Aging test device for epoxy resin

Abstract

The utility model discloses an aging test device of epoxy resin relates to aging test equipment technical field, wherein, the aging test device of epoxy resin includes sealed box, gas supply module, temperature module, humidity module, illumination module and vacuum module, forms the aging cavity for placing epoxy resin in sealed box, gas supply module includes supply structure, supply inert gas structure and supply air structure, temperature module includes heater, temperature sensor and temperature controller, humidity module includes humidity regulator, humidity sensor and humidity controller, illumination module includes light source and light source controller, vacuum module includes vacuum pump, and vacuum pump communicates with aging cavity. The utility model provides the aging test device of epoxy resin can realize the simulation to the aging environment of high humidity, high temperature and being in air in strong light simultaneously, thereby can more accurately research the aging law and performance change of epoxy resin.

Description

Technical Field

[0001] This utility model relates to the technical field of aging test equipment, and in particular to an aging test device for epoxy resin. Background Technology

[0002] Epoxy resin is commonly used in dry-type air-core reactors. During long-term use, the epoxy resin is directly exposed to harsh environments such as strong light, high humidity, and high temperature, which causes the epoxy resin to age, resulting in degradation of its chemical structure, attenuation of its insulation performance, and deterioration of its mechanical properties.

[0003] Therefore, it is necessary to simulate an aging environment with strong light, high humidity, high temperature, and air exposure, and place epoxy resin in this environment to study its aging patterns and performance changes, thereby determining its service life. However, current aging test equipment for epoxy resins typically cannot simultaneously simulate environments with strong light, high humidity, high temperature, and air exposure, making it impossible to accurately study the aging patterns and performance changes of epoxy resins. Utility Model Content

[0004] The main purpose of this invention is to provide an aging test device for epoxy resin, which aims to solve the technical problem that epoxy resin aging test devices usually cannot simultaneously simulate environments with strong light, high humidity, high temperature, and air exposure, resulting in the inability to accurately study the aging law and performance changes of epoxy resin.

[0005] To achieve the above objectives, this utility model proposes an aging test device for epoxy resin, the aging test device comprising:

[0006] A sealed box, wherein an aging chamber for placing the epoxy resin is formed inside the sealed box;

[0007] The gas supply module includes an oxygen supply structure, an inert gas supply structure, and an air supply structure, all of which are connected to the aging chamber.

[0008] A temperature module, comprising a heater, a temperature sensor, and a temperature controller, wherein the temperature sensor and the heater are both electrically connected to the temperature controller and are both disposed inside the aging chamber, and the temperature controller is disposed outside the sealed box;

[0009] A humidity module, comprising a humidity regulator, a humidity sensor, and a humidity controller, wherein the humidity regulator and the humidity sensor are both electrically connected to the humidity controller and are both disposed inside the aging chamber, and the humidity controller is disposed outside the sealed box;

[0010] The illumination module includes a light source and a light source controller, which are electrically connected. The light source is located at the top of the aging chamber, and the light source controller is located outside the sealed box.

[0011] A vacuum module, the vacuum module including a vacuum pump, the vacuum pump being connected to the aging chamber;

[0012] The heater, the temperature sensor, the humidity regulator, the humidity sensor, and the light source are distributed in different positions within the aging chamber.

[0013] In one embodiment, the oxygen supply structure includes a first vent pipe and an oxygen cylinder, the oxygen cylinder storing oxygen and communicating with the aging chamber through the first vent pipe;

[0014] The inert gas supply structure includes a second vent pipe and an inert gas bottle. The inert gas bottle stores inert gas and is connected to the aging chamber through the second vent pipe.

[0015] The air supply structure includes a third vent pipe and an air bottle. The air bottle stores high-purity air and is connected to the aging chamber through the third vent pipe.

[0016] Solenoid valves are installed on the first vent pipe, the second vent pipe, and the third vent pipe.

[0017] In one embodiment, the oxygen supply structure further includes an oxygen sensor, a first processor, and an oxygen display screen. The oxygen sensor is disposed inside the aging chamber, and the oxygen display screen is disposed outside the sealed box. The solenoid valve, the oxygen sensor, and the oxygen display screen on the first ventilation pipe are all electrically connected to the first processor.

