Temperature sensor performance detection device and detection method

Abstract

The present application relates to temperature sensor performance detection technical field, especially in kind of temperature sensor performance detection device and detection method, including outer box subassembly;Inner box subassembly is located in the outer box subassembly in;Constant temperature component, be located in the inner box subassembly, the inside of constant temperature component has a constant temperature space for temperature sensor detection, constant temperature component presents the polyhedral structure;Temperature measuring part is measured temperature end and is located in the constant temperature space, the number of temperature measuring part is set with several, every face of constant temperature component of polyhedral structure is provided with at least one temperature measuring part;Temperature adjusting component is located in the outer box subassembly;Second heat conduction part, one end is connected with the temperature outlet end of temperature adjusting component, the other end is connected with constant temperature component;The present application can effectively eliminate temperature gradient, avoid the detection deviation caused by environmental temperature fluctuation, to improve the accuracy and reliability of temperature sensor performance detection significantly.

Description

Technical Field

[0001] This invention relates to the field of temperature sensor performance testing technology, and in particular to a temperature sensor performance testing device and testing method. Background Technology

[0002] Existing temperature sensor performance testing devices typically lack effective temperature control. When testing temperature sensors, these devices often fail to ensure the uniformity and stability of the ambient temperature. Due to temperature gradients, different parts of the sensor experience varying temperatures, leading to measurement deviations. Furthermore, fluctuations in ambient temperature further affect the accuracy of the test. This unstable temperature environment makes it difficult for the test results to accurately reflect the sensor's true performance, thus reducing the reliability and practicality of the testing device. To address these problems, this invention proposes a temperature sensor performance testing device and method. Summary of the Invention

[0003] To achieve the above objectives, the present invention provides a temperature sensor performance testing device, comprising:

[0004] Outer casing components;

[0005] The inner casing assembly is disposed within the outer casing assembly;

[0006] A temperature control component is disposed inside the inner box assembly. The interior of the temperature control component has a temperature-controlled space for temperature sensor detection. The temperature control component has a polygonal structure.

[0007] A temperature measuring unit, the temperature measuring end of which is located in the constant temperature space, and a number of temperature measuring units are provided. At least one temperature measuring unit is provided on each face of the constant temperature component, which has a polygonal structure.

[0008] Temperature regulating components are disposed within the outer casing assembly;

[0009] The second heat-conducting part has one end connected to the temperature outlet end of the temperature regulating component and the other end connected to the constant temperature component. The number of the second heat-conducting parts is set to a certain extent. Each surface of the constant temperature component is connected to at least one second heat-conducting part. The axial heat conduction distance of the several second heat-conducting parts to each surface of the constant temperature component is the same.

[0010] Optionally, the second heat-conducting part includes a heat-conducting body and a heat-insulating sleeve covering the heat-conducting body, wherein the second heat-conducting part has a rod-shaped structure, a wave-shaped structure, or a spiral structure.

[0011] Optionally, the temperature regulating component includes a cooling section and a heating section. The cooling section and the heating section are detachably disposed at the bottom of the outer casing assembly. The temperature outlet ends of the cooling section and the heating section are both connected to a first heat-conducting section. The free ends of the two first heat-conducting sections are both connected to a temperature mixing section. The temperature mixing section is connected to a second heat-conducting section.

[0012] Optionally, a thermal bridge connecting component is also included. The thermal bridge connecting component is disposed on the second heat-conducting part. The thermal bridge connecting component includes a third heat-conducting part, which is movably inserted into the second heat-conducting part and divides the second heat-conducting part into a first segment and a second segment that are separated from each other. The third heat-conducting part is used to connect the thermal bridge between the first segment and the second segment. The third heat-conducting part is connected to the driving end of the first driver. The first driver is fixedly disposed on the inner side wall of the sealing box. The sealing box is disposed outside the second heat-conducting part for sealing the first segment and the second segment with the third heat-conducting part.

[0013] Optionally, each surface of the constant temperature component is connected to a plurality of the second heat-conducting parts, and the plurality of the second heat-conducting parts are arranged in a matrix or in a plurality of concentric circles.

[0014] Optionally, the outer casing assembly includes an outer casing body, an outer casing cover disposed above the outer casing body for sealing the opening of the outer casing body, and a height adjustment component connecting the outer casing body and the outer casing cover. The height adjustment component includes a support plate fixed on the outer casing body and a cylinder disposed on the support plate. The driving end of the cylinder is connected to the upper surface of the outer casing cover.

[0015] Optionally, the inner box assembly includes an inner box body fixedly disposed within the outer box body, and an inner box cover fixedly disposed on the outer box cover. The inner box cover is matched with the inner box body, and the inner box cover and the inner box body enclose a sealed space surrounding the thermostatic component. The inner box body and the inner box cover are both made of materials that are not good conductors of heat.

