Vacuum glass on-line rapid detector and method

Abstract

The invention relates to the field of vacuum glass detection, and discloses a vacuum glass on-line rapid detector, which comprises a measuring assembly and a constant temperature assembly which are respectively positioned on two sides of vacuum glass and are coaxial, the measuring assembly is provided with a vacuum chuck and a measuring probe, and the vacuum chuck forms a vacuumizing cavity on one side of the glass; the constant-temperature assembly continuously outputs constant heat on the other corresponding side, and the measuring probe is located in the middle of the vacuumizing cavity to detect the temperature and transmit the temperature to the temperature measuring and controlling system. The measuring probe is in a vacuum environment by means of the vacuumizing cavity, so that the heat interference of ambient air is thoroughly blocked, and the measurement accuracy is greatly improved; the invention further provides a detection method adaptive to an online production scene, the period is shortened through rapid temperature detection in a vacuum environment, the cycle of a production line can be matched, full-batch online detection is achieved, and the problems that traditional offline sampling detection is low in efficiency and high in missing detection risk are solved.

Description

Technical Field

[0001] This invention relates to the field of vacuum glass testing, and specifically to an online rapid testing instrument and method for vacuum glass. Background Technology

[0002] Vacuum glass, as an energy-saving building material with excellent thermal insulation properties, is widely used in building curtain walls, high-end home appliances (such as refrigerated display cases), and rail transit windows due to its core advantage of effectively blocking heat conduction and convection through its vacuum layer. With downstream applications continuously increasing their requirements for product performance stability, and with vacuum glass production lines developing towards continuous and high-speed operations, online, rapid, and accurate testing of the heat transfer performance of vacuum glass has become a crucial step in ensuring product quality and preventing substandard products from entering the market.

[0003] Currently, the industry mainly uses traditional thermal measurement methods to test the heat transfer performance of vacuum glass. The core idea is to cover the measuring probe with an insulation board to reduce the interference of environmental heat dissipation on the test results, and then assess the heat transfer performance by monitoring the temperature change of the glass surface. However, the insulation boards used in traditional methods are mostly made of elastic foam material, which needs to be in direct contact with the surface of the vacuum glass to form a closed space. Due to the possibility of slight flatness deviations on the surface of vacuum glass during the production process, and the difficulty in ensuring a completely tight fit between the insulation board and the glass surface by manual or mechanical operation, ambient air can easily seep into the insulation area, forming additional heat exchange channels, directly interfering with the accuracy of temperature measurement data, and failing to accurately reflect the actual heat insulation performance of the vacuum glass. Furthermore, although the insulation board itself has a certain heat insulation capacity, it is still a heat conduction medium. Heat transfer will inevitably occur in the contact area with the glass surface, and heat loss will also occur in the contact area between the edge of the insulation board and the ambient air. As a result, the environment in which the measuring probe is located is not in an ideal insulation state, further amplifying the test deviation, especially when the ambient temperature of the production line fluctuates greatly (such as high temperature in the workshop in summer and ventilation and cooling in winter), this problem is more prominent. Summary of the Invention

[0004] The purpose of this invention is to provide an online rapid testing instrument and method for vacuum glass. By forming a vacuum chamber through a vacuum suction cup, the measuring probe is completely in a vacuum environment, which completely blocks the thermal interference of ambient air and greatly improves the accuracy of the measurement.

[0005] This invention is achieved through the following technical solution: A vacuum glass online rapid testing instrument, comprising: The measuring component and the temperature control component are located on opposite sides of the vacuum glass and on the same axis. The measuring component includes a vacuum suction cup and a measuring probe. The vacuum suction cup forms a vacuum chamber on one side of the vacuum glass. The temperature control component maintains a constant temperature on the opposite side of the vacuum chamber. The measuring probe is located in the middle of the vacuum chamber and detects the temperature of the vacuum glass, sending the temperature information to the temperature measurement and control system.