[0018] In one embodiment, the vacuum module further includes a vacuum level display screen, a second processor, and a vacuum gauge. The vacuum gauge is disposed inside the aging chamber, and the vacuum level display screen is disposed outside the sealed box. The vacuum pump, the vacuum gauge, and the vacuum level display screen are all electrically connected to the second processor. The vacuum pump is connected to the aging chamber through a fourth vent pipe. The solenoid valves on the second vent pipe, the third vent pipe, and the fourth vent pipe are all electrically connected to the second processor.

[0019] In one embodiment, the temperature module includes a plurality of heaters arranged circumferentially around the aging chamber.

[0020] In one embodiment, the temperature module further includes a temperature display screen disposed outside the sealed enclosure and electrically connected to the temperature controller; the humidity module further includes a humidity display screen disposed outside the sealed enclosure and electrically connected to the humidity controller.

[0021] In one embodiment, the light source is a xenon arc lamp.

[0022] In one embodiment, the aging test apparatus further includes a monitoring module, which includes a monitoring display screen and a monitoring camera. The monitoring camera is disposed inside the aging chamber, and the monitoring display screen is disposed outside the sealed box. The monitoring camera is electrically connected to the monitoring display screen.

[0023] In one embodiment, the aging test apparatus further includes a monitoring module, which includes a monitoring display screen and a monitoring camera. The monitoring camera is disposed inside the aging chamber, with its camera end facing the epoxy resin inside the aging chamber. The monitoring display screen is disposed outside the sealed box, and the monitoring camera is electrically connected to the monitoring display screen.

[0024] In one embodiment, the inner liner is a stainless steel inner liner, and the placement plate is a stainless steel perforated plate.

[0025] The technical solution of this utility model involves placing epoxy resin in an aging chamber within a sealed box, and then using a vacuum pump to evacuate the aging chamber, thereby reducing the air pressure inside the aging chamber, for example, to 10. -2 The pressure is kept below a certain level to ensure the gas inside the aging chamber is expelled. High-purity air, with a nitrogen-to-oxygen ratio of 4:1, is introduced into the aging chamber through an air supply structure to simulate natural air conditions. Inert gas is then introduced into the aging chamber through an inert gas supply structure. This inert gas ensures that water molecules within the chamber remain liquid at temperatures between 100°C and 120°C, thus maintaining a humidity level close to 100% and simulating a high-humidity aging environment.

[0026] During the aging process of epoxy resin, a heater can be used to heat the aging chamber, raising the temperature inside to 100℃ to 120℃ to simulate a high-temperature aging environment. A temperature sensor is installed inside the aging chamber, and a temperature controller is located outside the sealed enclosure. The temperature sensor collects temperature information from the aging chamber, and the temperature controller controls the heater to maintain the temperature within the aging chamber at 100℃ to 120℃, thus stably simulating a high-temperature aging environment.

[0027] When the temperature inside the aging chamber rises to 100℃ to 120℃, the humidity inside the aging chamber is adjusted by a humidity control component to maintain the humidity within a preset range, thus simulating a high-humidity aging environment. A humidity sensor is installed inside the aging chamber, and a humidity controller is located outside the sealed enclosure. The humidity sensor collects humidity information from the aging chamber, and the humidity controller adjusts the humidity regulator based on this information to maintain the humidity within the preset range, thereby stably simulating a high-humidity aging environment.

[0028] Furthermore, the light source positioned at the top of the aging chamber provides relatively uniform illumination, ensuring the chamber remains under constant strong light, thus simulating the intense light aging environment. A light source controller allows for the control of the light source's on / off state and brightness adjustment. Since the epoxy resin reacts with oxygen within the aging chamber during aging, consuming oxygen, this aging test device continuously replenishes oxygen through an oxygen supply structure, maintaining a nitrogen-to-oxygen ratio of 4:1. This ensures continuous simulation of natural air and guarantees the stability of the simulation.