[0016] Optionally, the temperature control assembly includes a temperature control chamber fixed inside the inner chamber and a temperature control chamber cover fixed on the inner chamber cover. The temperature control chamber cover is matched with the temperature control chamber, and the temperature control chamber cover and the temperature control chamber enclose the temperature control space. Both the temperature control chamber cover and the temperature control chamber are made of materials that are good conductors of heat.

[0017] Optionally, the inner box assembly further includes a telescopic component, which includes a telescopic rod fixedly connected to the inner box cover. The telescopic rod is movably inserted into a telescopic cylinder, which is fixedly installed in a mounting groove on the inner box body. A telescopic spring is wound around the telescopic rod, and the two ends of the telescopic spring are respectively fixedly connected to the side wall of the telescopic rod and the outer side wall of the telescopic cylinder.

[0018] To achieve the above objectives, the present invention also provides a method for testing the performance of a temperature sensor. The method utilizes the aforementioned temperature sensor performance testing device to test the temperature sensor by creating a constant temperature environment. The testing method includes the following steps:

[0019] S1: Set the preset detection temperature;

[0020] S2: Control the operation of the cooling and heating units. The heat generated by the two is conducted to the temperature mixing unit through the first heat conduction unit and then mixed to reach the preset detection temperature.

[0021] S3: The preset detection temperature mentioned in S2 is synchronously conducted to all surfaces of the constant temperature component through several second heat-conducting parts, so as to synchronously heat up all surfaces of the constant temperature component.

[0022] S4: During the heating process, when the temperature measuring unit detects that the temperature on one side of the constant temperature component is abnormally higher than that on other sides, the first driver will be activated to control the third heat conduction part to move upward, so as to reduce the thermal bridge area connecting the first segment and the second segment, reduce heat transfer, or disconnect the thermal bridge between the first segment and the second segment, and disconnect heat transfer.

[0023] The beneficial effects of this invention are as follows:

[0024] This invention, by setting up a constant temperature component with a polygonal structure, temperature measuring parts evenly distributed on each surface, multiple second heat conducting parts with consistent axial heat conduction distances, and a matching temperature regulating component, can ensure the uniformity and stability of temperature within the constant temperature space, effectively eliminate temperature gradients, and avoid detection deviations caused by ambient temperature fluctuations, thereby significantly improving the accuracy and reliability of temperature sensor performance detection. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the external three-dimensional structure of the temperature sensor performance testing device of the present invention;

[0026] Figure 2 This is a partial cross-sectional structural diagram of the temperature sensor performance testing device of the present invention;

[0027] Figure 3 This invention relates to a temperature sensor performance testing device. Figure 2 Enlarged schematic diagram of structure A in the middle;

[0028] Figure 4 This invention relates to a temperature sensor performance testing device. Figure 2 Enlarged schematic diagram of the B-structure;

[0029] Figure 5 This invention relates to a temperature sensor performance testing device. Figure 4Schematic diagram of the structure of the thermal bridge connection component;

[0030] Figure 6 This is a flowchart of the temperature sensor performance testing method of the present invention.

[0031] Explanation of reference numerals in the attached figures

[0032] 1. Outer casing; 2. Outer casing cover; 3. Height adjustment component; 4. Inner casing; 5. Inner casing cover; 6. Constant temperature chamber; 7. Constant temperature chamber cover; 8. Telescopic component; 81. Telescopic rod; 82. Telescopic cylinder; 83. Telescopic spring; 9. Temperature measuring section; 10. Cooling section; 11. Heating section; 12. First heat conduction section; 13. Temperature mixing section; 14. Second heat conduction section; 15. Thermal bridge connection component; 151. Third heat conduction section; 152. First actuator; 153. Sealed box. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions in the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without inventive effort are within the scope of protection of this invention. Unless otherwise defined, the technical or scientific terms used herein should have the ordinary meaning understood by those skilled in the art. The terms "comprising" and similar expressions used herein mean that the element or object preceding the word covers the element or object listed following the word and its equivalents, but do not exclude other elements or objects.

[0034] To address the problems existing in the prior art, embodiments of the present invention provide a temperature sensor performance testing device, such as... Figure 1 and Figure 2 As shown, it includes an outer casing assembly, an inner casing assembly, a constant temperature assembly, a temperature measuring unit 9, a temperature regulating component, and a second heat-conducting unit 14.

[0035] In one embodiment, such as Figure 1 and Figure 2As shown, the outer casing assembly includes an outer casing 1, an outer casing cover 2 located above the outer casing 1 for sealing the opening of the outer casing 1, and a height adjustment component 3 connecting the outer casing 1 and the outer casing cover 2. The height adjustment component 3 includes a support plate fixed on the outer casing 1 and a cylinder located on the support plate. The driving end of the cylinder is connected to the upper surface of the outer casing cover 2. In this embodiment, the relative height between the outer casing cover 2 and the outer casing 1 can be flexibly adjusted through the height adjustment component 3. This allows for quick adjustment of the internal space of the detection device according to different detection requirements and the size of the temperature sensor, ensuring that the temperature sensor can be stably placed inside the detection device. It also facilitates the installation, debugging, and removal of the temperature sensor by the operator, improving the adaptability and ease of operation of the detection device.

