transmission. The wireless control circuit transmits the digital signal wirelessly, enabling remote monitoring and data sharing. The circuit modules are connected sequentially, resulting in high integration and improved system stability and reliability, while also facilitating maintenance and upgrades.

[0033] In some embodiments of this utility model, the thermosensitive expansion sheet is made of bimetallic material, and the thermosensitive expansion sheet expands backward when the temperature rises, and the expansion amount of the thermosensitive expansion sheet is linearly related to the temperature change.

[0034] Thermistor expansion plates made of bimetallic materials are highly responsive to temperature changes and can quickly sense temperature increases. Because the expansion is linearly related to temperature changes, it facilitates precise calculation and control of temperature variations, enabling accurate temperature regulation. Utilizing the physical properties of the material to achieve both temperature sensing and mechanical action eliminates the need for complex circuitry, resulting in a simple structure and high reliability.

[0035] In some embodiments of this utility model, the air guide plate has an arc-shaped structure, and a number of ventilation holes are evenly opened on the surface of the air guide plate. The diameter of the ventilation holes is 2mm to 5mm. The air guide plate moves back and forth in the horizontal direction via a slide rail.

[0036] The curved air guide plate effectively directs airflow, ensuring even air distribution and improving heat dissipation efficiency. Evenly distributed ventilation holes (2mm to 5mm in diameter) further optimize airflow paths, enhancing air circulation and improving heat dissipation. The air guide plate moves horizontally back and forth via a sliding rail, allowing for flexible position adjustment to suit different heat dissipation scenarios. The curved structure and ventilation hole design achieve efficient heat dissipation within a limited space without adding extra volume. The sliding rail movement is simple and reliable, facilitating maintenance and adjustment.

[0037] In some embodiments of this utility model, the elastic push rod is made of spring steel, and the initial length of the elastic push rod is 10cm to 15cm, and the maximum elongation of the elastic push rod is 5cm to 8cm.

[0038] In some embodiments of this invention, the rotational speed of the micro fan is positively correlated with the temperature of the signal processing module, and the rotational speed range of the micro fan is 1000 rpm to 3000 rpm.

[0039] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

Claims

1. A wireless automatic temperature measurement system for low-voltage distribution cabinets, characterized in that, The device includes a low-voltage distribution cabinet body, a wireless temperature measurement unit, and an LCD display host. The low-voltage distribution cabinet body is equipped with moving and stationary contacts, a knife switch, cable joints, and low-voltage cabinet contacts. The wireless temperature measurement unit is installed inside the low-voltage distribution cabinet body and is connected to the LCD display host via a 433MHz wireless communication signal. The wireless temperature measurement unit includes a temperature probe, a signal processing module, a wireless transmission module, and an adaptive heat dissipation component. The temperature probe is fixed inside the low-voltage distribution cabinet body at the moving and stationary contacts, knife switch, cable joint, and low-voltage cabinet contacts, and is electrically connected to the signal processing module via a wire; the signal processing module is fixed to one side of the inner wall of the low-voltage distribution cabinet body and is fixedly connected to the low-voltage distribution cabinet body by bolts; the wireless transmission module is electrically connected to the signal processing module, and the wireless transmission module is fixed to the top of the signal processing module by a buckle; the adaptive heat dissipation component is fixed to the rear end of the signal processing module, and the adaptive heat dissipation component includes a thermal expansion plate, an elastic push rod, an air guide plate, and a miniature fan.

2. The low-voltage distribution cabinet wireless automatic temperature measurement system according to claim 1, characterized in that, The thermal expansion plate is fixed to the middle of the rear end of the signal processing module, and is fixedly connected to the signal processing module through a metal bracket; one end of the elastic push rod contacts the rear end of the thermal expansion plate, and the other end is connected to the front end of the air guide plate, and the elastic push rod is movably connected to the air guide plate through a hinge; the air guide plate is located in front of the miniature fan, and is slidably connected to the inner wall of the low-voltage distribution cabinet body through a slide rail; the miniature fan is fixed to the rear end of the inner wall of the low-voltage distribution cabinet body, and is electrically connected to the signal processing module through a wire.

3. The low-voltage distribution cabinet wireless automatic temperature measurement system according to claim 1, characterized in that, The number of temperature probes is matched with the number of moving and stationary contacts, knife switches, cable joints, and low-voltage cabinet contacts inside the low-voltage distribution cabinet body, and the temperature probes are fixed in the corresponding positions with high-temperature resistant adhesive.

4. The low-voltage distribution cabinet wireless automatic temperature measurement system according to claim 1, characterized in that, The signal processing module includes a temperature acquisition circuit, an analog-to-digital conversion circuit, and a wireless control circuit. The temperature acquisition circuit is connected to the temperature probe via a wire, the analog-to-digital conversion circuit is electrically connected to the temperature acquisition circuit, and the wireless control circuit is electrically connected to the analog-to-digital conversion circuit.

5. The low-voltage distribution cabinet wireless automatic temperature measurement system according to claim 1, characterized in that, The thermosensitive expansion sheet is made of bimetallic material, and it expands backward when the temperature rises. The expansion amount of the thermosensitive expansion sheet is linearly related to the temperature change.

6. The low-voltage distribution cabinet wireless automatic temperature measurement system according to claim 1, characterized in that, The air guide plate has an arc-shaped structure, and several ventilation holes are evenly opened on the surface of the air guide plate. The diameter of the ventilation holes is 2mm to 5mm. The air guide plate moves back and forth in the horizontal direction via a slide rail.

7. The low-voltage distribution cabinet wireless automatic temperature measurement system according to claim 1, characterized in that, The elastic push rod is made of spring steel, and its initial length is 10cm to 15cm, while its maximum elongation is 5cm to 8cm.

8. The low-voltage distribution cabinet wireless automatic temperature measurement system according to claim 1, characterized in that, The rotational speed of the micro fan is positively correlated with the temperature of the signal processing module, and the rotational speed range of the micro fan is 1000 rpm to 3000 rpm.

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