[0029] The epoxy resin aging test device provided by this utility model integrates a sealed box, an air supply module, a temperature module, a humidity module, a light module, and a vacuum module. Through the cooperation between multiple modules, it can simulate the aging environment of strong light, high humidity, high temperature, and air exposure, so as to accurately study the aging law and performance changes of epoxy resin, and thus determine the service life of epoxy resin. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0031] Figure 1 A schematic diagram of an embodiment of the epoxy resin aging test device provided by this utility model;

[0032] Figure 2 A schematic diagram showing the connection between the air supply structure and the vacuum module in one embodiment of the epoxy resin aging test device provided by this utility model.

[0033] Figure 3 A schematic diagram showing the connection between the inert gas structure and the vacuum module in one embodiment of the epoxy resin aging test device provided by this utility model.

[0034] Figure 4 A schematic diagram of the connection of the oxygen supply structure in one embodiment of the epoxy resin aging test device provided by this utility model;

[0035] Figure 5 A schematic diagram of the connection of the temperature module in one embodiment of the epoxy resin aging test device provided by this utility model.

[0036] Figure 6 A schematic diagram of the connection of the humidity module in one embodiment of the epoxy resin aging test device provided by this utility model;

[0037] Figure 7 A schematic diagram of the connection of the light module in one embodiment of the epoxy resin aging test device provided by this utility model.

[0038] Figure 8 A schematic diagram of the connection of the monitoring module in one embodiment of the epoxy resin aging test device provided by this utility model.

[0039] Explanation of icon numbers:

[0040] 100. Aging device; 10. Sealed box; 11. Aging chamber; 12. Outer shell; 13. Inner liner; 14. Placement plate; 15. Insulation layer; 20. Gas supply module; 21. Oxygen supply structure; 211. First vent pipe; 212. Oxygen cylinder; 213. Oxygen display screen; 214. Oxygen sensor; 22. Inert gas supply structure; 221. Second vent pipe; 222. Inert gas cylinder; 23. Air supply structure; 231. Third vent pipe; 232. Air cylinder; 24. Solenoid valve; 30. 31. Temperature module; 32. Heater; 33. Temperature sensor; 40. Temperature controller; 41. Humidity module; 41. Humidity regulator; 411. Humidifier; 412. Dehumidifier; 42. Humidity sensor; 43. Humidity controller; 50. Vacuum module; 51. Vacuum pump; 52. Vacuum degree display screen; 53. Vacuum gauge; 54. Fourth vent pipe; 60. Monitoring module; 61. Monitoring display screen; 62. Monitoring camera; 70. Illumination module; 71. Light source; 72. Light source controller.

[0041] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0042] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0043] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0044] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0045] Epoxy resin, with its unique epoxy group and chain segment structure, forms a three-dimensional network structure through cross-linking reaction of the active groups in the curing agent. This endows it with excellent electrical insulation, mechanical properties, heat and corrosion resistance, and adhesion properties, making it the preferred material for encapsulating dry-type air-core reactors. However, during long-term service, epoxy resin materials in dry-type air-core reactors are directly exposed to harsh environments such as strong light, high humidity, and high temperature, leading to performance aging. This results in chemical structure degradation, insulation performance decline, mechanical property deterioration, and even fire hazards, seriously threatening the safe operation of the power system. Therefore, simulating the light, humidity, and heat aging environments of epoxy resin materials to study their performance aging patterns and accurately assess their lifespan is particularly important.

[0046] Currently, research on the environmental aging of epoxy resin materials under light, humidity, and heat conditions mainly focuses on artificial accelerated aging. This involves constructing an atmospheric environment using laboratory conditions and adjusting parameters to approximate and accelerate the aging process of epoxy resin materials. Combining the temperature-induced aging accelerated life model (Arrhenius model) and the humidity-induced stress accelerated aging life model (Eyring model), increasing temperature and humidity significantly accelerates the aging process of epoxy resin materials. Therefore, this method can quickly assess their aging resistance performance in a short time. Furthermore, artificial accelerated aging methods can also achieve multi-factor coupled environmental simulation. Current artificial accelerated aging techniques mainly simulate complex outdoor climates under conditions below 100℃ and relative humidity below 98%, and the aging time is often as long as 40 days, which is too time-consuming and inefficient. To tighten the aging conditions, there is an urgent need to develop a technique that increases temperature and humidity. Developing a novel accelerated coupled aging test device for epoxy resin used in reactors under conditions of high temperature and humidity, precise control of oxygen content, and exposure to artificial light sources is of great significance. This device can effectively reflect the impact of various aging stress couplings on the deterioration of material properties under complex outdoor climates. At the same time, by adopting a damp heat aging life model, it can achieve efficient and accurate assessment of the service life of epoxy resin used in reactors.

