CN114526935A - Air curtain type aging test device - Google Patents
Air curtain type aging test device Download PDFInfo
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- CN114526935A CN114526935A CN202210154752.8A CN202210154752A CN114526935A CN 114526935 A CN114526935 A CN 114526935A CN 202210154752 A CN202210154752 A CN 202210154752A CN 114526935 A CN114526935 A CN 114526935A
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- 238000012360 testing method Methods 0.000 title claims abstract description 184
- 230000032683 aging Effects 0.000 title claims abstract description 55
- 238000010438 heat treatment Methods 0.000 claims abstract description 24
- 238000001035 drying Methods 0.000 claims abstract description 22
- 238000010257 thawing Methods 0.000 claims abstract description 10
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 4
- 238000001816 cooling Methods 0.000 claims description 6
- 238000007664 blowing Methods 0.000 abstract description 11
- 238000009833 condensation Methods 0.000 abstract description 4
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- 239000013589 supplement Substances 0.000 description 7
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- 238000004891 communication Methods 0.000 description 3
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- 238000007789 sealing Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M99/00—Subject matter not provided for in other groups of this subclass
- G01M99/002—Thermal testing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
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Abstract
The invention relates to an air curtain type aging test device which comprises a box body, a test cabin, a heating device, a refrigerating device, a humidifying device and a drying device, wherein a hatch opening is formed in the front of the test cabin, a first air duct, at least one second air duct and a third air duct which are communicated with the drying device are arranged on the periphery of the test cabin, the first air duct and the second air duct are circulating air ducts, a first air curtain for simulating a test environment is formed at the hatch opening of the first air duct, the third air duct is a direct blowing air duct, dry air output by the drying device is blown out by the third air duct to form a third air curtain for covering the hatch opening and is dissipated outside the box body, the heating device, the refrigerating device and the humidifying device are all arranged in the first air duct, and a heating and defrosting assembly is arranged at the upstream of the refrigerating device. The invention can completely seal the hatch opening without influencing the interaction between the product in the test chamber and the outside. The device has the advantages that the frost condensation during low-temperature testing is avoided, the air curtain fogging during high-humidity testing is also prevented, and the device can smoothly perform aging testing in high-temperature, high-humidity and low-temperature environments.
Description
Technical Field
The invention relates to an air curtain type aging test device which is suitable for the technical field of aging tests of electronic devices.
Background
With the rise of optical communication, digital communication and satellite communication technologies, the electronic industry is a rapidly growing high-precision technology industry, the market share of electronic products is also expanded, and the quality problems of the products are attracted by much attention. The aging test is an essential step in the testing process of electronic products, and is to screen defective products by evaluating the power-on running state and performance indexes of the products in a complex environment, generally, the products are placed in extreme environments such as high temperature, high humidity and low temperature, and the electrical variables, chemical or physical changes and the like generated when the products run in the extreme environments are monitored.
At present, some situations exist in aging tests of electronic products, which need to interact with the outside in the test process, such as for display equipment, projection imaging instruments and the like, the running state of the electronic products needs to be monitored, and pictures need to be sent to the outside in the test process to evaluate the imaging performance of the electronic products; for example, when a production line is formed by matching with a manipulator, the manipulator needs to frequently extend into a test box to unload products. For such situations, the conventional aging device for sealing the test box through the box door cannot be applied.
In patent application No. CN201810421433.2, an air curtain type aging device is disclosed, in which a circulating air curtain is formed at the entrance of a test box through a circulating air duct instead of a box door to close the test box. On one hand, although the refrigeration device is arranged in the device, low-temperature test cannot be smoothly carried out, because the air curtain is continuously lost in the circulation process, and simultaneously, air is continuously sucked from the inner side and the outer side to supplement the gas quantity of the device, when the outermost air curtain sucks external air, water vapor in the external air can enter the test box, at the moment, the refrigeration is started, not only can serious frosting be formed in the test box, but also the air channel can be blocked due to frosting in the circulation air channel, further, because a cold output part of the refrigeration device is arranged in the circulation air channel, the water vapor can be condensed on the cold output part after entering the circulation air channel, and the refrigeration device is damaged; meanwhile, the outmost air curtain sucks the air in the test box, so that the temperature in the box body is lost, the frosting problem and the temperature loss problem both can reduce the range which can be reached by the test environment temperature, and great limitation is brought to the test and analysis of products.
