Mutual inductor temperature rise on-line monitoring alarm device

Abstract

The utility model discloses a mutual inductor temperature rise on-line monitoring alarm device, which belongs to the field of mutual inductor monitoring and comprises a base, a telescopic adjusting mechanism, a temperature sensor, a microprocessor, a temperature rise monitoring alarm mechanism and an infrared remote control device. The telescopic adjusting mechanism is installed on one side of the base, the temperature sensor is installed at the end of the telescopic adjusting mechanism, the temperature rise monitoring and alarming mechanism and the microprocessor are fixedly installed on the base, the infrared remote control device is in communication connection with the microprocessor, the temperature sensor is electrically connected with the microprocessor, and the microprocessor is electrically connected with the infrared remote control device. The temperature rise monitoring and alarming mechanism is connected with the microprocessor, the infrared remote control device can control the temperature setting range or the temperature rise rate of the online monitoring and alarming device through the microprocessor, and the temperature rise monitoring and alarming mechanism is triggered to give an alarm if the temperature setting range or the temperature rise rate is exceeded. According to the utility model, the problem that the temperature rise of the mutual inductor cannot be monitored and pre-warned in the prior art can be solved.

Description

Technical Field

[0001] The utility model belongs to the field of transformer monitoring, and in particular relates to an online monitoring and alarm device for transformer temperature rise. Background Art

[0002] Temperature-rise testing is an essential step in transformer type testing. Its core objective is to accurately measure and determine whether the transformer's temperature rise during operation has reached a stable state. This directly impacts whether the transformer meets national safety and performance standards. Currently, two approaches are commonly used to determine the stability of transformer temperature rise and monitor the temperature rise of the transformer. One approach continues to use embedded thermocouples for non-conductive components or areas, such as the casing. The other approach uses a temperature gun or infrared imager for high-voltage primary terminal connections or busbar / conductor loops. However, both approaches present practical challenges.

[0003] First, the installation process for thermocouple temperature measurement points is complex and unstable, and they can easily fall out during the experiment due to heating of the transformer casing, resulting in loss of test data and affecting the accuracy and integrity of the test results. Second, for transformers that require high voltages, such as voltage transformers and combination transformers, thermocouples, as sensors of the thermoelectric effect, have limited electrical insulation performance and cannot withstand high voltage environments, posing a risk of breakdown and burnout. Furthermore, not all temperature measurement points are included in the temperature rise stability criterion. While temperature guns and infrared imagers can avoid the safety issues of thermocouples in high-voltage environments, their use requires sufficient electrical safety distance, which can cause the measured data to deviate from the actual temperature. Furthermore, handheld temperature guns or infrared imagers can only perform intermittent measurements, not continuous monitoring, which affects the accuracy and reliability of the test data. Whether measuring with thermocouples or temperature guns / infrared imagers, they only record temperature data and cannot provide real-time temperature warnings. Utility Model Content

[0004] The purpose of the utility model is to provide an online monitoring and alarm device for transformer temperature rise, so as to solve the problem that the prior art cannot monitor and warn the transformer temperature rise.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A temperature rise online monitoring and alarm device for a mutual inductor comprises: a base, a telescopic adjustment mechanism, a temperature sensor, a microprocessor, a temperature rise monitoring and alarm mechanism, and an infrared remote control device;

[0007] The telescopic adjustment mechanism is installed on one side of the base, the temperature sensor is installed at the end of the telescopic adjustment mechanism, the temperature rise monitoring and alarm mechanism and the microprocessor are fixedly installed on the base, the infrared remote control device is communicatively connected to the microprocessor, the temperature sensor is electrically connected to the microprocessor, and the temperature rise monitoring and alarm mechanism is connected to the microprocessor. The infrared remote control device can control the temperature setting range or temperature rise rate of the online monitoring and alarm device through the microprocessor. If the temperature setting range or temperature rise rate is exceeded, the temperature rise monitoring and alarm mechanism is triggered to alarm.

[0008] In some embodiments, the telescopic adjustment mechanism is a universal bamboo tube, one end of which is fixed to the side of the base.