[0047] This invention proposes an aging test device for epoxy resin.

[0048] Please see Figures 1 to 8In one embodiment of this utility model, the epoxy resin aging test device includes a sealed chamber 10, a gas supply module 20, a temperature module 30, a humidity module 40, a light exposure module 70, and a vacuum module 50. The sealed chamber 10 contains an aging chamber 11 for placing the epoxy resin. The gas supply module 20 includes an oxygen supply structure 21, an inert gas supply structure 22, and an air supply structure 23, all of which are connected to the aging chamber 11. The temperature module 30 includes a heater 31, a temperature sensor 32, and a temperature controller 33. The temperature sensor 32 and the heater 31 are electrically connected to the temperature controller 33 and are both located within the aging chamber 11. The temperature controller 33 is located within the sealed chamber 10. The sealing box 10 is located outside the aging chamber 11. The humidity module 40 includes a humidity regulator 41, a humidity sensor 42, and a humidity controller 43. The humidity regulator 41 and the humidity sensor 42 are both electrically connected to the humidity controller 43 and are both located inside the aging chamber 11. The humidity controller 43 is located outside the sealing box 10. The illumination module 70 includes a light source 71 and a light source controller 72. The light source 71 and the light source controller 72 are electrically connected. The light source 71 is located at the top inside the aging chamber 11, and the light source controller 72 is located outside the sealing box 10. The vacuum module 50 includes a vacuum pump 51, which is connected to the aging chamber 11. The heater 31, temperature sensor 32, humidity regulator 41, humidity sensor 42, and light source 71 are distributed in different positions inside the aging chamber 11.

[0049] The technical solution of this utility model involves placing epoxy resin in an aging chamber 11 within a sealed box 10, and then using a vacuum pump 51 to evacuate the aging chamber 11, reducing the pressure inside, for example, to below 10⁻² Pa, to ensure the exhaust of gas from the aging chamber 11. High-purity air is then introduced into the aging chamber 11 through an air supply structure 23, with a nitrogen-to-oxygen ratio of 4:1, to simulate natural air conditions. Inert gas is then introduced into the aging chamber 11 through an inert gas supply structure 22. This inert gas further increases the pressure within the aging chamber 11, allowing water molecules to remain liquid even at 100°C to 120°C, thus ensuring that the humidity within the aging chamber 11 reaches nearly 100%, thereby simulating a high-humidity aging environment.

[0050] During the aging process of epoxy resin, the heater 31 heats the aging chamber 11, raising the temperature inside to 100°C to 120°C to simulate a high-temperature aging environment. A temperature sensor 32 is installed inside the aging chamber 11, and a temperature controller 33 is located outside the sealed enclosure 10. The temperature sensor 32 collects temperature information from the aging chamber 11, and the temperature controller 33 controls the heater 31 to heat the aging chamber 11 based on this information, ensuring the temperature inside remains consistently between 100°C and 120°C, thus stably simulating a high-temperature aging environment.

[0051] When the temperature inside the aging chamber 11 rises to 100℃ to 120℃, the humidity inside the aging chamber 11 is adjusted by a humidity control component to bring the humidity within the aging chamber 11 to a preset humidity range, thereby simulating a high-humidity aging environment. Furthermore, a humidity sensor 42 is installed inside the aging chamber 11, and a humidity controller 43 is installed outside the sealed box 10. The humidity sensor 42 collects humidity information from inside the aging chamber 11, and the humidity controller 43 controls the humidity regulator 41 to adjust the humidity inside the aging chamber 11 based on the humidity information collected by the humidity sensor 42, so that the humidity inside the aging chamber 11 can always be maintained within the preset humidity range, thus stably simulating a high-humidity aging environment.

