Xenon lamp aging test device

Abstract

The present invention discloses a xenon lamp aging test device, which relates to the field of optoelectronic technology. The problem to be solved is to adopt a new top vortex shell air duct type for internal and external air circulation, and adjust the wind speed and flow rate through the speed of the variable frequency motor. The wind speed inhales new cold air from outside the box, and automatically adjusts the opening size of the air regulating plate between the air inlet and the air outlet. The wind speed flows from the bottom of the box evenly from the sample surface (blackboard thermometer, black mark thermometer) to the vortex shell wind wheel suction port, and is partially discharged and partially circulated from the air outlet, and the process is repeated to achieve the control of the blackboard temperature and the temperature and humidity in the box. The main technical scheme is: central controller; box; wind wheel mechanism; rotating device; light source control device; sample fixture; spray cooling device; blackboard thermometer; black mark thermometer; and temperature and humidity detection device.

Description

Technical Field

[0001] The invention relates to the field of optoelectronic technology, and in particular to a xenon lamp aging test device. Background Art

[0002] Materials used in automotive interiors, plastics, paints, coatings, electronic meters, textiles, printing and dyeing, dyes, decorative materials, wooden floors, helmets, leather, petrochemicals, rubber, etc. need to undergo artificial aging tests under simulated sunlight, as well as lightfastness, weatherfastness, lightfastness, and combined colorfastness tests. Since aging factors are mainly caused by sunlight exposure and environmental temperature and humidity, xenon light aging test chambers, as artificial accelerated aging tests, are widely used in the testing and evaluation of material aging.

[0003] The xenon lamp aging test chamber in the prior art uses compressor refrigeration in terms of temperature control technology, and the air in the chamber is fully enclosed. The energy consumption is large, the noise is large, the technology is relatively backward, the adjusted blackboard temperature and air temperature are the same, and cannot be controlled separately and independently; in terms of the correctness of the light filter, the installation of the light wave filter in the prior art is unqualified, the filter is a single-layer glass, and the wavelength of the filtered light is inaccurate; in the lamp cooling method, the lamp cooling water in the prior art does not meet the standard, the cooling circulating water directly flows through the chiller and the single-layer glass and the surface of the lamp, and no isolation and separation measures are taken, so that the lamp is easy to form dirt, the irradiance does not meet the standard, and the service life is short; in terms of the installation accuracy of the black label thermometer on the blackboard, the installation of the black label thermometer on the blackboard is unqualified: the blackboard and the black label thermometer are installed in the drum circle without the same station as the sample fixture, and cannot rotate 360 ​​degrees with the drum, and the measured temperature value is inaccurate; in terms of UV energy point control technology, the UV band control technology is backward: there is only a single UV band control, no UV measurement technology, a high-temperature steam humidification method is used in the humidification method, and only single-sided spraying is used in the spraying method. Therefore, the existing technology fundamentally does not meet the standard test requirements of various xenon lamp aging chambers. Therefore, a xenon lamp aging chamber with leading technology, complete functions, and the ability to simulate different environments by replacing different filters and meeting most standard test requirements is needed. Summary of the invention

[0004] In view of this, an embodiment of the present invention provides a xenon lamp aging test device, the main purpose of which is to adopt a brand-new top vortex shell air duct type internal and external air circulation, and adjust the wind speed and flow rate through the speed of the variable frequency motor. The wind speed draws in new cold air from outside the box, and automatically adjusts the opening size of the air regulating plate between the air inlet and the air outlet, so that the wind speed flows evenly from the bottom of the box body through the sample surface (blackboard thermometer, black mark thermometer) to the vortex shell wind wheel suction port, and is partially discharged and partially circulated from the exhaust port, and repeats a cycle to achieve the control of the blackboard temperature and the temperature and humidity in the box.

[0005] In order to achieve the above object, the present invention mainly provides the following technical solutions:

[0006] The embodiment of the present invention provides a xenon lamp aging test device, comprising:

[0007] Central controller;

[0008] A box body, comprising an air inlet, an air duct box, a humidifying box, an inner tank box, a volute air duct box and an air outlet, wherein the air inlet is connected to the top of the air duct box, the bottom of the air duct box is connected to the humidifying box, a first vent is provided at the bottom of the inner tank box, two second vents are provided at the top of the inner tank box, the humidifying box is connected to the inner tank box through the first vent, the inner tank box is connected to the volute air duct box through the two second vents, the volute air duct box is connected to the air outlet, an air volume regulating output device is installed at the air outlet, the air outlet is respectively connected to the air inlet and the air duct box through the air volume regulating output device, and a heater is installed in the air duct box;