[0036] In one embodiment, such as Figure 1 and Figure 2 As shown, the inner casing assembly is disposed within the outer casing assembly. The inner casing assembly includes an inner casing 4 fixedly disposed within the outer casing 1, and an inner casing cover 5 fixedly disposed on the outer casing cover 2. The inner casing cover 5 is matched with the inner casing 4, and the inner casing cover 5 and the inner casing 4 enclose a sealed space surrounding the thermostatic component. The materials of the inner casing 4 and the inner casing cover 5 are both made of non-thermal conductors. This embodiment uses non-thermal conductors as the materials of the inner casing 4 and the inner casing cover 5, which can effectively reduce the conduction of heat within the inner casing assembly, thereby better maintaining the stability and uniformity of the internal temperature of the thermostatic component, avoiding rapid heat loss or transfer through the inner casing 4 and the inner casing cover 5, thereby improving the accuracy and reliability of temperature sensor performance detection, and ensuring precise control of the temperature environment during the detection process.

[0037] In one embodiment, the inner casing 4 and the inner casing cover 5 can be made of high-performance engineering plastics such as polytetrafluoroethylene (PTFE) or polyimide (PI). These materials not only have good thermal stability and can withstand a wide temperature range, but also have low thermal conductivity, which can effectively reduce heat conduction, thereby better maintaining the stability and uniformity of the internal temperature of the thermostat. In addition, these materials also have good chemical stability and are not prone to reacting with chemical reagents that may be used in the detection process, ensuring the long-term stable operation of the detection device. At the same time, they also have certain mechanical strength and processing performance, which facilitates manufacturing and installation, further improving the reliability and practicality of the detection device.

[0038] In one embodiment, such as Figure 1 and Figure 2As shown, the thermostatic component is located within the inner chamber assembly. The thermostatic component has an internal thermostatic space for temperature sensor detection. The thermostatic component has a polygonal structure. It includes a thermostatic chamber 6 fixed within the inner chamber 4 and a thermostatic chamber cover 7 fixed to the inner chamber cover 5. The thermostatic chamber cover 7 is matched to the thermostatic chamber 6, and the cover and chamber 6 enclose the thermostatic space. Both the cover and chamber 6 are made of materials that are good conductors of heat. This embodiment uses materials that are good conductors of heat for the thermostatic chamber 6 and its cover, ensuring rapid and uniform heat conduction within the thermostatic component, thereby achieving high temperature consistency and rapid response within the thermostatic space. The polygonal structure design allows each surface of the thermostatic component to receive and transfer heat uniformly, further improving the uniformity of temperature distribution and providing a stable and uniform detection environment for the temperature sensor, thus significantly improving the accuracy and reliability of temperature sensor performance detection.

[0039] In one embodiment, the polygonal structure can be a hexahedral structure, such as a cube. This structure possesses symmetry and regularity, facilitating the uniform arrangement of the temperature sensing element 9 and the second heat-conducting element 14 on each face, thereby ensuring uniform heat distribution and rapid conduction within the thermostatic component. Furthermore, the cubic structure is relatively simple to process and manufacture, effectively reducing costs. Simultaneously, its high internal space utilization makes it suitable for accommodating temperature sensors of different shapes and sizes, improving the versatility and adaptability of the detection device.

[0040] In one embodiment, the thermostatic chamber cover 7 and the thermostatic chamber 6 can be made of metal materials such as copper or aluminum alloy. These materials have excellent thermal conductivity, ensuring rapid and uniform heat conduction within the thermostatic components, thereby achieving high temperature consistency and rapid response within the thermostatic space. Furthermore, copper and aluminum alloys also have good machinability and corrosion resistance, facilitating manufacturing and long-term use, further improving the reliability and durability of the testing device.

[0041] In one embodiment, the matching arrangement of the outer casing assembly, the inner casing assembly, and the inner casing assembly is not described in detail here.

[0042] In one embodiment, such as Figure 2As shown, the temperature measuring end of the temperature measuring unit 9 is located within the constant temperature space. Several temperature measuring units 9 are provided, with at least one temperature measuring unit 9 provided on each face of the polygonal constant temperature assembly. This embodiment enables multi-point, all-around real-time monitoring of the temperature within the constant temperature space, ensuring that the ambient temperature of the temperature sensor remains highly consistent and stable across all locations during the detection process. By providing temperature measuring units 9 on each face of the constant temperature assembly, potential local temperature deviations can be detected and corrected promptly, thereby improving the accuracy and reliability of temperature sensor performance testing and providing strong support for temperature sensor performance evaluation.