[0009] In some embodiments, the temperature sensor is an infrared temperature sensor, which is electrically connected to the microprocessor through the interior of the universal bamboo tube.

[0010] In some embodiments, three universal bamboo tubes are provided, and all are provided on the same side of the base.

[0011] In some embodiments, the microprocessor is a single chip microcomputer, and the outer wall of the single chip microcomputer is fixed on the base.

[0012] In some embodiments, the temperature rise monitoring alarm mechanism includes a digital display screen and a buzzer, and the digital display screen and the buzzer are installed on a single chip microcomputer.

[0013] In some embodiments, a host computer is further included, which is connected to a single-chip microcomputer, and the single-chip microcomputer transmits the temperature information collected by the temperature sensor to the host computer.

[0014] In some embodiments, the digital display screen is mounted on an edge surface of the microcontroller.

[0015] In some embodiments, the buzzer is mounted beside the digital display screen.

[0016] In some embodiments, the outer wall of the microcontroller can be foldably mounted on the base.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] This utility model provides an online monitoring and alarm device for transformer temperature rise. This device is based on a base and utilizes a universal bamboo tube for its telescopic adjustment mechanism, offering the advantages of telescopic and convenient adjustment of direction and height, capable of meeting the temperature testing requirements of different transformers for direction, angle, height, and distance. Furthermore, the universal bamboo tube is fixed to the side of the base and connected to an infrared temperature sensor, effectively preventing unstable temperature measurement points and inaccurate data. This device uses an infrared remote control device to remotely adjust the temperature setting range or temperature rise rate of a single-chip microcomputer. When the transformer temperature data collected by the infrared temperature sensor exceeds the aforementioned temperature setting range or temperature rise rate, a buzzer alarm is triggered, thereby enabling transformer temperature monitoring and early warning.

[0019] The infrared temperature sensor of the utility model is electrically connected to the single-chip microcomputer, so that temperature data can be collected and processed in real time. The collected temperature data can be displayed on a digital display screen. Once the temperature exceeds a preset safety threshold, a buzzer will immediately sound an alarm to remind the operator to take timely measures to prevent overheating and damage to the equipment, thereby improving the safety and reliability of the equipment.

[0020] The utility model adopts an infrared temperature sensor as a non-contact electrical isolation temperature measurement method, which can solve the problem that thermocouples cannot directly measure the temperature of a high voltage circuit.

[0021] The single-chip microcomputer of the utility model is connected to the host computer, and the single-chip microcomputer transmits the temperature information collected by the temperature sensor to the host computer, thereby realizing long-term storage and remote monitoring of temperature data, and facilitating analysis of the temperature change trend of the mutual inductor. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic structural diagram of an online monitoring and alarm device for temperature rise of a mutual inductor provided in an embodiment of the present utility model;

[0023] Figure 2 A schematic diagram of the system structure of an online monitoring and alarm device for temperature rise of a mutual inductor provided by an embodiment of the utility model;

[0024] In the figure, 1. Base; 2. Universal bamboo tube; 3. Infrared temperature sensor; 4. Single chip microcomputer; 5. Digital display screen; 6. Buzzer; 7. Infrared remote control device. DETAILED DESCRIPTION

[0025] Hereinafter, only certain exemplary embodiments are briefly described, and the described embodiments can be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and description are to be regarded as illustrative rather than restrictive in nature.

[0026] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed or operate in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0027] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.

[0028] In this utility model, unless otherwise specified or limited, the terms "install," "connect," "connected," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0029] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0030] Example 1

[0031] like Figure 1 and Figure 2 As shown, this embodiment provides an online monitoring and alarm device for temperature rise of a mutual inductor, comprising: a base 1, a universal bamboo tube 2, an infrared temperature sensor 3, a single-chip computer 4, a digital display 5, a buzzer 6, and an infrared remote control device 7;

[0032] The universal bamboo tube 2 is installed on one side of the base 1, the infrared temperature sensor 3 is installed at the end of the universal bamboo tube 2, the digital display 5, the buzzer 6 and the single-chip computer 4 are fixedly installed on the base 1, the infrared remote control device 7 is connected to the single-chip computer 4 through infrared light, the infrared temperature sensor 3 is electrically connected to the single-chip computer 4, the digital display 5 and the buzzer 6 are connected to the single-chip computer 4, the infrared remote control device 7 remotely adjusts the temperature setting range or temperature rise rate of the single-chip computer 4, and when the mutual inductor temperature data collected by the infrared temperature sensor 3 exceeds the above-mentioned temperature setting range or temperature rise rate, the buzzer 6 is triggered to alarm.