[0009] A wind wheel mechanism is installed in the volute air duct box, and comprises a variable frequency motor and a wind wheel connected to the variable frequency motor, wherein the variable frequency motor is controlled to rotate by a central controller to rotate the wind wheel;

[0010] A rotating device, comprising a speed regulating motor located in the volute air duct box, a gear transmission mechanism connected to the speed regulating motor, and a rotating drum frame connected to the gear transmission mechanism and arranged in the inner tank box;

[0011] A light source control device, comprising a light controller connected to the central controller, a xenon lamp tube assembly vertically arranged at the center of the rotating drum frame, a UV probe arranged in the rotating drum frame and corresponding to the xenon lamp tube assembly, and a collector connected to the UV probe via a wireless optical fiber, wherein the collector is connected to the central controller; the xenon lamp tube assembly comprises an upper lamp holder, a lower lamp holder, a xenon lamp tube mounted on the upper lamp holder, an outer filter mounted between the upper lamp holder and the lower lamp holder and respectively connected to the upper lamp holder and the lower lamp holder, and an inner filter arranged in the outer filter and connected to the upper lamp holder;

[0012] A sample fixture, mounted on the rotating drum frame and corresponding to the position of the lamp tube;

[0013] A spray cooling device, comprising a water tank arranged at the bottom of the box body and below the air duct box, a spray device arranged at the bottom of the box body and below the inner tank box and connected to the water tank, a cooling water pump arranged at the bottom of the box body and below the inner tank box and respectively connected to the water tank and the lower lamp holder, an internal cooling device arranged in the water tank, and an external cooling device arranged outside the box body and connected to the internal cooling device, the water inlet end of the cooling water pump being connected to the water tank, and the water outlet end of the cooling water pump being connected to the lower lamp holder;

[0014] A blackboard thermometer connected to the central controller and installed on the rotating drum frame in the same position as the sample fixture;

[0015] a black mark thermometer connected to the central controller and mounted on the rotating drum frame in the same position as the sample fixture; and

[0016] The temperature and humidity detection device comprises an air temperature sensor and a humidity sensor, wherein the air temperature sensor and the humidity sensor are both installed in the volute air duct box.

[0017] As mentioned above, the air volume regulating output device includes an air valve controller connected to the central controller and an air regulating plate connected to the air valve controller, and the air valve controller adjusts the opening and closing degree of the air regulating plate through the control of the central controller;

[0018] The air outlet is connected to the air inlet and the air duct box respectively through the air regulating plate, and a filter is arranged at the position where the air inlet is connected to the top of the air duct box.

[0019] As mentioned above, an ultrasonic humidifier is arranged in the humidification box.

[0020] As mentioned above, the wind wheel is a suction-type wind wheel.

[0021] As mentioned above, the gear transmission mechanism includes a first gear located in the volute air duct box and connected to the speed regulating motor, a second gear located in the volute air duct box and meshingly connected to the first gear, and a rotating shaft connected to the second gear through a bearing, and the rotating shaft is connected to the rotating drum frame;

[0022] The first gear and the second gear are both bevel gears.

[0023] As mentioned above, the spray device includes a spray water pump, a front nozzle pipe assembly and a back nozzle pipe assembly. The front nozzle pipe assembly includes a front nozzle installed in front of the sample fixture and a front spray solenoid valve connected to the front nozzle pipe. The back nozzle pipe assembly includes a back nozzle installed on the back of the sample fixture and a back spray solenoid valve connected to the back nozzle pipe. The water inlet end of the spray water pump is connected to the water tank, and the water outlet end of the spray water pump is respectively connected to the front spray solenoid valve and the back spray solenoid valve.

[0024] As mentioned above, the internal cooling device is a condensing coil, and the external cooling device is a chiller. The condensing coil is a spiral structure formed by rotating a stainless steel pipe, and the water inlet and outlet ends of the condensing coil are both connected to the chiller.

[0025] As mentioned above, the blackboard thermometer is made of stainless steel, and a black coating is coated on the surface to form a first blackboard. The first temperature sensor is installed at the center of the first blackboard and is connected to the central controller.

[0026] As mentioned above, the black mark thermometer is made of stainless steel, and a black coating is coated on the surface to form a second black board. The second temperature sensor is installed at the center of the back of the second black board and connected to the central controller. The back of the black mark thermometer is fixed on a base made of PVDF.