[0052] Furthermore, the light source 71, located at the top of the aging chamber 11, can irradiate the chamber relatively evenly, ensuring that the chamber is always under strong light, thus simulating the aging environment of strong light within the chamber. The light source controller 72 can control the start / stop of the light source 71 and adjust its brightness. Since the epoxy resin reacts with oxygen in the aging chamber 11 during aging, consuming oxygen, this aging test device can continuously replenish oxygen in the aging chamber 11 through the oxygen supply structure 21, maintaining a nitrogen-to-oxygen ratio of 4:1, thereby continuously simulating natural air and ensuring the stability of the simulation.

[0053] The epoxy resin aging test device provided by this utility model integrates a sealed chamber 10, an air supply module 20, a temperature module 30, a humidity module 40, a light exposure module 70, and a vacuum module 50. Through the cooperation between multiple modules, it can simulate the aging environment of strong light, high humidity, high temperature, and air exposure, so as to accurately study the aging law and performance changes of epoxy resin, thereby determining the service life of epoxy resin.

[0054] It should be noted that the interaction between heater 31, temperature sensor 32 and temperature controller 33, the interaction between humidity sensor 42, humidity controller 43 and humidity regulator 41, and the interaction between light source controller 72 and light source 71 can all adopt existing technologies.

[0055] Furthermore, the humidity regulator 41 includes a humidifier 411 and a dehumidifier 412. Both the dehumidifier 412 and the humidifier 411 are electrically connected to the humidity controller 43, and the interaction between the humidifier 411 and the dehumidifier 412 and the humidity controller 43 adopts existing technology.

[0056] In one embodiment of this utility model, the oxygen supply structure 21 includes a first vent pipe 211 and an oxygen cylinder 212, which stores oxygen and is connected to the aging chamber 11 through the first vent pipe 211; the inert gas supply structure 22 includes a second vent pipe 221 and an inert gas cylinder 222, which stores inert gas and is connected to the aging chamber 11 through the second vent pipe 221; the air supply structure 23 includes a third vent pipe 231 and an air cylinder 232, which stores high-purity air and is connected to the aging chamber 11 through the third vent pipe 231; wherein, a solenoid valve 24 is provided on the first vent pipe 211, the second vent pipe 221, and the third vent pipe 231.

[0057] Specifically, oxygen cylinder 212 is directly connected to aging chamber 11 via first vent pipe 211 to supply oxygen to aging chamber 11; inert gas cylinder 222 is directly connected to aging chamber 11 via second vent pipe 221 to supply inert gas to aging chamber 11; air cylinder 232 is directly connected to aging chamber 11 via third vent pipe 231 to supply high-purity air to aging chamber 11; solenoid valves 24 are respectively installed on the first vent pipe 211, second vent pipe 221, and third vent pipe 231. Because solenoid valves 24 have a fast response time, the supply of high-purity air, inert gas, and oxygen to aging chamber 11 can be precisely controlled through solenoid valves 24.

[0058] In one embodiment of the present invention, the oxygen supply structure 21 further includes an oxygen sensor 214, a first processor, and an oxygen display screen 213. The oxygen sensor 214 is disposed inside the aging chamber 11, and the oxygen display screen 213 is disposed outside the sealed box 10. The solenoid valve 24 on the first ventilation pipe 211, the first processor, and the oxygen sensor 214 and the oxygen display screen 213 are electrically connected.

[0059] Specifically, an oxygen sensor 214 is placed inside the aging chamber 11, continuously collecting oxygen concentration information within the chamber. The electrical signal from the oxygen sensor 214 is converted by the first processor and displayed in real-time on the oxygen display screen 213, providing more intuitive data. Furthermore, the first processor is electrically connected to the solenoid valve 24 on the first ventilation pipe 211. Based on the oxygen concentration information collected by the oxygen sensor 214, the first processor controls the solenoid valve 24 on the first ventilation pipe 211, enabling automated control of oxygen replenishment within the aging chamber 11 without operator intervention. This ensures a consistently stable nitrogen-to-oxygen ratio of 4:1 within the aging chamber, making the process simpler and more efficient.