[0043] In one embodiment, the temperature sensing unit 9 can be a high-precision platinum resistance temperature sensor (such as Pt100 or Pt1000). These sensors have good linearity, high accuracy, and high stability, and can provide accurate and reliable temperature measurements over a wide temperature range. Furthermore, platinum resistance temperature sensors also have good anti-interference capabilities and long-term stability, making them suitable for high-precision temperature monitoring in constant-temperature environments, ensuring the accuracy and reliability of temperature sensor performance testing.

[0044] In one embodiment, the number of temperature sensing units 9 can be six or more, and the specific number can be adjusted according to the structure and size of the thermostat assembly. For example, for a hexahedral thermostat assembly, one temperature sensing unit 9 can be provided on each face to ensure that the temperature in each direction can be accurately monitored. If the thermostat assembly is large or the temperature uniformity requirement is higher, multiple temperature sensing units 9 can be provided on each face to achieve more precise temperature monitoring and control. Increasing the number of temperature sensing units 9 can improve the accuracy and reliability of temperature monitoring, ensure high consistency and stability of temperature within the thermostat space, and thus provide more accurate reference data for the performance testing of the temperature sensor.

[0045] In one embodiment, such as Figure 2 As shown, the temperature regulating component is housed within the outer casing assembly. This embodiment, by placing the temperature regulating component within the outer casing assembly, effectively utilizes the space of the outer casing assembly, achieving a compact structural design and reducing the overall volume and footprint of the detection device. Simultaneously, the temperature regulating component operates within the relatively enclosed outer casing assembly, enabling better control of heat transfer and distribution, avoiding interference from the external environment during the temperature regulation process, and improving the accuracy and stability of temperature regulation. Furthermore, this layout reduces heat loss, improves energy efficiency, and lowers operating costs, thereby enhancing the reliability and economy of the entire temperature sensor performance detection device.

[0046] In one embodiment, the temperature regulating component can be located at the bottom of the outer casing assembly. Positioning the temperature regulating component at the bottom of the outer casing assembly not only makes full use of the internal space and achieves a rational structural layout, but also allows the heat or cold generated by the temperature regulating component to be more evenly transferred throughout the entire outer casing assembly through natural or forced convection, thereby more efficiently regulating the temperature of the thermostat assembly. Furthermore, a bottom-mounted location facilitates the installation and maintenance of the temperature regulating component, and also promotes uniform heat distribution and rapid heat conduction, further improving the accuracy and stability of temperature control.

[0047] In one embodiment, such as Figure 2 and Figure 3 As shown, one end of the second heat-conducting part 14 is connected to the temperature outlet end of the temperature regulating component, and the other end is connected to the constant temperature component. A plurality of second heat-conducting parts 14 are provided, with at least one second heat-conducting part 14 connected to each surface of the constant temperature component. The axial heat conduction distance of the plurality of second heat-conducting parts 14 to each surface of the constant temperature component is consistent. This embodiment ensures that heat is uniformly and rapidly transferred from the temperature regulating component to each surface of the constant temperature component, thereby achieving high temperature consistency and rapid response within the constant temperature space. By providing at least one second heat-conducting part 14 on each surface of the constant temperature component and ensuring that the axial heat conduction distance of these parts is consistent, uneven heat distribution during the transfer process can be effectively avoided, reducing the generation of temperature gradients, and thus improving the accuracy and reliability of temperature sensor performance detection.

[0048] In one embodiment, the number of the second heat-conducting parts 14 can be six or more, and the specific number can be adjusted according to the structure and size of the thermostatic component. For example, for a hexahedral thermostatic component, one second heat-conducting part 14 can be provided on each face to ensure that heat is uniformly transferred in each direction. If the thermostatic component is large or the temperature uniformity requirement is higher, multiple second heat-conducting parts 14 can be provided on each face to achieve finer heat distribution and control. Increasing the number of second heat-conducting parts 14 can improve the efficiency and uniformity of heat transfer, ensure a high degree of temperature consistency and stability within the thermostatic space, thereby providing a more accurate reference environment for the performance testing of the temperature sensor.

[0049] In one embodiment, such as Figure 5As shown, the second heat-conducting part 14 includes a heat-conducting body and a heat-insulating sleeve covering the heat-conducting body; this embodiment can achieve directional and efficient heat conduction and effective isolation. The heat-conducting body ensures that heat is quickly and evenly transferred from the temperature-regulating component to the temperature-controlling component, while the heat-insulating sleeve effectively prevents heat loss during the transfer process and interference with the surrounding environment, improves heat utilization efficiency, enhances the accuracy and stability of temperature control, and reduces energy consumption, thereby improving the reliability and economy of the entire temperature sensor performance detection device.