On the other hand, above-mentioned device also can not carry out the humid tropical test, because the outmost wind curtain can follow the outside cold air that inhales, if carry out the humid tropical test in the test box, can make the temperature that sets up the inside and outside both sides of transparent wind curtain between each layer wind curtain have great difference, and the vapor in the test box can form a large amount of water smoke in transparent wind curtain inboard, and then hinders projection, imaging instrument and deliver the box outside with the picture, influences going on smoothly of ageing tests.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides an air curtain type aging test device.
The technical scheme adopted by the invention is as follows: the utility model provides an air curtain type aging test device, the power distribution box comprises a box body, the setting is at the inside test compartment of box, a heating device for heating for the test compartment, a refrigerating plant for the test compartment cooling, a humidification device for the test compartment humidification, a power module for being the dry air is supplied with for aging test device drying device and being used for the product connection power that awaits measuring, the preceding hatch that is used for getting and put the product that awaits measuring of offering of test compartment, the periphery of test compartment is provided with from inside to outside arranges in proper order and is the first wind channel in circulation wind channel, at least one second wind channel.
A first air curtain is formed at the hatch opening of the first air channel, meanwhile, part of air of the first air curtain is dissipated into the test cabin to simulate a test environment inside the test cabin, and the heat output part of the heating device, the cold output part of the refrigerating device and the output end of the humidifying device are all arranged in the first air channel, so that the air in the first air channel is conveniently heated, cooled or humidified inside the test cabin. The refrigerating output component of the refrigerating device is provided with a heating defrosting assembly used for defrosting the refrigerating output component of the refrigerating device on one side of the upstream along the airflow direction, so that the device damage caused by frost condensation is prevented, the stable operation of the refrigerating device is ensured, and the service life of the refrigerating device is prolonged. The second wind channel forms the second air curtain that is used for sealing the hatch in hatch department, all is provided with the air inlet with drying device's output intercommunication in first wind channel and the second wind channel, through letting in dry air in first air curtain, second air curtain, reduces the steam in the inside air.
The aging test device also comprises a third air channel which is arranged outside the second air channel and used for isolating external air, the third air channel is communicated with the output end of the drying device, the dry air output by the drying device is blown out through the third air channel to form a third air curtain covering the front of the hatch and dissipated outside the box body, the third air channel forms a directly-blown third air curtain through the dry air supplied by the drying device at the forefront of the hatch, air is not required to be sucked from the outside to supplement the third air curtain, the invasion of water vapor and cold air in the external air is isolated, and the adverse effect caused by the fact that the water vapor is frosted in a test cabin or the air channel when the aging test device is used for low-temperature test or the internal moisture is condensed on the air curtain when high-temperature high-humidity test is carried out is avoided; meanwhile, the third air curtain does not need to be sucked from the inside to supplement the third air curtain, so that the temperature loss in the test chamber is avoided, and the temperature range which can be reached by the aging test device is enlarged.
Further, between first air curtain and the second air curtain, between two adjacent second air curtains, all be provided with transparent air curtain between second air curtain and the third air curtain, prevent adjacent air curtain mutual interference, all set up the through-hole of the inside and outside both sides of a plurality of intercommunications on every transparent air curtain, make things convenient for the temperature transmission between the adjacent air curtain, reduce the difference in temperature of the inside and outside both sides of transparent air curtain, the inside of every transparent air curtain all inlays and is equipped with the heater strip that is used for heating for transparent air curtain, prevent to congeal fog or frost on the air curtain.
Furthermore, the first air duct is provided with a first air outlet and a first air return opening respectively on the two opposite sides of the hatch opening, the second air duct is provided with a second air outlet and a second air return opening respectively on the two opposite sides of the hatch opening, the third air duct is provided with a third air outlet on one side of the hatch opening, the first air outlet, the second air outlet and the third air outlet are located on the same side of the hatch opening, interference caused by air convection between adjacent air curtains is prevented, and fans are arranged in the first air duct, the second air duct and the third air duct and provide power for air flowing.