[0006] In this solution, the measuring component and the temperature control component are placed on opposite sides of the vacuum glass and arranged coaxially. The vacuum chamber formed by the vacuum suction cup completely isolates the ambient air from thermal interference in the measuring area, avoiding problems such as air infiltration and abnormal heat exchange caused by poor adhesion of the insulation layer in traditional testing. Combined with the measuring probe located in the center of the vacuum chamber, temperature changes during the glass's heat transfer process can be accurately captured, significantly improving testing accuracy. Furthermore, the temperature control component maintains a constant temperature, providing a stable heat source for testing. The coaxial arrangement ensures a concentrated and traceable heat transfer path, effectively eliminating interference from lateral heat transfer in the glass and thermal bridging effects of the support structure. This structure is also adaptable to online production scenarios. Rapid temperature detection in a vacuum environment shortens the testing cycle to match production line pace, enabling full-batch online testing. This solves the problems of low efficiency and high risk of missed detection in traditional offline sampling testing. Ultimately, accurate and efficient testing data provides a reliable basis for determining the vacuum level and heat transfer performance of the vacuum glass, ensuring product quality stability.

[0007] As a further embodiment of the detector, the constant temperature component includes a constant temperature plate, a heating element, and a temperature control probe. The constant temperature plate is in close contact with one side of the vacuum glass to avoid heat loss or unstable heat transfer caused by contact gaps. The heating element and the temperature control probe are both built into the constant temperature plate, and the temperature control probe is electrically connected to the temperature measurement and control system to provide feedback on the real-time temperature of the constant temperature plate, forming a closed-loop temperature control logic. This ensures that the temperature of the constant temperature plate is always maintained at a set constant value, effectively eliminating the interference of ambient temperature fluctuations on the stability of the heat source and ensuring the consistency and repeatability of heat output.

[0008] As a further solution for the detector, the diameter of the constant temperature plate is greater than twice the spacing between the supports in the vacuum glass. This allows the heat coverage of the constant temperature plate to completely exceed the local area formed by a single set of supports, avoiding local interference to the temperature field of the detection area caused by the "thermal bridge effect" (heat is easily conducted through the supports). This ensures that the heat transferred from the constant temperature plate to the glass can be evenly applied to a wider detection surface, thereby offsetting the temperature loss or uneven distribution caused by the lateral heat transfer of the glass itself.

[0009] As a further embodiment of the detector, the measuring component also includes an elastic connector. The measuring probe is suspended in the middle of the vacuum chamber and pressed against one side of the vacuum glass through the elastic connector. The elastic structure can adapt to the slight flatness deviation that may exist on the surface of the vacuum glass. Even if there are slight protrusions or depressions on the glass surface, it can still maintain effective contact between the probe and the glass through elastic deformation, avoiding fluctuations in the detection data caused by poor contact, and further adapting to the slight positional shift during the glass transmission process in online detection.

[0010] As a further solution for the detector, a vacuum system is also included. The vacuum system is connected to the vacuum suction cup through a pipe, so that a vacuum is formed inside the vacuum suction cup, which can quickly realize the vacuuming operation of the vacuum chamber to adapt to the high-efficiency rhythm of online detection.

[0011] As a further solution for the testing instrument, a lifting and positioning system is also included. The lifting and positioning system is connected to the measuring component and the constant temperature component respectively, and is used to drive the two components to move closer to or away from the vacuum glass along the axial direction. It can adapt to glass of different thicknesses, ensure the vacuum suction cup is sealed and adhered, and the constant temperature plate transfers heat efficiently, avoiding adhesion problems caused by thickness differences. At the same time, it keeps the two components coaxially aligned, ensuring that heat is accurately transferred to the testing area, and can be automated to match the rhythm of the production line, improving testing efficiency and continuity without manual intervention.

[0012] As a further solution to the detector, a positioning device is also included. The positioning device pushes the vacuum glass so that the measuring probe is directly facing the center of the rectangle formed by the support in the vacuum glass. This ensures that the detection area is dominated by the vacuum layer, so that the temperature data captured by the measuring probe is entirely derived from the difference in vacuum level of the vacuum layer. This significantly reduces the detection deviation caused by the support and improves the accuracy of determining the heat transfer performance of the vacuum glass.