[0033] The single chip microcomputer 4 selects the STC89C51 single chip microcomputer, and the digital display screen 5 adopts the LCD1602 liquid crystal display screen.

[0034] One end of the universal bamboo tube 2 is fixed to the side of the base 1, and the infrared temperature sensor 3 is electrically connected to the single chip computer 4 through the internal of the universal bamboo tube 2. Three universal bamboo tubes 2 are provided, and are all provided on the same side of the base 1.

[0035] The outer wall of the single chip microcomputer 4 is fixed on the base 1. The digital display screen 5 and the buzzer 6 are installed on the single chip microcomputer 4.

[0036] The online monitoring alarm device provided in this embodiment also includes a host computer. The single-chip microcomputer 4 is connected to the host computer and the electrical automation system via serial circuit communication. The single-chip microcomputer 4 transmits the temperature information collected by the infrared temperature sensor 3 to the host computer.

[0037] The digital display screen 5 is installed on the edge surface of the single chip computer 4. The buzzer 6 is installed on the side of the digital display screen 5.

[0038] This embodiment is based on the base 1, and uses the universal bamboo tube 2 to fix the infrared temperature sensor 3 and the single-chip computer 4 at both ends, effectively avoiding the phenomenon of unstable temperature measurement points and inaccurate data. In addition, the universal bamboo tube 2 has the characteristics of being retractable and convenient to adjust the direction and height, which can meet the temperature test requirements of different mutual inductors for direction, angle, height and distance; this embodiment uses the infrared temperature sensor 3 as a non-contact electrical isolation temperature measurement method, which can solve the problem that the thermocouple cannot directly measure the temperature of the high-voltage circuit; in general, the monitoring and alarm device provided by this embodiment can greatly shorten the temperature measurement distance on the high-voltage circuit side, improve the temperature measurement accuracy and data reliability; in addition, this embodiment can set the maximum temperature range and temperature rise rate of the single-chip computer 4 as needed during temperature warning through the infrared remote control device 7, and upload the data to the upper computer automation system to improve the safety of the temperature rise test. In summary, the online monitoring and alarm device provided by this embodiment is simple to use, has a wider range of applications, and is more accurate.

[0039] When the temperature of the transformer is monitored in real time in this embodiment, a buzzer alarm sounds to inform the test personnel when the measured temperature reaches the set temperature. The entire process can be remotely controlled by the infrared remote control device 7, ensuring the safety of the personnel and improving the accuracy of the test and the efficiency of the personnel.

[0040] Example 2

[0041] This embodiment provides a transformer temperature rise online monitoring and alarm device, comprising: a base 1, a telescopic adjustment mechanism, a temperature sensor, a microprocessor, a temperature rise monitoring and alarm mechanism, and an infrared remote control device 7;

[0042] The telescopic adjustment mechanism is installed on one side of the base 1, the temperature sensor is installed at the end of the telescopic adjustment mechanism, the temperature rise monitoring alarm mechanism and the microprocessor are fixedly installed on the base 1, the infrared remote control device 7 is communicatively connected to the microprocessor, the temperature sensor is electrically connected to the microprocessor, and the temperature rise monitoring alarm mechanism is connected to the microprocessor. The infrared remote control device 7 can adjust the temperature setting range or temperature rise rate of the online monitoring alarm device through the microprocessor. If the temperature setting range or temperature rise rate is exceeded, the temperature rise monitoring alarm mechanism is triggered to alarm.