Furthermore, the air in the first air duct forms a first air curtain after being blown out through the first air outlet, is recycled and circulated through the first air return opening, and meanwhile, the air dissipated into the test chamber flows around the test chamber to the first air return opening to be circulated, so that the test environment in the test chamber can be conveniently and rapidly changed to reach the standard.
Furthermore, the first air outlet, the second air outlet and the third air outlet are respectively provided with a honeycomb plate for guiding air flow, so that the air flow keeps a complete shape after being blown out from the air outlets, an air curtain is convenient to form, and the first air return port and the second air return port are respectively provided with a screen plate for preventing foreign matters from falling into an air channel from the air return ports to cause air channel blockage.
Furthermore, the width of the first air outlet is smaller than that of the section of the first air channel, the width of the second air outlet is smaller than that of the section of the second air channel, the width of the third air outlet is smaller than that of the section of the third air channel, and the section is perpendicular to the airflow direction in the air channel, so that the volume of the air flowing to the air outlets is compressed, the air pressure is increased, the air spraying speed is further improved, and the air curtain is convenient to form.
Further, the bottom surface in the test compartment is provided with the slip table that is used for loading the product that awaits measuring, and slip table and the bottom surface sliding connection in the test compartment in the front and back direction, slip table have loading and unloading operating condition and test operating condition: when the sliding table is in a loading and unloading working state, the sliding table is far away from the rear wall of the test cabin, and the sliding table extends out of the test cabin from the hatch, so that a person or a mechanical arm can load and unload a product to be tested conveniently; when the sliding table is in a test working state, the sliding table is close to the rear wall of the test cabin, and the sliding table is located inside the test cabin, so that the test is convenient.
Further, the front side of the air outlet of the third air duct is provided with a retractable door for covering the hatch, and the retractable door has a preheating working state and a conventional working state: when the retractable door is in a preheating working state, the test environment begins to be simulated in the test cabin, the retractable door extends and completely covers the hatch, and the environment in the test cabin can quickly reach the test standard conveniently; when the retractable door is in a conventional working state, the environment in the test cabin reaches a test standard, the retractable door is retracted and exposed out of the hatch, and interactive operation inside and outside the test cabin is facilitated.
Furthermore, the air volume of the second air channel and the third air channel is not less than 400CFM, so that the state stability of the air curtain is ensured, the isolation effect of the air curtain is ensured, and the air volume of the first air channel is not less than 800CFM, so that the test environment in the test cabin can reach the standard quickly.
Furthermore, the temperature range of the test environment of the aging experimental device is-65-85 ℃, and the humidity range is 20-98%.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages:
according to the air curtain type aging test device, the drying air is output by the drying device to form the direct-blowing air curtain on the outermost layer, and the hatch of the test cabin is completely sealed on the premise that the interaction between products in the test cabin and the outside is not influenced. On the one hand, the direct-blowing air curtain need not to follow the outside and inhales the quantity of gas that the air supplyed self, with this steam invasion in the isolated outside air, the rethread lets in dry air to the circulation air curtain of inlayer, reduce the steam in the inside air, it is when carrying out the low temperature test to have avoided the aging testing device, steam is in the test chamber or the inside adverse effect that frosts and bring of circulation wind channel, and defrost for refrigerating plant defrosting through setting up the heating defrosting subassembly, ensure that refrigerating plant operates stably, make the low temperature aging testing of carrying on that the aging testing device can be smooth, and simultaneously, because the direct-blowing air curtain also need not to follow inside and induced draft supplyes self, the temperature of test under-deck has also been avoided and has run off, the temperature range that the aging testing device can reach has been enlarged. On the other hand, the cold volume invasion in the outside air has been isolated to the direct-blowing air curtain, and when the ageing tests device carried out humid tropical ageing test, inside high temperature vapor was isolated with outside cold air, has avoided the vapor to condense the water smoke on transparent air curtain to the projection imaging instrument influence that the image caused of delivering, makes the ageing tests device can carry out humid tropical ageing test smoothly.