[0027] As mentioned above, a guide plate is installed at a position corresponding to the rotating drum frame at the first vent at the bottom of the inner tank.

[0028] By means of the above technical solution, the xenon lamp aging test device of the present invention has at least the following advantages:

[0029] 1. The xenon lamp aging test device of the present invention adopts a new top vortex air duct type for internal and external air circulation, and adjusts the wind speed and flow rate through the speed of the variable frequency motor. The wind speed inhales new air from outside the box, and automatically adjusts the opening size of the air regulating plate between the air inlet and the air outlet. The wind speed flows from the bottom of the box evenly from the sample surface (blackboard thermometer, black mark thermometer) to the suction wind wheel inlet, and is partially discharged and partially circulated from the air outlet, and repeats in a cycle to achieve the technology of controlling the blackboard temperature and the temperature and humidity in the box. A heater is installed in the air duct. If the air temperature is insufficient, the heater heats it. If the air temperature is too low, the heater does not heat it and the air regulating plate opens wide. This cycle is repeated to achieve the technology of controlling the temperature in the box.

[0030] 2. The xenon lamp light aging test device of the present invention is provided with the xenon lamp tube assembly including an upper lamp holder, a lower lamp holder, a xenon lamp tube installed on the upper lamp holder, an outer filter installed between the upper lamp holder and the lower lamp holder and connected to the upper lamp holder and the lower lamp holder respectively, and an inner filter arranged in the outer filter and connected to the upper lamp holder, so that the filter is a double-layer inner and outer filter. Different specific glasses can be replaced to simulate different environments and make the wavelength of the filtered light more accurate.

[0031] 3. The xenon lamp aging test device of the present invention separates the cooling water inside the lamp tube from the cooling water of the chiller by means of a cooling water pump disposed at the bottom of the box body, below the inner tank and connected to the water tank and the lower lamp holder respectively, an internal cooling device disposed in the water tank and an external cooling device disposed outside the box body and connected to the internal cooling device. The cooling water of the lamp tube is circulated between the water cooled and lowered in the water tank by a water pump and the lamp tube. The cooling water of the chiller is used to cool the condensing coil. The surface of the condensing coil is cooled by the cooling water of the chiller to achieve a heat exchange effect, so that the cooling water of the lamp tube is kept at a desired temperature.

[0032] 4. The xenon light aging test device of the present invention is provided with a blackboard thermometer, which is connected to the central controller and installed on the rotating drum frame at the same position as the sample fixture; and a black mark thermometer, which is connected to the central controller and installed on the rotating drum frame at the same position as the sample fixture; the blackboard thermometer and the black mark thermometer can rotate 360 ​​degrees with the rotating drum frame, so that the temperature received by the blackboard thermometer and the black mark thermometer is consistent with the sample surface;

[0033] 5. The xenon lamp aging test device of the present invention controls the light controller to adjust the luminous intensity of the xenon lamp tube by setting the central controller to measure the irradiation value of the light energy of the lamp tube fed back by the UV probe; the present invention can select different UV energy points, and the system can give different power values ​​to adjust the lamp tube power, and then cooperate with different filters to simulate different environments;

[0034] 6. The xenon lamp aging test device of the present invention is provided with the spray device including a spray water pump, a front nozzle assembly and a back nozzle assembly, so that the sample can be sprayed frontally and rearwardly, thereby realizing independent control of the spray device.

[0035] 7. The xenon lamp aging test device of the present invention uses a xenon arc lamp whose light source is close to the sunlight spectrum to simulate sunlight irradiation. Different filters are used to simulate light passing through window glass and outdoor sunlight, and the UV bands of 340nm, 420nm, 300-400nm, 280-800nm, etc. can be controlled. The circulating automatic adjustable wind speed system independently and innovatively designed by the present invention can perfectly control the blackboard temperature, black mark temperature, box body temperature, and humidity. The test box is equipped with a spray system to spray the surface and back of the sample material, which can simulate the natural rain environment. The combination of the above multifunctional combinations can simulate the accelerated aging test effect of harsh natural environmental factors on materials.

[0036] 8. The xenon lamp light aging test device of the present invention has reliable performance and complies with American, European and Japanese standards.