[0013] A method for rapid online inspection of vacuum glass, using a rapid online inspection instrument for vacuum glass, includes the following inspection steps: Step 1: Drive the measuring component and the constant temperature component to move through the lifting and positioning system, so that they are aligned with the detection areas on both sides of the vacuum glass and form a coaxial arrangement; Step 2: The vacuum suction cup adheres to the surface of the vacuum glass to form a closed vacuum chamber, and the vacuum system is activated to evacuate the vacuum chamber; Step 3: The temperature measurement and control system ensures that the thermostat component maintains a constant temperature on the vacuum glass side, and the measuring probe detects the temperature change of the vacuum glass surface in real time.

[0014] Step 4: The temperature measurement and control system records the temperature rise data of the measuring probe within a preset time. Based on the temperature rise data, it is determined whether the heat transfer performance of the vacuum glass is qualified. In this step, the preset measurement time is 3 to 5 minutes, starting from 0-10 seconds after the measuring probe contacts the vacuum glass.

[0015] To improve the accuracy of determining the heat transfer performance of vacuum glass, in step 1, the temperature measurement and control system automatically aligns the detection area with the center of the rectangular gap formed by the supports by identifying the positional distribution of the supports on the surface of the vacuum glass. In step 3, the output temperature of the thermostatic component is set to a fixed value between 30°C and 60°C higher than the initial surface temperature of the vacuum glass. This output temperature is set when the measuring probe contacts the vacuum glass and remains constant thereafter until it is reset when the measuring probe contacts the next piece of vacuum glass.

[0016] Compared with the prior art, the present invention has the following advantages and beneficial effects: 1. This invention forms a vacuum chamber using a vacuum suction cup, completely isolating the ambient air from thermal interference in the measurement area. Combined with an elastic connector, it ensures stable contact between the measurement probe and the glass surface, avoiding errors caused by loose insulation layers in traditional methods. This allows for accurate reflection of the actual heat transfer performance of the vacuum glass. 2. This invention also integrates a lifting and positioning system to achieve automated alignment and rapid opening and closing, and a vacuum system to quickly complete vacuuming. Combined with short-cycle detection logic, it perfectly matches the pace of rapid production in modern production lines, solving the problems of low efficiency and high risk of missed detection in traditional offline sampling and detection, and realizing online detection of the entire batch. Attached Figure Description

[0017] The accompanying drawings, which are included to provide a further understanding of embodiments of the invention and form part of this application, do not constitute a limitation thereof. In the drawings: Figure 1 This is a front view structural diagram of the present invention; Figure 2 This is a top view of the structure of the present invention.

[0018] The attached diagram shows the markings and corresponding component names: 1-Vacuum glass, 2-Support, 3-Vacuum suction cup, 4-Flexible connector, 5-Mounting chassis, 6-Measuring probe, 7-Vacuum system, 8-Constant temperature plate, 9-Temperature control probe, 10-Heating element, 11-Insulation layer, 12-Temperature measurement and control system, 13-Measuring head lifting device, 14-Constant temperature plate lifting device, 15-Transfer roller, 16-Positioning device. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the embodiments and accompanying drawings. The illustrative embodiments and descriptions of the present invention are only used to explain the present invention and are not intended to limit the present invention. Example 1

[0020] This embodiment 1 provides an online rapid testing instrument for vacuum glass, such as... Figures 1-2 As shown, the detector can be installed as a whole on the detection station of the automatic transfer table of the vacuum glass production line. The transfer table is equipped with a transfer roller 15 for conveying vacuum glass 1. The detector includes a measuring component and a constant temperature component. The measuring component and the constant temperature component are located on both sides of the vacuum glass 1 and on the same axis. Among them, such as Figure 1 As shown, the measuring component is mounted on the upper part of the transmission platform to detect the temperature change on the side of the vacuum glass 1 away from the thermostat component. It includes a vacuum suction cup 3, an elastic connector 4, a mounting base 5, and a measuring probe 6. The mounting chassis 5 is a circular flat plate made of No. 45 steel, which serves as the supporting base for the measuring component. It is fixedly connected to the measuring head lifting device 13 in the lifting and positioning system by bolts, so as to realize the overall lifting and adjustment of the measuring component. Its surface is provided with a vacuum pipe interface for connecting the vacuum system 7 and the vacuum suction cup 3.