Drawings
Some specific embodiments of the invention will be described in detail hereinafter, by way of illustration and not limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:
FIG. 1 is a schematic structural diagram of one embodiment of the present invention;
FIG. 2 is a schematic structural view of the transparent curtain in the embodiment of FIG. 1;
wherein the reference numerals are as follows:
1. a box body; 2. a test chamber; 21. a hatch opening; 22. a sliding table; 23. a retractable door; 3. a heating device; 4. a refrigeration device; 5. a humidifying device; 61. a first air duct; 62. a second air duct; 63. a third air duct; 64. a fan; 65. a honeycomb panel; 66. a screen plate; 7. a drying device; 71. an air inlet; 8. heating the defrost assembly; 9. a transparent air curtain; 91. a through hole; 92. heating wires; 10. and a power supply module.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "front", "rear", "inside" and "outside" with respect to the description direction are defined according to the direction in which the burn-in test apparatus is normally used, and specifically, when the burn-in test apparatus is normally used, the direction in which the test chamber hatch faces is "front", otherwise, "rear", the side close to the inside of the test chamber is "inside", and otherwise, "outside"; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Referring to fig. 1-2, the embodiment provides an air curtain type aging test device, which includes a box body 1, a test chamber 2 disposed inside the box body 1, a heating device 3 for heating the test chamber 2, a refrigerating device 4 for cooling the test chamber 2, a humidifying device 5 for humidifying the test chamber 2, a drying device 7 for supplying dry air for the aging test device, and a power module 10 for connecting a power supply to a product to be tested, wherein a hatch 21 for taking and placing the product to be tested is disposed in front of the test chamber 2, a first air duct 61 and at least one second air duct 62 are disposed on the periphery of the test chamber 2 and are circulating air ducts from inside to outside. Specifically, the temperature range of the test environment of the aging experimental device is-65-85 ℃, and the humidity range is 20-98%.
First wind channel 61 forms first air curtain in hatch 21 department, and the partial air escape of first air curtain goes into test cabin 2 simultaneously and is the inside simulation test environment of test cabin 2, and heating device 3's heat output part, refrigerating output part of refrigerating plant 4 and humidification device 5's output all set up in first wind channel 61, makes things convenient for the air in first wind channel 61 to be the inside heating of test cabin 2, cooling or humidification. The heating and defrosting assembly 8 for defrosting the cold output component of the refrigerating device 4 is arranged on one side of the cold output component of the refrigerating device 4 at the upstream along the airflow direction, so that the device damage caused by frost condensation is prevented, the stable operation of the refrigerating device 4 is ensured, and the service life of the refrigerating device is prolonged. The second air duct 62 forms a second air curtain for closing the hatch 21 at the hatch 21, air inlets 71 communicated with the output end of the drying device 7 are arranged in the first air duct 61 and the second air duct 62, and water vapor in the internal air is reduced by introducing dry air into the first air curtain and the second air curtain.
The aging test device further comprises a third air duct 63 which is arranged outside the second air duct 62 and used for isolating external air, the third air duct 63 is communicated with the output end of the drying device 7, the dry air output by the drying device 7 is blown out through the third air duct 63 to form a third air curtain covering the front of the hatch 21 and dissipated to the outside of the box body 1, the third air duct 63 forms a straight-blowing third air curtain through the dry air supplied by the drying device 7 at the forefront of the hatch without sucking air from the outside to supplement the third air curtain, so that the invasion of water vapor and cold air in the external air is isolated, and the adverse effect caused by frosting of the water vapor in the test cabin 2 or the air duct when the aging test device carries out a low-temperature test or the condensation of internal moisture on the air curtain when the aging test device carries out a high-temperature high-humidity test is avoided; meanwhile, the third air curtain does not need to be sucked from the inside to supplement the third air curtain, so that the temperature loss in the test chamber 2 is avoided, and the temperature range which can be reached by the aging test device is enlarged.