[0050] In one embodiment, such as Figure 2 As shown, the second heat-conducting part 14 has a rod-shaped, wave-shaped, or spiral structure. Specifically, to ensure that the axial heat conduction distance of the second heat-conducting part 14 reaching each surface is consistent, a symmetrical layout can be adopted when configuring the second heat-conducting part 14. For example, if the temperature-regulating component is a hexahedral structure, the second heat-conducting part 14 can be evenly distributed on each surface, ensuring that the path length from the temperature-regulating component to the corresponding surface of the temperature-regulating component is equal for each heat-conducting part. For wave-shaped or spiral-shaped second heat-conducting parts 14, the parameters of their waves or spirals (such as wavelength, amplitude, pitch, etc.) can be precisely calculated and designed to ensure that the heat conduction path of each heat-conducting part remains consistent in length and shape, thereby achieving uniform heat transfer in all directions and further improving the temperature uniformity and stability within the temperature-regulating space.

[0051] In one embodiment, such as Figure 2 and Figure 4 As shown, the temperature regulating component includes a cooling unit 10 and a heating unit 11. The cooling unit 10 and the heating unit 11 are detachably mounted on the bottom of the outer casing assembly. The temperature outlet ends of both the cooling unit 10 and the heating unit 11 are connected to a first heat-conducting unit 12. The free ends of both first heat-conducting units 12 are connected to a temperature mixing unit 13, which is connected to a second heat-conducting unit 14. This embodiment enables precise temperature control. Through the coordinated operation of the cooling unit 10 and the heating unit 11, the temperature can be quickly adjusted according to detection requirements. The temperature mixing unit 13 mixes the cold and heat sources to the desired preset temperature, which is then uniformly transferred to the constant temperature component via the second heat-conducting unit 14. This design not only improves the flexibility and accuracy of temperature regulation but also facilitates the maintenance and replacement of the cooling unit 10 and the heating unit 11, enhancing the reliability and maintainability of the device.

[0052] In one embodiment, the cooling unit 10 can be a Peltier thermoelectric cooler. Peltier thermoelectric coolers have advantages such as small size, light weight, no moving mechanical parts, high reliability, and long service life. By changing the direction of the current, it can not only cool but also heat, thus achieving bidirectional temperature regulation. Furthermore, thermoelectric coolers have fast cooling and heating speeds, enabling rapid response to temperature changes, making them suitable for detection devices requiring precise temperature control.

[0053] In one embodiment, the heating element 11 can be an electric heating element, such as a resistance heating wire or a heating tube. These electric heating elements have advantages such as fast heating speed, high temperature control accuracy, and rapid response, and can quickly provide a stable heat source according to the detection requirements. By precisely controlling the power and working time of the electric heating element, precise temperature regulation can be achieved, ensuring that the temperature inside the constant temperature component reaches the required preset value. In addition, the electric heating element has a simple structure, is easy to install and maintain, further improving the reliability and practicality of the detection device.

[0054] In one embodiment, the temperature mixing section 13 can be a heat exchanger with a mixing chamber. This heat exchanger is internally designed with multiple staggered baffles or turbulence devices, enabling thorough mixing of hot and cold airflows or liquids from the cooling section 10 and the heating section 11, quickly reaching the desired preset temperature. This design not only improves the efficiency of temperature mixing but also ensures a uniform and stable temperature after mixing, providing a high-quality heat source for subsequent temperature conduction. Furthermore, the heat exchanger has a compact structure, is easy to integrate into the detection device, and possesses good durability and reliability, making it suitable for long-term stable operation.

[0055] Of course, in other embodiments, the temperature mixing section 13 is not limited to a heat exchanger with a mixing chamber. For example, it can also be a heat-conducting rod, which can be made of a material with high thermal conductivity (such as copper or aluminum). One end of the heat-conducting rod is connected to the first heat-conducting section 12 of the cooling section 10 and the heating section 11, and the other end is connected to the second heat-conducting section 14. Through the conduction of the heat-conducting rod, the cold and hot energy generated by the cooling section 10 and the heating section 11 can be mixed and uniformly transferred to the second heat-conducting section 14, and then conducted to the constant temperature component. This design has a simple structure, low cost, and can effectively achieve uniform temperature mixing and conduction. It is suitable for detection devices with relatively low requirements for temperature mixing accuracy or limited space.

[0056] In one embodiment, the first heat-conducting part 12 can be a metal tube with high thermal conductivity, such as a copper or aluminum tube. These metal tubes not only have excellent thermal conductivity, enabling them to quickly transfer the heat or cold generated by the cooling part 10 and the heating part 11 to the temperature mixing part 13, but also possess good mechanical strength and corrosion resistance, ensuring long-term stable operation. Furthermore, the metal tube can be bent and processed as needed to facilitate connection with the cooling part 10, the heating part 11, and the temperature mixing part 13, achieving a compact structural layout and improving the integration and reliability of the entire temperature control system.