[0037] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 The internal structure of a xenon lamp aging test device provided by the embodiment of the present invention is shown in FIG. Figure 1 ;

[0039] Figure 2 This is a schematic diagram of the airflow direction of a xenon lamp aging test device provided by an embodiment of the present invention;

[0040] Figure 3 The internal structure of a xenon lamp aging test device provided by the embodiment of the present invention is shown in FIG. Figure 2 ;

[0041] Figure 4 The internal structure of a xenon lamp aging test device provided by an embodiment of the present invention is shown in FIG. Figure 3 ;

[0042] Figure 5 This is a schematic diagram of the structure of an air regulating plate provided by an embodiment of the present invention;

[0043] Figure 6 is a schematic structural diagram of a lamp tube assembly provided by an embodiment of the present invention;

[0044] Figure 7 is a structural principle diagram of a light source control device provided by an embodiment of the present invention;

[0045] Figure 8 This is a schematic diagram of the structure of a blackboard thermometer provided by an embodiment of the present invention;

[0046] Fig. 9It is a schematic diagram of the structure of a black label thermometer provided by an embodiment of the present invention;

[0047] Fig.10 This is a working principle diagram of a central controller provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0048] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the specific implementation method, structure, characteristics and effects of the present invention application are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0049] like Figure 1-Figure 10 As shown, an embodiment of the present invention provides a xenon light aging test device, which includes: a central controller 10, a box 20, a wind wheel mechanism 30, a rotating device 40, a light source control device 50, a sample fixture 60, a spray cooling device 70, a blackboard thermometer 80, a black mark thermometer 90 and a temperature and humidity detection device 100, wherein:

[0050] like Figure 1 , Figure 2 and Figure 5As shown, the box body 20 includes an air inlet 201, an air duct box 202, a humidifying box 203, an inner tank box 204, a volute air duct box 205 and an air outlet 206, wherein the air inlet 201 is connected to the top of the air duct box 202, the bottom of the air duct box 202 is connected to the humidifying box 203, the bottom of the inner tank box 204 is provided with a first vent 2041, the top of the inner tank box 204 is provided with two second vents 2042, the humidifying box 203 is connected to the inner tank box 204 through the first vent 2041, and the inner tank box 204 is connected to the volute air duct box through the two second vents 2042 205 is connected, the volute air duct box 205 is connected with the exhaust port 206, the exhaust port 206 is equipped with an air volume regulating output device 207, the exhaust port 206 is respectively connected with the air inlet 201 and the air duct box 202 through the air volume regulating output device 207, the design of this structure allows new air at ambient temperature to enter from the air inlet 201 and mix with the air in the box body and then flow to the air duct box 202, the humidification box 203, the liner box 204, and the volute air duct box 205 in sequence, and then a part of the mixed air is discharged through the exhaust port 206, and a part of it flows to the air duct box 202 for circulation, so that the box body forms an air flow circulation structure. Specifically, the air inlet 201, the volute air duct box 205 and the air outlet 206 are all located at the top of the box body 20, and the air volume adjustment output device 207 includes a damper controller 2071 connected to the central controller 10 and an air regulating plate 2072 connected to the damper controller 2071, and the air regulating plate 2072 is made of L-shaped stainless steel. The air outlet 206 is connected to the air inlet 201 and the air duct box 202 respectively through the air regulating plate 2072. The design of this structure makes the box body 20 Part of the air in the box 20 is discharged from the exhaust port, and part of it re-enters the air duct box 202 for circulation. The air valve controller 2071 adjusts the opening and closing degree of the air regulating plate 2072 through the control of the central controller 10; the air regulating plate 2072 can be opened to discharge a large amount of air in the box 20 outside the box, and the circulating air volume becomes smaller; the air regulating plate 2072 can be opened to discharge a small amount of air in the box 20 outside the box, the circulating air volume becomes larger, and the air volume discharged outside the box becomes smaller, thereby controlling the air temperature (box temperature) in the box 20. A filter 209 is provided at the position where the air inlet 201 is connected to the top of the air duct box 202. The filter 209 filters the new air coming in from the air inlet 201, effectively ensuring the purity of the flowing air in the box 20. A heater 208 is installed in the air duct box 202. When the air temperature in the box 20 is insufficient, the heater 208 needs to be heated. When the air temperature in the box 20 is too low, the heater 208 does not heat.