[0021] The vacuum suction cup 3 is a bowl-shaped structure made of nitrile rubber. It is sealed to the lower surface of the mounting base 5 through a sealing ring, and the opening faces downwards and directly towards the vacuum glass 1. The vacuum suction cup 3 forms a sealed space inside, which can form a negative pressure after the vacuum system 7 is evacuated. On the one hand, it makes the suction cup fit tightly against the glass surface, and on the other hand, it provides a vacuum detection environment for the measuring probe 6, completely blocking the thermal interference of ambient air on temperature detection. Its diameter is designed to be no less than the diameter of the constant temperature plate 8 in the constant temperature component, ensuring that the detection area completely covers the area affected by the heat source.

[0022] The elastic connector 4 is connected inside the vacuum suction cup 3. It consists of a stainless steel spring and a polytetrafluoroethylene sleeve. The two ends of the spring are welded and fixed to the lower surface of the mounting base 5 and the top of the measuring probe 6, respectively. The sleeve is wrapped around the outside of the spring to avoid the influence of the spring's heat conduction on the detection. Its elastic characteristics can adapt to the slight flatness deviation of the vacuum glass 1 surface, ensuring that the measuring probe 6 is always pressed against the glass surface, which not only ensures the stability of temperature conduction, but also avoids damage to the glass surface due to pressure.

[0023] The measuring probe 6 is suspended at the center of the vacuum suction cup 3 via the elastic connector 4, and directly contacts the glass surface to collect temperature data in real time. The probe passes through the wiring hole of the mounting chassis 5 with a high-temperature shielded wire and is electrically connected to the temperature measurement and control system 12 to realize the real-time transmission of temperature signals.

[0024] Please refer to the following: Figure 1 The constant temperature component is installed at the lower part of the transmission table (in the gap between the transmission rollers 15) and is fixedly connected to the constant temperature plate lifting device 14 in the lifting and positioning system by bolts, so as to realize the overall lifting and adjustment of the constant temperature component, which is used to provide a stable and controllable heat source for the vacuum glass 1. It includes a constant temperature plate 8, a heating element 10, a temperature control probe 9 and a heat insulation layer 11. The constant temperature plate 8 is a circular plate made of 6061 aluminum alloy. The aluminum alloy has a thermal conductivity of ≥200W / (m・K) and a specific heat capacity of ≥900J / (kg・K), which can quickly and evenly transfer heat. Its diameter is designed to be more than twice the distance between the supports 2 in the vacuum glass 1, preferably ≥15cm, to ensure that the heat source coverage range completely exceeds the local area formed by a single set of supports, offsetting the influence of lateral heat transfer in the glass and avoiding the "thermal bridge effect" of the supports from interfering with the test results. At the same time, the upper surface of the constant temperature plate 8 is precision ground to ensure a tight fit with the lower surface of the vacuum glass 1, reducing contact thermal resistance.

[0025] The heating element 10 is embedded inside the constant temperature plate 8 through a casting process and is distributed in a spiral shape to ensure the uniformity of the surface temperature of the constant temperature plate 8. The heating element 10 is connected to the temperature measurement and control system 12 through wires. The system adjusts the heating power according to the feedback signal of the temperature control probe 9 to achieve constant temperature control.

[0026] Temperature probe 9 is also embedded in the center of constant temperature plate 8 to collect the actual temperature of constant temperature plate 8 in real time; its output signal is transmitted to temperature measurement and control system 12 through wires and compared with preset temperature (30℃-60℃ higher than the initial surface temperature of glass, preferably 50℃ in this embodiment) to form closed-loop temperature control and ensure the temperature fluctuation range of constant temperature plate 8.

[0027] Meanwhile, in order to reduce energy consumption and improve heat source stability, the insulation layer 11 adopts a cylindrical structure made of ceramic fiber cotton, which is wrapped around the outside and bottom of the constant temperature plate 8, and only the upper surface of the constant temperature plate 8 is exposed. This is used to reduce the heat loss of the constant temperature plate 8 to the environment and to maximize the transfer of heat generated by the heating element 10 to the vacuum glass 1.