[0060] It should be noted that the first processor is built into the oxygen display screen 213, and the interaction between the oxygen sensor 214, the oxygen display screen 213, the solenoid valve 24 on the first ventilation tube 211 and the first processor all adopt existing technologies.

[0061] In one embodiment of the present invention, the vacuum module 50 further includes a vacuum degree display screen 52, a second processor, and a vacuum gauge 53. The vacuum gauge 53 is disposed inside the aging chamber 11, and the vacuum degree display screen 52 is disposed outside the sealed box 10. Both the vacuum gauge 53 and the vacuum degree display screen 52 are electrically connected to the second processor.

[0062] Specifically, the vacuum gauge 53 is installed inside the aging chamber 11 to collect vacuum information in the aging chamber 11 in real time; the electrical signal of the vacuum gauge 53 is converted by the second processor and then displayed in real time by the vacuum display screen 52, making the data more intuitive.

[0063] Furthermore, the second processor is electrically connected to the vacuum pump 51. By controlling the vacuum pump 51 based on the vacuum information collected by the vacuum gauge 53, the second processor can achieve automated control of evacuation in the aging chamber 11, which is simpler and more efficient.

[0064] Furthermore, the vacuum pump 51 is connected to the aging chamber 11 through a fourth vent pipe 54. A solenoid valve 24 is installed on the fourth vent pipe 54. The solenoid valves 24 on the second vent pipe 221, the third vent pipe 231, and the fourth vent pipe 54 are all electrically connected to the second processor.

[0065] It should be noted that the second processor is built into the vacuum level display screen 52. The interaction between the solenoid valve 24 on the second vent pipe 221, the solenoid valve 24 on the third vent pipe 231, and the solenoid valve 24 on the fourth vent pipe 54 and the second processor all employ existing technologies. Furthermore, the interaction between the vacuum level sensor, the vacuum level display screen 52, the vacuum pump 51, and the second processor all employ existing technologies.

[0066] In one embodiment of the present invention, the temperature module 30 includes a plurality of heaters 31, which are arranged circumferentially around the aging chamber 11.

[0067] Specifically, by placing multiple heaters 31 inside the aging chamber 11 and circumferentially spaced around the aging chamber 11, the aging chamber 11 can be heated uniformly from multiple directions, resulting in a more uniform heating effect.

[0068] In one embodiment of the present invention, the temperature module 30 further includes a temperature display screen, which is disposed outside the sealed box 10 and electrically connected to the temperature controller 33; the humidity module 40 further includes a humidity display screen, which is disposed outside the sealed box 10 and electrically connected to the humidity controller 43.

[0069] Specifically, a temperature display screen is installed outside the sealed chamber 10 and electrically connected to the temperature controller 33, displaying the temperature inside the aging chamber 11 in real time; a humidity display screen is also installed outside the sealed chamber 10 and electrically connected to the humidity controller 43, displaying the humidity inside the aging chamber 11 in real time. Researchers can simultaneously read the temperature and humidity values ​​without opening the chamber, quickly determine whether the aging environment is within the set range, and adjust the heater 31 or humidity control structure in a timely manner to ensure the continuity and data consistency of long-term aging tests, while reducing temperature and humidity disturbances caused by opening the chamber, thus improving testing efficiency and result reliability.

[0070] Furthermore, the experimenter can control the temperature display screen, which, through a temperature controller 33 electrically connected to it, controls the heater 31, thereby regulating the temperature within the aging chamber 11. Temperature control is simple and convenient. Additionally, the experimenter can control the humidity display screen, which, through a humidity controller 43 electrically connected to it, controls the humidifier 411 and dehumidifier 412, thereby regulating the humidity within the aging chamber 11. Humidity control is also simple and convenient.

[0071] It should be noted that the interaction between the temperature display screen and the temperature controller 33, as well as the interaction between the humidity display screen and the humidity controller 43, both utilize existing technologies. The temperature and humidity displays can be touch-screen displays, as is currently known.

[0072] In one embodiment of this utility model, the light source 71 is a xenon arc lamp.