[0051] like Figure 1As shown, the wind wheel mechanism 30 is installed in the volute air duct box 205, and includes a variable frequency motor 301 and a wind wheel 302 connected to the variable frequency motor 301. The variable frequency motor 301 is controlled to rotate by the central controller 10 to rotate the wind wheel 302; specifically, the wind wheel 302 is a suction wind wheel, and the variable frequency motor 301 adopts a frequency converter to connect the motor to adjust and control the speed. The variable frequency motor 301 is controlled to rotate by the central controller 10 to drive the suction wind wheel to work, while sucking the external new air into the box 20 through the air inlet 201 to mix with the internal air, and at the same time sucking and discharging the mixed air in the box 20 upward, and the discharged mixed air is regulated by the air regulating plate and partially discharged outside the box 20, and partially sucked into the air duct box 202 to circulate in the box 20, so as to control the circulating wind speed in the box 20, thereby controlling the blackboard temperature and the black mark temperature. When the wind speed is higher, the blackboard temperature and the black mark temperature are lower, and when the wind speed is lower, the blackboard temperature and the black mark temperature are higher.

[0052] like Figure 1 , Figure 2 and Figure 4 As shown, the rotating device 40 includes a speed regulating motor 401 located in the volute air duct box 205, a gear transmission mechanism 402 connected to the speed regulating motor 401, and a rotating drum frame 403 connected to the gear transmission mechanism 402 and arranged in the inner tank box 204; the gear transmission mechanism 402 includes a first gear 4021 located in the volute air duct box 205 and connected to the speed regulating motor 401, a second gear 4022 located in the volute air duct box 205 and meshingly connected to the first gear 4021, and a shaft 4024 connected to the second gear 4022 through a bearing 4023, and the shaft 4024 is connected to the rotating drum frame 403, wherein the first gear 4021 and the second gear 4022 are both bevel gears.

[0053] like Figure 6 and Figure 7As shown, the light source control device 50 includes a light controller 501 connected to the central controller 10, a lamp tube assembly 502 vertically arranged at the center of the rotating drum frame 403, a UV probe 503 arranged in the rotating drum frame 403 and corresponding to the lamp tube assembly 502, and a collector 505 connected to the UV probe 503 through a wireless optical fiber 504, and the collector 505 is connected to the central controller 10; the lamp tube assembly 502 includes an upper lamp holder 5021, a lower lamp holder 5022, a xenon lamp tube 5023 installed on the upper lamp holder 5021, an outer filter 5024 installed between the upper lamp holder 5021 and the lower lamp holder 5022 and connected to the upper lamp holder 5021 and the lower lamp holder 5022 respectively, and an inner filter 5025 arranged in the outer filter 5024 and connected to the upper lamp holder 5021; the central controller The controller 10 controls the speed regulating motor 401 to rotate so that the gear transmission mechanism 402 moves, thereby causing the rotating drum frame 403 to rotate 360 ​​degrees around the center of the xenon lamp tube 5023; the collector 505 receives the light energy of the xenon lamp tube 5023 measured and fed back by the UV probe 503 and transmits it to the central controller 10, and the central controller 10 calculates the UV irradiance according to the light energy and controls the light controller 501 to adjust the luminous intensity of the xenon lamp tube 5023; specifically, the xenon lamp tube 5023 is a tube that emits light close to the solar spectrum, and the light emitted by the xenon lamp tube 5023 can simulate the aging ultraviolet light irradiated to the ground after double filtration by the inner filter 5025 and the outer filter 5024. Different combinations of filters can filter different spectra. By replacing different specific filters, different environments can be simulated, and the wavelength of the filtered light can also be made more accurate.

[0054] like Figure 3 As shown, the sample fixture 60 is installed on the rotating drum frame 403 and corresponds to the position of the xenon lamp tube 5023; the test sample faces the xenon lamp tube 5023 and can be evenly irradiated with light as the rotating drum frame 403 rotates around the center of the xenon lamp tube 5023.