[0057] In one embodiment, the connection between the temperature mixing unit 13 and the second heat-conducting unit 14 can be such that the output port of the temperature mixing unit 13 is directly connected to the input port of the second heat-conducting unit 14. This connection method ensures that the heat mixed by the temperature mixing unit 13 can be transferred to the second heat-conducting unit 14 without loss, thereby achieving efficient heat conduction. By precisely controlling the connection position, the uniformity and stability of heat during the transfer process can be guaranteed, further improving the performance and reliability of the entire temperature control system. In addition, this direct connection method also helps to simplify the structure, reduce heat loss during the transfer process, and improve energy utilization efficiency.

[0058] In one embodiment, such as Figure 5 As shown, the temperature sensor performance testing device further includes a thermal bridge connecting component 15, which is disposed on the second heat-conducting part 14. The thermal bridge connecting component 15 includes a third heat-conducting part 151, which is movably inserted into the second heat-conducting part 14 and divides the second heat-conducting part 14 into a phase-separated first segment and a second segment. The third heat-conducting part 151 is used to connect the thermal bridge between the first segment and the second segment, and is connected to the driving end of the first driver 152. This embodiment can achieve dynamic adjustment and precise control of heat transfer. By controlling the position of the third heat-conducting part 151 by the first driver 152, the thermal bridge area between the first segment and the second segment can be changed, thereby adjusting the rate and amount of heat transfer. When the temperature measuring unit 9 detects an abnormal temperature on one side of the constant temperature component, the heat transfer can be reduced or cut off by adjusting the thermal bridge connecting component 15, ensuring the uniformity and stability of the temperature in the constant temperature space. This dynamic adjustment mechanism improves the flexibility and accuracy of temperature control, and further enhances the reliability and accuracy of temperature sensor performance testing.

[0059] In one embodiment, the third heat-conducting part 151 can be a metal sheet or rod with high thermal conductivity, such as a copper sheet or an aluminum rod. These materials not only efficiently conduct heat, ensuring rapid heat transfer between the first and second sections, but also allow for precise control of the heat transfer rate by adjusting their contact area with the first and second sections. Furthermore, the metal sheet or rod has a simple structure, is easy to process and install, and can adapt to different installation spaces and layout requirements, further improving the flexibility and reliability of the entire temperature control system.

[0060] In one embodiment, the first driver 152 can be a miniature stepper motor. This type of motor features high precision, low noise, and fast response, enabling precise control of the movement position of the third heat-conducting part 151, thereby achieving accurate adjustment of the thermal bridge area. Miniature stepper motors are small in size and light in weight, facilitating integration into detection devices. Their control method is simple, achieving precise position control via pulse signals, making them suitable for temperature control scenarios requiring high-precision dynamic adjustment. Furthermore, stepper motors offer high reliability, maintaining stable performance during long-term operation, further improving the reliability and stability of the entire temperature sensor detection device.

[0061] Of course, in other embodiments, the first driver 152 is not limited to a micro stepper motor; for example, it can also be a cylinder, which will not be elaborated here.

[0062] In one embodiment, such as Figure 5 As shown, the first driver 152 is fixedly mounted on the inner wall of the sealed housing 153, which covers the second heat-conducting part 14 for sealing the first and second sections with the third heat-conducting part 151. This configuration ensures that heat does not leak into the external environment during the transfer process, thereby improving heat utilization efficiency and temperature control accuracy. The design of the sealed housing 153 also prevents external environmental interference in the heat transfer process, enhancing the stability and reliability of the system. Simultaneously, fixing the first driver 152 to the inner wall of the sealed housing 153 protects the driver from external factors, extending its service life and further improving the reliability and durability of the entire temperature sensor detection device.

[0063] In one embodiment, each surface of the thermostatic component is connected to a plurality of second heat-conducting parts 14, and the plurality of second heat-conducting parts 14 are arranged in a matrix or in a plurality of concentric circles; this arrangement can further improve the uniformity and efficiency of heat transfer. By providing a plurality of second heat-conducting parts 14 on each surface, heat can be uniformly transferred to various parts of the thermostatic component from different directions, reducing the generation of temperature gradients, thereby achieving a high degree of temperature consistency within the thermostatic space. The matrix arrangement or concentric circle arrangement can be optimized according to the specific shape and size of the thermostatic component to achieve the best heat distribution effect, further improving the accuracy and reliability of temperature sensor performance detection.

[0064] In one embodiment, such as Figure 2 and Figure 3 As shown, the inner casing assembly also includes a telescopic component 8, which includes a telescopic rod 81 fixedly connected to the inner casing cover 5. The telescopic rod 81 is movably inserted into a telescopic cylinder 82, which is fixedly installed in a mounting groove on the inner casing 4. A telescopic spring 83 is wound around the telescopic rod 81, with both ends of the spring 83 fixedly connected to the side wall of the telescopic rod 81 and the outer side wall of the telescopic cylinder 82, respectively. This embodiment effectively absorbs and buffers mechanical impacts and vibrations between the outer casing assembly and the inner casing assembly, protecting the temperature control assembly and the internal temperature sensor from damage. Furthermore, the elastic design of the telescopic component 8 can accommodate temperature sensors of different sizes, ensuring they can be stably placed in the temperature control space during detection, thus improving the adaptability and reliability of the detection device.

