Simulation motor temperature sensor device

Abstract

The utility model discloses a simulation motor temperature sensor device, and relates to the technical field of temperature control. Comprising a temperature type selection switch, a temperature knob and a temperature acquisition and position temperature control module, and the simulation temperature is accurately adjusted in the range of-50 DEG C to 200 DEG C through the temperature knob, so that the precision is improved; the position temperature control module adopts a plurality of independent temperature control units and is combined with 3D modeling simulation and high-precision elements, so that the local temperature is quickly adjusted, and the simulation accuracy is improved; the device supports standardized interface design, simplifies the test process and improves the efficiency; the temperature acquisition module supports two temperature interfaces, so that the cost is reduced. The device can be compatible with multiple temperature types such as PT100, PT1000 and NTC, compatible processing of the three temperature types is achieved, the risk of corresponding relation errors is reduced, and universality and market competitiveness are improved.

Description

Technical Field

[0001] This application belongs to the field of temperature control technology, and in particular relates to a simulated motor temperature sensor device. Background Technology

[0002] In the field of motor design and manufacturing, accurate monitoring and effective management of the motor's internal temperature are crucial for ensuring motor performance, extending its service life, and preventing overheating damage. Therefore, motor manufacturers commonly install temperature sampling devices inside the motor, with temperature resistors being a common industry practice. Specifically, different motor manufacturers may use different types of temperature resistors, such as PT100, PT1000, or NTC, based on their respective technological choices or cost considerations, to achieve accurate motor temperature acquisition and overheat protection. These temperature resistors provide crucial temperature feedback signals to the motor control system through the characteristics of their resistance changing with temperature.

[0003] However, in the actual development, testing, and calibration process, existing technologies face many challenges and shortcomings, including:

[0004] Resistance accuracy issues: Currently, circuit temperature testing and motor temperature calibration often rely on sliding rheostats or resistance boxes to simulate temperature changes. However, the resistance value of sliding rheostats is difficult to control precisely, while resistance boxes, although providing a certain range of resistance values, have significant errors. This lack of resistance accuracy directly leads to a significant deviation between the circuit temperature acquisition values ​​and the theoretical calculation values. Consequently, in applications requiring high-precision temperature data (such as temperature measurement and calibration), the measurement results often do not match the actual situation, affecting the accuracy and reliability of motor performance evaluation.

[0005] The testing environment is complex and time-consuming: If temperature resistance is used directly for actual temperature testing and calibration, it must be carried out in a controlled environment such as a temperature chamber. This not only requires additional equipment investment, but also involves complex operation and long temperature stabilization time. In addition, the temperature value inside the temperature chamber is easily affected by surrounding environmental factors (such as air flow, external heat sources, etc.), which leads to increased measurement errors and further reduces testing efficiency and accuracy.

[0006] Multi-temperature type compatibility challenge: With the diversification of motor application scenarios, higher requirements are placed on the compatibility of motor temperature monitoring systems. If existing equipment needs to be compatible with multiple temperature types such as PT100, PT1000, and NTC, the temperature curve tables for each temperature type must be frequently consulted and matched during actual temperature measurement and calibration. This process is not only cumbersome but also prone to errors, increasing the risk of incorrect correspondence between temperature types and temperature curves, and affecting the accuracy of temperature monitoring and the stability of the system. Utility Model Content

[0007] The purpose of this application is to provide a simulated motor temperature sensor device that can be connected to a temperature acquisition circuit to adjust the motor temperature type and change the specific temperature value, thereby achieving compatible processing for three temperature types.

[0008] To achieve the above objectives, embodiments of this application provide a simulated motor temperature sensor device, comprising:

[0009] The temperature type selection switch module includes switches S1, S2 and S3, which are configured to select the type of motor temperature sensor, including three different temperature types: PT100, PT1000 and NTC. Switches S1, S2 and S3 are used to select the three different temperature types: NTC, PT1000 and PT100, respectively.

[0010] The temperature knob module, connected to the temperature type selection switch module, includes a rotatable knob configured to adjust the simulated temperature value;

[0011] The temperature acquisition module, connected to the temperature type selection switch module, includes positive and negative temperature interfaces for connecting the positive and negative temperature harnesses of the motor controller. It is configured to receive and process temperature signals from the motor controller and has a standardized interface design.

[0012] The position temperature control module, connected to the temperature type selection switch module and the temperature knob module, includes multiple independently controlled temperature control units. Each temperature control unit corresponds to a temperature monitoring point at a different location inside the motor and is configured to simulate temperature changes at different locations inside the motor.

[0013] The method described in the embodiments of this application may also have the following additional technical features:

[0014] Furthermore, the temperature knob module is also configured to adjust the simulated temperature in the range of -50°C to 200°C by rotating the knob.