[0055] like Figures 2 to 4As shown, the spray cooling device 70 includes a water tank 701 arranged at the bottom of the box body 20 and below the air duct box 202, a spray device 702 arranged at the bottom of the box body 20 below the inner tank 202 and connected to the water tank 701, a cooling water pump 703 arranged at the bottom of the box body 20 below the inner tank 204 and respectively connected to the water tank 701 and the upper lamp holder 5021, an internal cooling device 704 arranged in the water tank 701, and an external cooling device 705 arranged outside the box body 20 and connected to the internal cooling device 704, the water inlet end of the cooling water pump 703 is connected to the water tank 701, and the water outlet end of the cooling water pump 703 is connected to the lower lamp holder 5022; the spray device 702 includes a spray water pump 7021, a front nozzle assembly 7022 and a back nozzle assembly 703. 023, the front spray pipe assembly 7022 includes a front spray pipe 70221 installed in front of the sample fixture 60 and a front spray solenoid valve 70222 connected to the front spray pipe 70221, the back spray pipe assembly 7023 includes a back spray pipe 70231 installed on the back of the sample fixture 60 and a back spray solenoid valve 70232 connected to the back spray pipe 70231, the water inlet end of the spray water pump 7021 is connected to the water tank 701, and the water outlet end of the spray water pump 7021 is respectively connected to the front spray solenoid valve 70221 and the back spray solenoid valve 70232, the structural design of the front spray assembly 7022 and the back spray assembly 7023 enables the sample to realize independent control of the environment of a single front spray or back spray, and to realize simultaneous control of the front spray and back spray, and after startup, water can be sprayed on the surface and back of the sample to simulate the condensation effect and the natural rain environment. The internal cooling device 704 is a condensing coil, and the external cooling device 705 is a chiller. The condensing coil is a spiral structure formed by rotating a stainless steel pipe. The water inlet and outlet ends of the condensing coil are connected to the chiller. The design of this structure separates the cooling water of the xenon lamp tube 5023 from the cooling water of the chiller. After the xenon lamp tube 5023 is lit, the cooling water pump 703 works at the same time, and the water cooled and lowered in the water tank 701 is circulated with the xenon lamp tube 5023 through the cooling water pump 703, that is, the cooled water flows through the surface of the xenon lamp tube 5023 to cool the xenon lamp tube 5023. The water in the chiller and the water in the water tank 701 are separated and not mixed. The cooling water of the chiller is used to cool the condensing coil, and the surface of the condensing coil is cooled by the cooling water of the chiller. The water in the water tank 701 is cooled to a set temperature according to the principle of heat exchange, so that the cooling water of the xenon lamp tube 5023 is maintained at a required temperature.

[0056] like Figure 8As shown, a blackboard thermometer 80 is connected to the central controller 10 and is installed on the rotating drum frame 403 at the same position as the sample fixture 60; the blackboard thermometer 80 is made of stainless steel, and a black coating is coated on the surface to form a first blackboard 801. A first temperature sensor 802 is installed at the center of the first blackboard 801 and is connected to the central controller 10. The first temperature sensor 802 is connected to the central controller 10 through a first sensor line 803. The first sensor line 803 passes through the inner tank 204 from the center hole of the rotating shaft 4024 and is connected to the central controller 10. In order to facilitate the installation of the blackboard thermometer 80, the blackboard thermometer 80 is installed on the first mounting bracket 803, and the first mounting bracket 803 is installed on the rotating drum frame 403. The blackboard thermometer 80 is installed on the rotating drum frame 403 through the first mounting bracket 803.

[0057] like Fig. 9 As shown, the black mark thermometer 90 is connected to the central controller 10 and is installed on the rotating drum frame 403 at the same position as the sample fixture 60; the black mark thermometer 90 is made of stainless steel, and the surface is coated with a black coating to form a second blackboard 901, and the second temperature sensor 902 is installed at the center of the back of the second blackboard 901 and connected to the central controller 10. The back of the black mark thermometer 90 is fixed on a base 903 made of PVDF. Specifically, the second temperature sensor 902 is connected to the central controller 10 through a second sensor line 904, and the second sensor line 904 passes through the inner tank 204 from the center hole of the rotating shaft 4024 and is connected to the central controller 10. In order to facilitate the installation of the black mark thermometer 90, the base 903 is installed on the second mounting bracket 904, and the second mounting bracket 904 is installed on the rotating drum frame 403, and the black mark thermometer 90 is installed on the rotating drum frame 403 through the second mounting bracket 904.

[0058] like Figure 3 As shown, the temperature and humidity detection device 100 includes an air temperature sensor 1001 connected to the central controller 10 and a humidity sensor 1002 connected to the central controller 10, and the air temperature sensor 1001 and the humidity sensor are both installed in the volute air duct box 205. An ultrasonic humidifier 2031 is arranged in the humidifying box 203, and the humidifying box 203 uses an ultrasonic humidification method to produce humidity. The humidifying box 203 is connected to the air duct box 202 and the inner tank box 204, and the inner tank box 204 is connected to the volute air duct box 205. The humidifying box 203 uses an ultrasonic humidification method to produce humidity in the box body 10, and the humidification amount in the entire box body 20 is collected by the humidity sensor 1002 and fed back to the central controller.