[0065] To address the problems existing in the prior art, embodiments of the present invention also provide a method for detecting the performance of a temperature sensor, such as... Figure 6 As shown, the temperature sensor performance testing device is used to test the temperature sensor by creating a constant temperature environment. The testing method includes the following steps:

[0066] S1: Set the preset detection temperature.

[0067] Specifically, the required detection temperature value is input into the control system (such as a PLC or microprocessor). This value is typically predetermined based on the specifications of the temperature sensor and the detection requirements. The control system stores this preset temperature value in its memory and uses it as the target value for subsequent temperature adjustment and control. In subsequent steps, the temperature regulating components (cooling unit 10 and heating unit 11) adjust the generation and transfer of heat according to this preset temperature value, ensuring that the temperature within the thermostat reaches and is maintained at the set preset detection temperature, thereby providing a stable and accurate detection environment for the temperature sensor.

[0068] S2: Control the operation of the cooling unit 10 and the heating unit 11. The heat generated by the two is conducted to the temperature mixing unit 13 through the first heat conduction unit 12 and then mixed to reach the preset detection temperature.

[0069] Specifically, the control system activates the cooling unit 10 and the heating unit 11 according to a preset detection temperature value. The cooling unit 10 generates cooling energy through a cooling cycle, while the heating unit 11 generates heat through an electric heating element. The cooling and heating energy generated by these two parts is conducted to the temperature mixing unit 13 through their respective first heat conduction sections 12. Within the temperature mixing unit 13, the cooling and heating energy is fully mixed by a guide plate or turbulence device in the mixing chamber, forming a uniform temperature field. By precisely controlling the power output of the cooling unit 10 and the heating unit 11, as well as the heat ratio during the mixing process, the temperature after mixing ultimately reaches the preset detection temperature. This process not only ensures precise temperature control but also eliminates temperature gradients through the mixing process, providing a stable and uniform heat source for subsequent temperature conduction.

[0070] S3: The preset detection temperature mentioned in S2 is synchronously conducted to all surfaces of the constant temperature component through several second heat conduction parts 14, so as to synchronously heat up all surfaces of the constant temperature component.

[0071] In this step, the preset detection temperature, after being mixed by the temperature mixing section 13, is simultaneously conducted to all surfaces of the thermostatic component through several second heat-conducting sections 14. Specifically, the second heat-conducting sections 14 act as heat transfer channels, conducting the uniform temperature generated by the temperature mixing section 13 to each surface of the thermostatic component. Since there are several second heat-conducting sections 14, and each surface is connected to at least one second heat-conducting section 14, heat can be simultaneously and uniformly transferred to all parts of the thermostatic component, achieving synchronous heating of all surfaces. This synchronous conduction mechanism ensures the uniformity of the internal temperature of the thermostatic component, avoiding temperature gradients caused by uneven heat transfer, thereby providing a stable and uniform detection environment for the temperature sensor and improving the accuracy and reliability of the detection.

[0072] S4: During the heating process, when the temperature measuring unit 9 detects that the temperature on one side of the constant temperature component is abnormally higher than that on other sides, the first driver 152 will be activated to control the third heat conducting unit 151 to move upward, so as to reduce the thermal bridge area connecting the first segment and the second segment, reduce heat transfer, or disconnect the thermal bridge between the first segment and the second segment, and disconnect heat transfer.

[0073] In this step, as the thermostat component heats up, the temperature sensing unit 9 monitors the temperature on each surface of the thermostat component in real time. If the temperature sensing unit 9 detects that the temperature of one surface is abnormally higher than that of the other surfaces, it indicates that the heat transfer is uneven. At this time, the control system activates the first driver 152, which controls the third heat-conducting part 151 to move upward through its driving end. The movement of the third heat-conducting part 151 changes the thermal bridge area between the first and second sections of the second heat-conducting part 14. Specifically, when the third heat-conducting part 151 moves upward, it reduces the contact area between the first and second sections, thereby reducing heat transfer. If it is necessary to cut off heat transfer more completely, the third heat-conducting part 151 can completely disconnect the thermal bridge between the first and second sections, preventing further heat transfer. This dynamic adjustment mechanism can quickly respond to temperature anomalies, ensure the uniformity of the internal temperature of the thermostat component, thereby providing a stable and accurate detection environment for the temperature sensor, further improving the accuracy and reliability of the detection.

[0074] While embodiments of the present invention have been described in detail above, it will be apparent to those skilled in the art that various modifications and variations can be made to these embodiments. However, it should be understood that such modifications and variations fall within the scope and spirit of the present invention. Furthermore, the present invention described herein may have other embodiments and can be implemented or carried out in various ways.