[0043] The microprocessor adopts a single-chip computer 4, the outer wall of which can be folded and installed on the base 1. A protective shell is installed on the outside of the single-chip computer 4. The bottom end of the protective shell is connected to the base 1 to form a closed space, which can ensure that the single-chip computer 4 is not damaged.

[0044] The online monitoring and alarm device provided in this embodiment can flexibly adjust the direction and angle of the temperature sensor through a telescopic adjustment mechanism, so that it can accurately monitor the temperature changes of the mutual inductor, thereby improving the accuracy and adaptability of monitoring. This design allows the device to adapt to mutual inductors of different positions and shapes, increasing its practicality. The electrical connection between the temperature sensor and the microprocessor enables temperature data to be collected and processed in real time. Once the temperature exceeds the preset safety threshold, the temperature rise monitoring and alarm mechanism will immediately sound an alarm to remind the operator to take timely measures to prevent the equipment from overheating and damage, thereby improving the safety and reliability of the equipment. The communication connection between the infrared remote control device and the microprocessor allows the operator to remotely control the device within a certain distance, such as adjusting the temperature setting range and temperature rise rate of the microprocessor, and viewing temperature data, etc., which improves the convenience and flexibility of operation.

[0045] It is known from common technical knowledge that the present invention can be implemented by other embodiments that do not deviate from its spirit or essential features. Therefore, the embodiments disclosed above are merely illustrative in all respects and are not exclusive. All modifications within the scope of the present invention or equivalent to the scope of the present invention are included in the present invention.

Claims

1. A transformer temperature rise online monitoring and alarm device, characterized in that: include: Base (1), telescopic adjustment mechanism, temperature sensor, microprocessor, temperature rise monitoring alarm mechanism and infrared remote control device (7); The telescopic adjustment mechanism is installed on one side of the base (1), the temperature sensor is installed at the end of the telescopic adjustment mechanism, the temperature rise monitoring alarm mechanism and the microprocessor are fixedly installed on the base (1), the infrared remote control device (7) is communicatively connected to the microprocessor, the temperature sensor is electrically connected to the microprocessor, and the temperature rise monitoring alarm mechanism is connected to the microprocessor. The infrared remote control device (7) can control the temperature setting range or temperature rise rate of the online monitoring alarm device through the microprocessor, and the temperature rise monitoring alarm mechanism is triggered to alarm when the temperature setting range or temperature rise rate is exceeded.

2. The online monitoring and alarm device for transformer temperature rise according to claim 1, characterized in that: The telescopic adjustment mechanism is a universal bamboo tube (2), one end of which is fixed to the side of the base (1).

3. The online monitoring and alarm device for temperature rise of a mutual inductor according to claim 2, characterized in that: The temperature sensor is an infrared temperature sensor (3), and the infrared temperature sensor (3) is electrically connected to the microprocessor through the interior of the universal bamboo tube (2).

4. The online monitoring and alarm device for transformer temperature rise according to claim 2, characterized in that: Three universal bamboo tubes (2) are provided, and are all provided on the same side of the base (1).

5. The online monitoring and alarm device for transformer temperature rise according to claim 1, characterized in that: The microprocessor is a single-chip computer (4), and the outer wall of the single-chip computer (4) is fixed on the base (1).

6. The online monitoring and alarm device for transformer temperature rise according to claim 5, characterized in that: The temperature rise monitoring alarm mechanism comprises a digital display screen (5) and a buzzer (6), and the digital display screen (5) and the buzzer (6) are mounted on the single chip computer (4).

7. The online monitoring and alarm device for transformer temperature rise according to claim 5, characterized in that: It also includes a host computer, which is connected to the single-chip computer (4).

8. The online monitoring and alarm device for transformer temperature rise according to claim 6, characterized in that: The digital display screen (5) is mounted on the edge surface of the single chip computer (4).

9. The online monitoring and alarm device for transformer temperature rise according to claim 6, characterized in that: The buzzer (6) is installed beside the digital display screen (5).

10. The on-line monitoring and alarm device for transformer temperature rise according to claim 5, characterized in that: The outer wall of the single chip computer (4) can be foldably mounted on the base (1).

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