[0059] The xenon lamp aging test device of the embodiment of the present invention is a xenon arc lamp whose light source is close to the sunlight spectrum to simulate the irradiation of sunlight, and different filters are used to simulate the light passing through the window glass and outdoor sunlight, which can control the UV bands of 340nm, 420nm, 300-400nm, 280-800nm, etc., and then adopts a new vortex shell air duct to suck and exhaust air, and the exhaust port is equipped with an air regulating plate device, and the opening size of the air plate is adjusted by frequency conversion technology to discharge the air in the box out of the box and inhale new air from the air inlet, and the designed cyclic automatic adjustable wind speed system, so as to achieve the control of the temperature in the box in a cycle, and the air duct is equipped with a heater, and the heater is heated when the air temperature is insufficient, and the air temperature is too low, and the heater is not heated and the arc of the air regulating plate is opened, which can perfectly control the blackboard temperature, black mark temperature, box temperature, and humidity. A spray device is installed in the box to spray the surface and back of the sample material, which can simulate the natural rain environment, and the combination of the above multi-functional combination can simulate the accelerated aging test effect of the material by the harsh natural environment factors.

[0060] Further, such as Figure 3 As shown, a guide plate 2043 is installed at the first vent 2041 at the bottom of the inner tank box 204 at a position corresponding to the rotating drum frame 403. After the wind wheel mechanism 30 is started, the airflow enters the inner tank box 204 from the humidification box 203 through the first vent 2041. The guide plate 2043 serves as a wind flow guide to make the airflow flow upward and be sucked into the volute air duct box 205 by the suction wind wheel 302 and then discharged from the exhaust port 206.

[0061] Further, such as Figure 6 As shown, the lamp tube assembly 502 also includes a lamp holder 5026, and the lamp holder 5026 is connected to the lower lamp holder 5022. In order to improve the sealing performance of the connection between components, the lamp tube assembly 502 also includes a water-proof gasket 5027, and the water-proof gasket is installed between the lower lamp holder 5022 and the lamp holder 5026.

[0062] The embodiment of the present invention adopts a new volute air duct to suck and exhaust air, and the exhaust port is equipped with an air regulating plate device. The opening size of the air plate is adjusted by frequency conversion technology to discharge the air in the box out of the box and suck new air from the air inlet. A heater is installed in the air duct. If the air temperature is insufficient, the heater heats it. If the air temperature is too low, the heater does not heat it and the air regulating plate opens wide. This cycle is repeated to achieve the temperature control technology in the box. The present invention sets a blackboard thermometer, which is connected to the central controller and installed on the rotating drum frame at the same position as the sample fixture; and sets a black mark thermometer, which is connected to the central controller and installed on the rotating drum frame at the same position as the sample fixture; the blackboard thermometer and the black mark thermometer can rotate 360 ​​degrees with the rotating drum frame, so that the temperature received by the blackboard thermometer and the black mark thermometer is consistent with the sample surface. The xenon light aging test box simulates the irradiation of sunlight by a xenon arc lamp whose light source is close to the sunlight spectrum. Different filters are used to simulate the light passing through the window glass and outdoor sunlight. It can control UV bands of 340nm, 420nm, 300-400nm, 280-800nm, etc. The circulating automatic adjustable wind speed system independently designed by our company can perfectly control the blackboard temperature, black mark temperature, box temperature and humidity. The test chamber is equipped with a spray system to spray the surface and back of the sample material, which can simulate the natural rain environment. The combination of the above multi-functional combinations can simulate the accelerated aging test effect of harsh natural environmental factors on the material. The xenon lamp aging test chamber developed by our company has reliable performance and meets American, European and Japanese standards.