In a more preferred embodiment, between first air curtain and the second air curtain, between two adjacent second air curtains, all be provided with transparent air curtain 9 between second air curtain and the third air curtain, prevent that the air curtain mutual interference that adjacent wind channel blew off, all set up the through-hole 91 of the inside and outside both sides of a plurality of intercommunications on every transparent air curtain 9, make things convenient for the temperature transfer between the adjacent air curtain, reduce the difference in temperature of the inside and outside both sides of transparent air curtain, the inside of every transparent air curtain 9 all inlays and is equipped with the heater strip 92 that is used for heating for transparent air curtain 9, further prevent to congeal fog or frost on the air curtain.
In a more preferred embodiment, the first air duct 61 is provided with a first air outlet and a first air return opening at two opposite sides of the hatch 21, the second air duct 62 is provided with a second air outlet and a second air return opening at two opposite sides of the hatch 21, the third air duct 63 is provided with a third air outlet at one side of the hatch 21, the first air outlet, the second air outlet and the third air outlet are located at the same side of the hatch 21, so as to prevent the air convection between the adjacent air curtains from interfering, and fans 64 are disposed in the first air duct 61, the second air duct 62 and the third air duct 63, so as to provide power for the air flow.
In a more preferred embodiment, the air in the first air duct 61 forms a first air curtain after being blown out through the first air outlet, and is recycled into the circulation through the first air return opening, and the air dissipated into the test chamber 2 flows around the test chamber 2 to the first air return opening to enter the circulation, so as to facilitate the rapid change of the test environment in the test chamber 2 to reach the standard.
In a more preferred embodiment, the first air outlet, the second air outlet and the third air outlet are all provided with a honeycomb plate 65 for guiding the air flow, so that the air flow keeps a complete shape after being blown out from the air outlets, the air curtain is convenient to form, and the first air return opening and the second air return opening are all provided with a mesh plate 66 for preventing foreign matters from falling into the air channel from the air return openings to cause air channel blockage.
In a more preferred embodiment, the width of the first air outlet is smaller than the width of the cross section of the first air duct 61, the width of the second air outlet is smaller than the width of the cross section of the second air duct 62, the width of the third air outlet is smaller than the width of the cross section of the third air duct 63, and the cross section is a cross section perpendicular to the direction of air flow in the air duct, so that the volume is compressed when air flows to the air outlets, the air pressure is increased, the speed of air ejection is further increased, and the formation of an air curtain is facilitated.
In a more preferred embodiment, the bottom surface in the test chamber 2 is provided with a slide table 22 for loading products to be tested, the slide table 22 is slidably connected with the bottom surface in the test chamber 2 in the front-rear direction, and the slide table 22 has a loading/unloading operation state and a testing operation state: when the sliding table 22 is in a loading and unloading working state, the sliding table 22 is far away from the rear wall of the test chamber 2, and the sliding table 22 extends out of the test chamber 2 from the hatch 21, so that a person or a mechanical arm can load and unload a product to be tested conveniently; when the sliding table 22 is in a test working state, the sliding table 22 is close to the rear wall of the test chamber 2, and the sliding table 22 is located inside the test chamber 2, so that the test is convenient.
In a more preferred embodiment, the front side of the air outlet of the third air duct 63 is provided with a retractable door 23 for covering the hatch 21, the retractable door 23 having a preheating operation state and a normal operation state: when the retractable door 23 is in a preheating working state, the test environment is simulated in the test cabin 2, the retractable door 23 extends and completely covers the hatch 21, and the environment in the test cabin 2 can conveniently and quickly reach the test standard; when the retractable door 23 is in a normal working state, the environment in the test chamber 2 reaches the test standard, and the retractable door 23 is retracted and exposed out of the hatch 21, so that interactive operation inside and outside the test chamber 2 is facilitated.