[0073] Specifically, using a xenon arc lamp as the light source 71 can generate continuous strong light with a spectral energy distribution close to natural sunlight in the aging chamber 11, so that the epoxy resin is subjected to light aging effects consistent with the outdoor environment during the experiment, which significantly improves the reference value of the experimental results for extrapolating the service life; at the same time, the xenon arc lamp has high luminous intensity and stable output, and can maintain light intensity without decay under long-term continuous operation, ensuring the continuity and repeatability of light aging conditions.

[0074] In one embodiment of the present invention, the aging test device further includes a monitoring module 60, which includes a monitoring display screen 61 and a monitoring camera 62. The monitoring camera 62 is disposed inside the aging chamber 11, and the camera end of the monitoring camera 62 faces the epoxy resin inside the aging chamber 11. The monitoring display screen 61 is disposed outside the sealed box 10, and the monitoring camera 62 is electrically connected to the monitoring display screen 61.

[0075] Specifically, the monitoring camera 62 is installed at the top inside the aging chamber 11. The epoxy resin placed in the aging chamber 11 can be observed and monitored through the camera. The changes of the epoxy resin can be observed in real time through the monitoring display screen 61, which makes it easier to study the aging law and performance changes of the epoxy resin, thereby determining the service life of the epoxy resin.

[0076] In one embodiment of the present invention, the sealed box 10 includes an outer shell 12 and an inner liner 13. The outer shell 12 is fitted over the inner liner 13, and an insulation layer 15 is provided between the outer shell 12 and the inner liner 13. An aging chamber 11 is formed inside the inner liner 13. A placement plate 14 for placing epoxy resin is provided in the aging chamber 11 along the horizontal direction. The placement plate 14 and the top and bottom walls of the aging chamber 11 are spaced apart.

[0077] Specifically, the outer shell 12 is fitted over the inner liner 13, forming a heat-insulating gap between them. The heat-insulating gap is filled with an insulation layer 15, which reduces heat loss and lowers the surface temperature of the outer shell 12. The inner liner 13 forms the aging chamber 11. A placement plate 14 is horizontally fixed in the center of the aging chamber 11, maintaining a distance from both the top and bottom walls. After the epoxy resin is placed on the placement plate 14, its upper and lower surfaces are simultaneously exposed to the environment created by the temperature module 30, humidity module 40, and light module 70, achieving uniform heating, humidity, and light exposure. This structure improves the uniformity of temperature, humidity, and light exposure while avoiding localized overheating or overhumidification caused by direct contact between the epoxy resin and the chamber walls, thereby enhancing the reproducibility and data reliability of the aging test.

[0078] In one embodiment of this utility model, the inner liner 13 is a stainless steel inner liner 13, and the placement plate 14 is a stainless steel perforated plate.

[0079] Specifically, the stainless steel inner liner 13 forms the aging chamber 11; the placement plate 14 is a stainless steel perforated plate and is horizontally fixed in the middle of the inner liner 13. The stainless steel inner liner 13 is corrosion resistant, easy to clean, and does not deform under long-term high temperature and high humidity conditions; the perforated placement plate 14 allows airflow to pass through freely, and the upper and lower surfaces of the epoxy resin are simultaneously and evenly heated and humidified, significantly improving the consistency of aging conditions.

[0080] In one embodiment of this invention, epoxy resin is placed in the aging chamber 11 within a sealed box 10. A vacuum pump 51 is then used to evacuate the aging chamber 11, reducing the pressure inside to below 10⁻² Pa to ensure complete removal of gas. High-purity air (nitrogen to oxygen ratio of 4:1) is then introduced into the aging chamber 11 through an air supply structure 23, raising the pressure to 1.01 × 10⁵ Pa to simulate natural air. Finally, inert gas is introduced into the aging chamber 11 through an inert gas supply structure 22, raising the pressure to 2.02 × 10⁵ Pa.

[0081] The above description is merely an exemplary embodiment of the present utility model and does not limit the scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the protection scope of the present utility model.