[0063] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A xenon lamp aging test device, characterized in that: include: Central controller; A box body, comprising an air inlet, an air duct box, a humidifying box, an inner tank box, a volute air duct box and an air outlet, wherein the air inlet is connected to the top of the air duct box, the bottom of the air duct box is connected to the humidifying box, a first vent is provided at the bottom of the inner tank box, two second vents are provided at the top of the inner tank box, the humidifying box is connected to the inner tank box through the first vent, the inner tank box is connected to the volute air duct box through the two second vents, the volute air duct box is connected to the air outlet, an air volume regulating output device is installed at the air outlet, the air outlet is respectively connected to the air inlet and the air duct box through the air volume regulating output device, and a heater is installed in the air duct box; A wind wheel mechanism is installed in the volute air duct box, and comprises a variable frequency motor and a wind wheel connected to the variable frequency motor, wherein the variable frequency motor is controlled to rotate by a central controller to rotate the wind wheel; A rotating device, comprising a speed regulating motor located in the volute air duct box, a gear transmission mechanism connected to the speed regulating motor, and a rotating drum frame connected to the gear transmission mechanism and arranged in the inner tank box; A light source control device, comprising a light controller connected to the central controller, a xenon lamp tube assembly vertically arranged at the center of the rotating drum frame, a UV probe arranged in the rotating drum frame and corresponding to the xenon lamp tube assembly, and a collector connected to the UV probe via a wireless optical fiber, wherein the collector is connected to the central controller; the xenon lamp tube assembly comprises an upper lamp holder, a lower lamp holder, a xenon lamp tube mounted on the upper lamp holder, an outer filter mounted between the upper lamp holder and the lower lamp holder and respectively connected to the upper lamp holder and the lower lamp holder, and an inner filter arranged in the outer filter and connected to the upper lamp holder; A sample fixture, mounted on the rotating drum frame and corresponding to the position of the lamp tube; A spray cooling device, comprising a water tank arranged at the bottom of the box body and below the air duct box, a spray device arranged at the bottom of the box body and below the inner tank box and connected to the water tank, a cooling water pump arranged at the bottom of the box body and below the inner tank box and respectively connected to the water tank and the lower lamp holder, an internal cooling device arranged in the water tank, and an external cooling device arranged outside the box body and connected to the internal cooling device, the water inlet end of the cooling water pump being connected to the water tank, and the water outlet end of the cooling water pump being connected to the lower lamp holder; A blackboard thermometer connected to the central controller and installed on the rotating drum frame in the same position as the sample fixture; a black mark thermometer connected to the central controller and mounted on the rotating drum frame in the same position as the sample fixture; and A temperature and humidity detection device, comprising an air temperature sensor and a humidity sensor, both of which are installed in the volute air duct box; The gear transmission mechanism includes a first gear located in the volute air duct box and connected to the speed regulating motor, a second gear located in the volute air duct box and meshingly connected to the first gear, and a rotating shaft connected to the second gear through a bearing, and the rotating shaft is connected to the rotating drum frame; The first gear and the second gear are both bevel gears; The spray device comprises a spray water pump, a front spray pipe assembly and a back spray pipe assembly, wherein the front spray pipe assembly comprises a front spray pipe installed in front of the sample fixture and a front spray solenoid valve connected to the front spray pipe, and the back spray pipe assembly comprises a back spray pipe installed on the back of the sample fixture and a back spray solenoid valve connected to the back spray pipe, the water inlet end of the spray water pump is connected to the water tank, and the water outlet end of the spray water pump is respectively connected to the front spray solenoid valve and the back spray solenoid valve; The internal cooling device is a condensing coil, and the external cooling device is a water chiller. The condensing coil is a spiral structure formed by rotating a stainless steel pipe, and the water inlet and outlet ends of the condensing coil are both connected to the water chiller.

2. The xenon lamp aging test device according to claim 1, characterized in that: The air volume adjustment output device includes an air valve controller connected to the central controller and an air regulating plate connected to the air valve controller, and the air valve controller adjusts the opening and closing degree of the air regulating plate through the control of the central controller; The air outlet is connected to the air inlet and the air duct box respectively through the air regulating plate, and a filter is arranged at the position where the air inlet is connected to the top of the air duct box.

3. The xenon lamp aging test device according to claim 1, characterized in that: An ultrasonic humidifier is arranged in the humidification box.

4. The xenon lamp aging test device according to claim 1, characterized in that: The wind wheel is a suction wind wheel.

5. The xenon lamp aging test device according to claim 1, characterized in that: The blackboard thermometer is made of stainless steel, and a black coating is coated on the surface to form a first blackboard. The first temperature sensor is installed at the center of the first blackboard and is connected to the central controller.

6. The xenon lamp aging test device according to claim 1, characterized in that: The black mark thermometer is made of stainless steel, and a black coating is coated on the surface to form a second black board. The second temperature sensor is installed at the center of the back of the second black board and is connected to the central controller. The back of the black mark thermometer is fixed on a base made of PVDF, and the base is installed on the rotating drum frame.

7. The xenon lamp aging test device according to claim 1, characterized in that: A guide plate is installed at a position corresponding to the rotating drum frame at the first vent at the bottom of the inner tank.

Images