[0028] In this embodiment, both the measuring head lifting device 13 and the constant temperature plate lifting device 14 adopt ball screw lifting machines to drive the measuring component and the constant temperature component to move in a direction perpendicular to the surface of the vacuum glass 1, respectively.

[0029] In this embodiment, as Figure 2As shown, the detector also includes a positioning device 16, which consists of two horizontal cylinders and two vertical cylinders, respectively installed on the front, back, left, and right sides of the detection station on the transfer table. The piston rod ends of the cylinders are equipped with polyurethane buffer blocks. When the vacuum glass 1 is transferred to the detection station, the temperature measurement and control system 12 automatically calculates the center coordinates of the rectangle formed by the support 2 according to the preset length and width dimensions of the glass and the spacing of the support 2. Then, it controls the horizontal and vertical cylinders to move the glass until the center coordinates coincide with the axis of the measuring component-temperature constant component, ensuring that the measuring probe 6 is directly facing the center of the rectangle of the support and avoiding the interference of thermal bridges of the support on the detection. Example 2

[0030] This embodiment 2 provides a method for rapid online testing of vacuum glass, using a rapid online testing instrument for vacuum glass described in embodiment 1. The specific testing steps are as follows: Step 1: Drive the measuring component and the constant temperature component to move through the lifting and positioning system, so that they are aligned with the detection areas on both sides of the vacuum glass and form a coaxial arrangement; Specifically, the production line transports the vacuum glass 1 to be inspected to the inspection station via the transfer roller 15. After the photoelectric sensor of the transfer table (pre-set at the entrance of the inspection station) detects the glass, it sends a signal to the temperature measurement and control system 12, the transfer roller 15 stops rotating, and the glass is in a static state awaiting inspection.

[0031] The temperature measurement and control system 12 automatically calculates the center coordinates of the rectangle formed by the support 2 based on the preset length and width dimensions of the glass and the spacing between the supports using a built-in algorithm. These coordinates are the detection center that the measuring probe 6 needs to be aligned with.

[0032] At this time, the positioning device 16 is activated: the piston rod of the transverse cylinder (installed on the left and right sides of the inspection station) extends, pushing the glass to move laterally until the transverse center of the glass coincides with the calculated transverse coordinate; then the piston rod of the longitudinal cylinder (installed on the front and rear sides of the inspection station) extends, pushing the glass to move longitudinally until the longitudinal center of the glass coincides with the calculated longitudinal coordinate; after positioning is completed, the cylinder piston rod retracts and resets, and the temperature measurement and control system 12 records the glass position at this time to ensure that the axis of the measuring component and the constant temperature component are aligned with the center of the rectangular support, avoiding the interference of the "thermal bridge effect" of the support.

[0033] Step 2: The vacuum suction cup adheres to the surface of the vacuum glass to form a closed vacuum chamber, and the vacuum system is activated to evacuate the vacuum chamber; Specifically, the constant temperature plate lifting device 14 drives the constant temperature component to rise vertically until the upper surface of the constant temperature plate 8 is tightly attached to the lower surface of the vacuum glass 1, ensuring that there is no contact gap between the constant temperature plate and the glass and reducing thermal resistance; at the same time, the measuring head lifting device 13 drives the measuring component to fall vertically until the lower surface of the vacuum suction cup 3 is completely attached to the upper surface of the vacuum glass 1. During the attachment process, the stainless steel spring of the elastic connector 4 is gradually compressed, so that the measuring probe 6 presses against the glass surface to ensure stable temperature conduction.

[0034] The temperature measurement and control system 12 sends a signal to the miniature vacuum pump, which evacuates the vacuum suction cup 3 through the vacuum pipeline. The evacuation process lasts for 10 seconds. During this period, the pressure sensor of the vacuum system monitors the air pressure inside the suction cup in real time until the air pressure drops to ≤5Pa, ensuring that the measuring probe 6 is completely in a vacuum environment and completely blocking the interference of thermal convection and thermal conduction of the ambient air. After the evacuation is completed, the vacuum pump maintains a low pressure state to maintain the vacuum degree inside the suction cup until the detection is completed.