Claims

1. An aging test apparatus for epoxy resin, characterized in that, The aging test apparatus includes: A sealed box, wherein an aging chamber for placing the epoxy resin is formed inside the sealed box; The gas supply module includes an oxygen supply structure, an inert gas supply structure, and an air supply structure, all of which are connected to the aging chamber. A temperature module, comprising a heater, a temperature sensor, and a temperature controller, wherein the temperature sensor and the heater are both electrically connected to the temperature controller and are both disposed inside the aging chamber, and the temperature controller is disposed outside the sealed box; A humidity module, comprising a humidity regulator, a humidity sensor, and a humidity controller, wherein the humidity regulator and the humidity sensor are both electrically connected to the humidity controller and are both disposed inside the aging chamber, and the humidity controller is disposed outside the sealed box; The illumination module includes a light source and a light source controller, which are electrically connected. The light source is located at the top of the aging chamber, and the light source controller is located outside the sealed box. A vacuum module, the vacuum module including a vacuum pump, the vacuum pump being connected to the aging chamber; The heater, the temperature sensor, the humidity regulator, the humidity sensor, and the light source are distributed in different positions within the aging chamber.

2. The aging test apparatus for epoxy resin as described in claim 1, characterized in that, The oxygen supply structure includes a first vent pipe and an oxygen cylinder. The oxygen cylinder stores oxygen and is connected to the aging chamber through the first vent pipe. The inert gas supply structure includes a second vent pipe and an inert gas bottle. The inert gas bottle stores inert gas and is connected to the aging chamber through the second vent pipe. The air supply structure includes a third vent pipe and an air bottle. The air bottle stores high-purity air and is connected to the aging chamber through the third vent pipe. Solenoid valves are installed on the first vent pipe, the second vent pipe, and the third vent pipe.

3. The aging test apparatus for epoxy resin as described in claim 2, characterized in that, The oxygen supply structure also includes an oxygen sensor, a first processor, and an oxygen display screen. The oxygen sensor is located inside the aging chamber, and the oxygen display screen is located outside the sealed box. The solenoid valve, the oxygen sensor, and the oxygen display screen on the first ventilation pipe are all electrically connected to the first processor.

4. The aging test apparatus for epoxy resin as described in claim 3, characterized in that, The vacuum module also includes a vacuum level display screen, a second processor, and a vacuum gauge. The vacuum gauge is located inside the aging chamber, and the vacuum level display screen is located outside the sealed box. The vacuum pump, vacuum gauge, and vacuum level display screen are all electrically connected to the second processor. The vacuum pump is connected to the aging chamber through a fourth vent pipe. The solenoid valves on the second vent pipe, the third vent pipe, and the fourth vent pipe are all electrically connected to the second processor.

5. The aging test apparatus for epoxy resin as described in claim 1, characterized in that, The temperature module includes a plurality of heaters, which are arranged circumferentially around the aging chamber.

6. The aging test apparatus for epoxy resin as described in claim 1, characterized in that, The temperature module also includes a temperature display screen, which is located outside the sealed box and electrically connected to the temperature controller; The humidity module also includes a humidity display screen, which is located outside the sealed box and electrically connected to the humidity controller.

7. The aging test apparatus for epoxy resin as described in claim 1, characterized in that, The light source is a xenon arc lamp.

8. The aging test apparatus for epoxy resin as described in claim 1, characterized in that, The aging test apparatus further includes a monitoring module, which includes a monitoring display screen and a monitoring camera. The monitoring camera is located inside the aging chamber, with its camera end facing the epoxy resin inside the aging chamber. The monitoring display screen is located outside the sealed box, and the monitoring camera is electrically connected to the monitoring display screen.

9. The aging test apparatus for epoxy resin as described in claim 1, characterized in that, The sealed box includes an outer shell and an inner liner. The outer shell is fitted over the inner liner, and an insulation layer is provided between the outer shell and the inner liner. The aging chamber is formed inside the inner liner. A placement plate for placing the epoxy resin is arranged horizontally inside the aging chamber. The placement plate and the top and bottom walls of the aging chamber are spaced apart.

10. The aging test apparatus for epoxy resin as described in claim 9, characterized in that, The inner liner is made of stainless steel, and the placement plate is made of stainless steel perforated plate.

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