[0015] Furthermore, the temperature acquisition module is also configured to support two temperature interfaces, allowing for the simultaneous acquisition of two temperature signals.

[0016] Compared with the prior art, the analog motor temperature sensor device provided in this application has the following beneficial technical effects:

[0017] This embodiment of the application uses a temperature knob module to precisely adjust the simulated temperature value within the range of -50℃ to 200℃, avoiding the shortcomings of sliding rheostats or resistance boxes in resistance control, thereby improving the accuracy of temperature simulation. The position temperature control module uses multiple independently controlled temperature control units, each corresponding to a temperature monitoring point at a different location inside the motor. Through 3D modeling simulation and high-precision semiconductor components, it achieves rapid adjustment and simulation of local temperature, further improving the accuracy and realism of temperature simulation.

[0018] This application embodiment supports a standardized interface design, which facilitates connection with external devices such as motor controllers. It eliminates the need for actual temperature testing in controlled environments such as temperature chambers, thereby simplifying the testing process and shortening the testing time. The temperature acquisition module supports two temperature interfaces, which can acquire two temperature signals simultaneously, improving testing efficiency and reducing testing costs.

[0019] This application embodiment uses a temperature type selection switch module to conveniently select multiple temperature types such as PT100, PT1000, and NTC, eliminating the need to frequently consult and match temperature curve tables for each temperature type, thus reducing the risk of incorrect correspondence between temperature type and temperature curve. This multi-temperature type compatibility allows the device to be adapted to the technical choices and cost considerations of different motor manufacturers, improving the device's versatility and market competitiveness. Attached Figure Description

[0020] Figure 1 A structural block diagram of an analog motor temperature sensor device according to an embodiment of this application is shown.

[0021] Explanation of reference numerals in the attached diagram: 1. Temperature type selection switch module; 2. Temperature knob module; 3. Temperature acquisition module; 4. Position temperature control module. Detailed Implementation

[0022] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, it should be noted that, for ease of description, only the parts relevant to this application are shown in the accompanying drawings, not the entire structure. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this application.

[0023] The terms “comprising” and “having”, and any variations thereof, used in this application are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the steps or units listed, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to such process, method, product, or apparatus.

[0024] In this application, the reference to "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a mutually exclusive, independent, or alternative embodiment. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described in this application can be combined with other embodiments.

[0025] The PT100 is a platinum resistance temperature sensor. Platinum resistance temperature sensors are thermistors made of platinum whose resistance changes linearly with temperature, reaching 100 ohms at 0°C. The PT100 sensor features high accuracy and stability, making it suitable for applications requiring precise temperature measurement. Its measurement range is typically wide, covering temperatures from -200°C to 850°C. The near-linear resistance-temperature characteristic curve of the PT100 facilitates temperature conversion and calculation.

[0026] The PT1000 is also a platinum resistance temperature sensor, similar to the PT100, but its resistance is 1000 ohms at 0°C. Because of its higher resistance, the PT1000 exhibits a greater change in resistance under the same temperature variation, thus providing higher sensitivity. It also boasts high accuracy and stability, making it suitable for applications requiring high temperature measurement precision. Like the PT100, the PT1000's resistance-temperature characteristic curve is nearly linear.

[0027] An NTC (Negative Temperature Coefficient) thermistor is a type of thermistor whose resistance decreases as temperature increases. NTC thermistors are highly sensitive to temperature changes and respond quickly to them. Their measurement range is typically wide, covering a range from extremely low to very high temperatures. The resistance-temperature characteristic curve of an NTC is non-linear, requiring appropriate linearization or the use of lookup tables to obtain accurate temperature values ​​during application.

[0028] like Figure 1 As shown, this application embodiment provides a simulated motor temperature sensor device, including:

[0029] Temperature type selection switch module 1 is one of the core control units of the analog motor temperature sensor device. It contains three independent switches: S1, S2, and S3. These three switches are designed to operate mutually exclusively, meaning that only one switch can be closed at a time. This is used to select the type of analog motor temperature sensor. Specifically, S1 selects the NTC negative temperature coefficient thermistor, S2 selects the PT1000 platinum resistance temperature sensor, and S3 selects the PT100 platinum resistance temperature sensor. This module allows the device to flexibly adapt to the technology choices and cost considerations of different motor manufacturers. Switching to the desired temperature type can be achieved through simple switching operations, greatly improving the device's versatility and compatibility.

[0030] Temperature knob module 2, closely connected to temperature type selection switch module 1, contains a rotatable knob for adjusting the simulated temperature value. By design, this knob can precisely adjust the simulated temperature within a range of -50℃ to 200℃ to meet the needs of different testing scenarios. This module provides users with an intuitive and easy-to-operate way to set the simulated temperature, making the testing process more flexible and convenient. Simultaneously, its high-precision adjustment capability ensures the accuracy of the simulated temperature, thereby improving the reliability of the test results. The -50℃ to 200℃ range design greatly enhances the flexibility and applicability of the device, enabling users to accurately simulate the temperature state of the motor under different operating environments according to actual testing needs.