[0035] Step 3: The temperature measurement and control system ensures that the thermostat component maintains a constant temperature to the vacuum glass side, and the measuring probe detects the temperature change of the vacuum glass surface in real time; Specifically, the temperature measurement and control system 12 first acquires the initial surface temperature T0 of the vacuum glass through a measuring probe. Based on this, the output temperature of the constant temperature component is set to a constant value of T0 + 30℃ to 60℃. This temperature constant value remains constant during the current testing cycle until the next piece of glass is tested, at which point it is reset according to a new T. Then, the heating element 10 built into the constant temperature component is activated. Since the initial temperature of each piece of glass hardly changes during continuous measurement, in this embodiment, the heating element 10 remains on and maintains a constant temperature from the initial startup until the device is shut down. Afterward, the actual temperature T of the constant temperature plate 8 is acquired in real time through the temperature control probe 9 embedded in the constant temperature plate 8. 实 The temperature of the constant temperature plate 8 is compared with the target temperature and the power of the heating element 10 is adjusted in a closed loop to stabilize the temperature of the constant temperature plate 8 (with minimal fluctuations). Then, since the constant temperature plate 8 is in close contact with the lower surface of the vacuum glass 1, the measuring probe 6 is in the vacuum chamber formed by the vacuum suction cup 3 and is pressed against the upper surface of the glass through the elastic connector. Finally, the measuring probe collects the surface temperature of the glass in real time from the moment it contacts the glass at a frequency of 1Hz and transmits it to the temperature measurement and control system 12, and starts the detection timer.

[0036] During the 3-minute detection cycle, the temperature measurement and control system 12 collects temperature data from the measuring probe 6 at a sampling frequency of 1Hz, collecting a total of 180 sets of data. The data is stored in the system memory in real time and the temperature change curve is dynamically displayed on the touch screen, which facilitates the operator to monitor the detection process in real time.

[0037] Step 4: The temperature measurement and control system 12 records the temperature rise data of the measuring probe 6 within 3 to 5 minutes, and determines whether the heat transfer performance of the vacuum glass is qualified based on the temperature rise data. Specifically, timing begins after the measuring probe contacts the vacuum glass. When the timer reaches 3 minutes, the temperature measurement and control system 12 automatically records the final temperature of the glass surface detected by the measuring probe 6 (denoted as T1) and calculates the temperature rise value ΔT = T1 - T0.

[0038] The system compares the calculated temperature rise value ΔT with the preset qualified temperature rise threshold. If ΔT < temperature rise threshold, the heat transfer performance of the vacuum glass 1 to be tested is deemed qualified. The system displays a "qualified" mark on the touch screen and automatically generates a test report (including glass number, test time, initial temperature, termination temperature, temperature rise value, and judgment result), which is then stored in the local database.

[0039] If the temperature rise value ΔT of a piece of glass exceeds the qualified threshold, the system will display a "non-compliant" mark and trigger an audible and visual alarm to remind the operator to re-inspect the glass. If the second re-inspection result is still non-compliant, the system will mark the glass number as "pending processing" and send a signal to the production line sorting device. Subsequently, the glass will be automatically sorted to the non-compliant product area to prevent it from entering the market.

[0040] After the pass / fail determination is completed, the temperature measurement and control system 12 sends a signal to the vacuum system 7, opens the vacuum valve to release air from the vacuum suction cup 3, restores the air pressure inside the suction cup to atmospheric pressure, and separates the vacuum suction cup from the glass surface; then, the measuring head lifting device 13 drives the measuring component to rise and reset, and the constant temperature plate lifting device 14 drives the constant temperature component to fall and reset.

[0041] After the lifting assembly is reset, the temperature measurement and control system 12 sends a signal to the transfer roller 15, the transfer roller restarts, and the qualified vacuum glass 1 is transported to the next process; at the same time, the photoelectric sensor at the entrance of the transfer table continues to detect the next piece of glass to be tested, repeating the above steps 1-4 to achieve continuous online detection.