Claims

1. A temperature sensor performance testing device, characterized in that, include: Outer casing components; The inner casing assembly is disposed within the outer casing assembly; A temperature control component is disposed inside the inner box assembly. The interior of the temperature control component has a temperature-controlled space for temperature sensor detection. The temperature control component has a polygonal structure. A temperature measuring unit, the temperature measuring end of which is located in the constant temperature space, and a number of temperature measuring units are provided. At least one temperature measuring unit is provided on each face of the constant temperature component, which has a polygonal structure. Temperature regulating components are disposed within the outer casing assembly; The second heat-conducting part has one end connected to the outlet end of the temperature regulating component and the other end connected to the constant temperature component. The number of the second heat-conducting parts is set to a certain extent. Each surface of the constant temperature component is connected to at least one second heat-conducting part. The axial heat conduction distance of the several second heat-conducting parts to each surface of the constant temperature component is the same. The temperature regulating component includes a cooling section and a heating section. The cooling section and the heating section are detachably disposed at the bottom of the outer casing assembly. The temperature outlet ends of the cooling section and the heating section are both connected to a first heat-conducting section. The free ends of the two first heat-conducting sections are both connected to a temperature mixing section. The temperature mixing section is connected to a second heat-conducting section. It also includes a thermal bridge connecting component, which is disposed on the second heat-conducting part. The thermal bridge connecting component includes a third heat-conducting part, which is movably inserted into the second heat-conducting part and divides the second heat-conducting part into a first segment and a second segment that are separated from each other. The third heat-conducting part is used to connect the thermal bridge between the first segment and the second segment. The third heat-conducting part is connected to the driving end of the first driver. The first driver is fixedly disposed on the inner side wall of the sealing box. The sealing box is disposed outside the second heat-conducting part for sealing the first segment and the second segment with the third heat-conducting part.

2. The temperature sensor performance testing device according to claim 1, characterized in that, The second heat-conducting part includes a heat-conducting body and a heat-insulating sleeve covering the heat-conducting body, wherein the second heat-conducting part has a rod-shaped structure, a wave-shaped structure or a spiral structure.

3. The temperature sensor performance testing device according to claim 1, characterized in that, Each surface of the constant temperature component is connected to a plurality of second heat-conducting parts, and the plurality of second heat-conducting parts are arranged in a matrix or in a plurality of concentric circles.

4. The temperature sensor performance testing device according to claim 1, characterized in that, The outer casing assembly includes an outer casing body, an outer casing cover disposed above the outer casing body for sealing the opening of the outer casing body, and a height adjustment component connecting the outer casing body and the outer casing cover. The height adjustment component includes a support plate fixed on the outer casing body and a cylinder disposed on the support plate. The drive end of the cylinder is connected to the upper surface of the outer casing cover.

5. The temperature sensor performance testing device according to claim 4, characterized in that, The inner box assembly includes an inner box body fixedly disposed within the outer box body, and an inner box cover fixedly disposed on the outer box cover. The inner box cover is matched with the inner box body, and the inner box cover and the inner box body enclose a sealed space surrounding the thermostatic component. The inner box body and the inner box cover are both made of materials that are not good conductors of heat.

6. The temperature sensor performance testing device according to claim 5, characterized in that, The temperature control assembly includes a temperature control chamber fixed inside the inner chamber and a temperature control chamber cover fixed on the inner chamber cover. The temperature control chamber cover is matched with the temperature control chamber, and the temperature control chamber cover and the temperature control chamber enclose the temperature control space. Both the temperature control chamber cover and the temperature control chamber are made of materials that are good conductors of heat.

7. The temperature sensor performance testing device according to claim 5, characterized in that, The inner box assembly also includes a telescopic component, which includes a telescopic rod fixedly connected to the inner box cover. The telescopic rod is movably inserted into a telescopic cylinder, which is fixedly installed in a mounting groove on the inner box body. A telescopic spring is wound around the telescopic rod, and the two ends of the telescopic spring are respectively fixedly connected to the side wall of the telescopic rod and the outer side wall of the telescopic cylinder.

8. A method for testing the performance of a temperature sensor, characterized in that, The temperature sensor performance testing device as described in any one of claims 1 to 7 is used to test the temperature sensor by creating a constant temperature environment. The testing method includes the following steps: S1: Set the preset detection temperature; S2: Control the operation of the cooling and heating units. The heat generated by the two is conducted to the temperature mixing unit through the first heat conduction unit and then mixed to reach the preset detection temperature. S3: The preset detection temperature mentioned in S2 is synchronously conducted to all surfaces of the constant temperature component through several second heat-conducting parts, so as to synchronously heat up all surfaces of the constant temperature component. S4: During the heating process, when the temperature measuring unit detects that the temperature on one side of the constant temperature component is abnormally higher than that on other sides, the first driver will be activated to control the third heat conduction part to move upward, so as to reduce the thermal bridge area connecting the first segment and the second segment, reduce heat transfer, or disconnect the thermal bridge between the first segment and the second segment, and disconnect heat transfer.

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