[0031] The knob's fine-tuning capability allows users to simulate the motor's operating conditions in extreme low to high temperatures, thus providing a more comprehensive evaluation of the motor's performance. Compared to traditional temperature simulation methods, such as using a sliding rheostat or resistance box, knob adjustment is more intuitive and convenient, reducing operational difficulty and improving testing efficiency. Because knob adjustment offers higher precision and stability, it significantly reduces testing errors caused by inaccurate temperature simulation, thereby improving the reliability of test results.

[0032] Temperature acquisition module 3, also connected to temperature type selection switch module 1, includes positive and negative temperature interfaces for connecting the positive and negative temperature harnesses of the motor controller. This module is configured to receive and process temperature signals from the motor controller and features a standardized interface design to ensure compatibility with different motor controllers. Temperature acquisition module 3 also supports two temperature interfaces, meaning it can acquire two temperature signals simultaneously, further improving testing efficiency and accuracy. This module acts as a bridge between the device and the motor controller, responsible for transmitting analog temperature signals to the motor controller and receiving feedback signals from the controller. Its standardized interface design and support for two temperature interfaces allow the device to easily connect to various motor control systems, achieving accurate temperature acquisition and monitoring.

[0033] By simultaneously acquiring two temperature signals, the device can gain a more comprehensive understanding of the internal temperature distribution of the motor, helping to identify potential temperature anomalies and improving the motor's safety and reliability. The dual-temperature interface design allows the device to process signals from two temperature sensors simultaneously, eliminating the need for multiple tests or interface switching, thus significantly improving testing efficiency. This design also makes the device compatible with a wider range of temperature sensors and motor control systems, enhancing its versatility and market competitiveness.

[0034] The position temperature control module 4 is connected to both the temperature type selection switch module 1 and the temperature knob module 2. It contains multiple independently controlled temperature control units, each corresponding to a temperature monitoring point at a different location inside the motor. This module is configured to simulate temperature changes at different locations inside the motor to comprehensively reflect the temperature distribution during operation. The presence of this module allows the device to more realistically simulate the motor's temperature state during actual operation, providing strong support for accurate motor performance evaluation. By independently controlling each temperature control unit, users can flexibly set temperature values ​​at different locations to simulate various complex operating conditions and fault scenarios.

[0035] These four modules, interconnected through tight electrical connections and signal interactions, together form a complete and efficient analog motor temperature sensor device. The temperature type selection switch module 1, as the core control unit, determines the type of temperature the device simulates; the temperature knob module 2 provides users with an intuitive and easy-to-use way to set the simulated temperature; the temperature acquisition module 3 is responsible for transmitting the simulated temperature signal to the motor controller and receiving feedback signals from the controller; and the position temperature control module 4, by simulating temperature changes at different locations inside the motor, provides comprehensive and detailed data support for accurate evaluation of motor performance.

[0036] In summary, this device, through its unique design and modular structure, achieves high-precision simulation and comprehensive testing of motor temperature sensors, and enables compatible processing of three temperature types, providing strong technical support and assurance for the field of motor design and manufacturing.

[0037] It should be noted that, in this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0038] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. An analog motor temperature sensor device, characterized by, The application relates to a temperature type selection switch module (1) comprising switches S1, S2 and S3 configured to select the type of motor temperature sensor, including three different temperature types of PT100, PT1000 and NTC, wherein the switches S1, S2 and S3 are respectively used to select the three different temperature types of NTC, PT1000 and PT100; a temperature knob module (2) connected with the temperature type selection switch module (1) and comprising a rotatable knob configured to adjust the simulated temperature value; a temperature acquisition module (3) connected with the temperature type selection switch module (1) and comprising temperature positive and negative interfaces used to connect the temperature positive and negative wire harness of a motor controller and configured to receive and process the temperature signal from the motor controller and have a standardized interface design; and a position temperature control module (4) connected with the temperature type selection switch module (1) and the temperature knob module (2) and comprising a plurality of independently controlled temperature control units, each of the temperature control units corresponding to a temperature monitoring point at a different position in a motor and configured to simulate the temperature change at the different positions in the motor. The temperature knob module (2) is further configured to adjust the simulated temperature in the range of -50 DEG C to 200 DEG C by rotating the knob. The temperature acquisition module (3) is further configured to support two-way temperature interfaces and can simultaneously acquire two-way temperature signals. ​ ​ 2. The analog motor temperature sensor apparatus of claim 1, wherein, ​ 3. The analog motor temperature sensor apparatus of claim 1, wherein, ​

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