[0042] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A vacuum glass online rapid testing instrument, characterized in that, include: The measuring component and the temperature control component are located on opposite sides of the vacuum glass (1) and on the same axis. The measuring component includes a vacuum suction cup (3) and a measuring probe (6). The vacuum suction cup (3) forms a vacuum chamber on one side of the vacuum glass (1). The thermostatic component maintains a constant temperature on the other side of the vacuum chamber. The measuring probe (6) is located in the middle of the vacuum chamber and detects the temperature of the vacuum glass (1), sending the temperature information to the temperature measurement and control system (12).

2. The vacuum glass online rapid testing instrument according to claim 1, characterized in that, The constant temperature assembly includes a constant temperature plate (8), a heating element (10), and a temperature control probe (9). The constant temperature plate (8) is attached to one side of the vacuum glass (1). The heating element (10) and the temperature control probe (9) are both built into the constant temperature plate (8). The temperature control probe (9) is electrically connected to the temperature measurement and control system (12) to adjust the output of the heating element (10) to maintain the temperature of the constant temperature plate (8) at a constant value.

3. The vacuum glass online rapid testing instrument according to claim 2, characterized in that, The diameter of the constant temperature plate (8) is more than twice the spacing between the supports (2) in the vacuum glass (1).

4. The vacuum glass online rapid testing instrument according to claim 1, characterized in that, The measuring assembly also includes an elastic connector (4), through which the measuring probe (6) is suspended in the middle of the vacuum chamber and abuts against one side of the vacuum glass (1).

5. The vacuum glass online rapid testing instrument according to claim 1, characterized in that, It also includes a vacuum system (7), which is connected to the vacuum suction cup (3) through a pipe to create a vacuum inside the vacuum suction cup (3).

6. The vacuum glass online rapid testing instrument according to claim 1, characterized in that, It also includes a lifting and positioning system, which is connected to the measuring component and the constant temperature component respectively, and is used to drive the two to move closer to or away from the vacuum glass (1) along the axial direction.

7. The vacuum glass online rapid testing instrument according to claim 1, characterized in that, It also includes a positioning device (16) that pushes the vacuum glass (1) so that the measuring probe (6) is directly facing the center of the rectangle formed by the support (2) in the vacuum glass (1).

8. A method for rapid online testing of vacuum glass, characterized in that, The online rapid testing instrument for vacuum glass according to any one of claims 1-7 includes the following testing steps: Step 1: Drive the measuring component and the constant temperature component to move through the lifting and positioning system, so that the two are aligned with the detection areas on both sides of the vacuum glass (1) and form a coaxial arrangement; Step 2: The vacuum suction cup (3) is attached to the surface of the vacuum glass (1) to form a closed vacuum chamber, and the vacuum system (7) is started to evacuate the vacuum chamber; Step 3: The temperature measurement and control system (12) ensures that the thermostat component maintains a constant temperature to the side of the vacuum glass (1), and the measuring probe (6) detects the temperature change of the vacuum glass surface in real time; Step 4: The temperature measurement and control system (12) records the temperature rise data of the measuring probe (6) within a preset time and determines whether the heat transfer performance of the vacuum glass (1) is qualified based on the temperature rise data.

9. The method for rapid online testing of vacuum glass according to claim 8, characterized in that, In step 1, the temperature measurement and control system (12) automatically aligns the detection area with the center of the rectangular gap formed by the support by identifying the position distribution of the support on the surface of the vacuum glass (1).

10. The method for rapid online detection of vacuum glass according to claim 8, characterized in that, In step 3, the output temperature of the constant temperature component is set to a fixed value between 30°C and 60°C higher than the initial surface temperature of the vacuum glass (1).

11. The method for rapid online detection of vacuum glass according to claim 8, characterized in that, In step 3, the output temperature of the thermostat is set when the measuring probe (6) contacts the vacuum glass (1) and remains thereafter until it is reset when the measuring probe (6) contacts the next piece of vacuum glass.

12. The method for rapid online detection of vacuum glass according to claim 8, characterized in that, In step 4, the preset measurement time is 3 to 5 minutes, starting from 0 to 10 seconds after the measuring probe (6) contacts the vacuum glass (1).

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