In a more preferred embodiment, the air flow rates of the second air duct 62 and the third air duct 63 are not less than 400CFM, so as to ensure the stable state of the air curtain and ensure the isolation effect of the air curtain, and the air flow rate of the first air duct 61 is not less than 800CFM, so that the test environment in the test chamber 2 can reach the standard quickly.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages:
according to the air curtain type aging test device, the drying air is output by the drying device to form the direct-blowing air curtain on the outermost layer, and the hatch of the test cabin is completely sealed on the premise that the interaction between products in the test cabin and the outside is not influenced. On one hand, the direct-blowing air curtain does not need to suck air from the outside to supplement the amount of the air per se, so that the invasion of water vapor in the outside air is isolated, and then dry air is introduced into the circulating air curtain of the inner layer, so that the water vapor in the inside air is reduced, the adverse effect caused by the frosting of the water vapor in a test cabin or a circulating air duct when the aging test device performs a low-temperature test is avoided, and the heating and defrosting assembly is arranged to defrost the refrigerating device, so that the refrigerating device is ensured to run stably, and the aging test device can smoothly perform the low-temperature aging test; meanwhile, the direct-blowing air curtain does not need to be sucked from the inside to supplement the direct-blowing air curtain, so that the temperature loss in the test chamber is avoided, and the temperature range which can be reached by the aging test device is enlarged. On the other hand, the cold volume invasion in the outside air has been isolated to the direct-blowing air curtain, and when the ageing tests device carried out humid tropical ageing test, inside high temperature vapor was isolated with outside cold air, has avoided the vapor to condense the water smoke on transparent air curtain to the projection imaging instrument influence that the image caused of delivering, makes the ageing tests device can carry out humid tropical ageing test smoothly.
The above embodiments are merely illustrative of the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the content of the present invention and implement the invention, and not to limit the scope of the invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered by the scope of the present invention.
Claims (10)
1. The utility model provides an air curtain type aging testing device which characterized in that: the device comprises a box body (1), a test cabin (2) arranged in the box body (1), a heating device (3) used for heating the test cabin (2), a refrigerating device (4) used for cooling the test cabin (2), a humidifying device (5) used for humidifying the test cabin (2), a drying device (7) used for supplying dry air for the aging test device and a power module (10) used for connecting a power supply to a product to be tested, wherein a hatch (21) used for taking and placing the product to be tested is formed in the front of the test cabin (2), and a first air channel (61) and at least one second air channel (62) which are sequentially arranged from inside to outside and are circulating air channels are arranged on the periphery of the test cabin (2);
the first wind tunnel (61) forms a first wind curtain at the hatch (21), and part of the air of the first wind curtain is dissipated into the test chamber (2) to simulate the test environment inside the test chamber (2), the heat output component of the heating device (3), the cold output component of the refrigerating device (4) and the output end of the humidifying device (5) are all arranged in the first air channel (61), and a heating and defrosting assembly (8) for defrosting the cooling output component of the refrigerating device (4) is arranged on one side of the cooling output component of the refrigerating device (4) at the upstream along the airflow direction, the second wind tunnel (62) forms a second wind curtain for closing the hatch (21) at the hatch (21), the first air duct (61) and the second air duct (62) are both provided with air inlets (71) communicated with the output end of the drying device (7);
the aging test device further comprises a third air duct (63) which is arranged on the outer side of the second air duct (62) and used for isolating external air, the third air duct (63) is communicated with the output end of the drying device (7), and dry air output by the drying device (7) is blown out through the third air duct (63) to form a third air curtain covering the front of the hatch (21) and dissipated to the outside of the box body (1).
2. The air curtain type aging test apparatus according to claim 1, characterized in that: first air curtain with between the second air curtain, adjacent two between the second air curtain with all be provided with transparent air curtain (9), every on transparent air curtain (9) all set up through-hole (91) of the inside and outside both sides of a plurality of intercommunications, and every the inside of transparent air curtain (9) all inlays and is equipped with and is used for doing heater strip (92) of transparent air curtain (9) heating.
3. The air curtain type aging test apparatus according to claim 1, characterized in that: the hatch opening device is characterized in that a first air outlet and a first air return opening are respectively arranged on two opposite sides of the hatch opening (21) of the first air duct (61), a second air outlet and a second air return opening are respectively arranged on two opposite sides of the hatch opening (21) of the second air duct (62), a third air outlet is arranged on one side of the hatch opening (21) of the third air duct (63), the first air outlet, the second air outlet and the third air outlet are located on the same side of the hatch opening (21), and fans (64) are arranged in the first air duct (61), the second air duct (62) and the third air duct (63).
4. The air curtain type aging test apparatus according to claim 3, wherein: the air in the first air channel (61) is blown out through the first air outlet to form the first air curtain, and is recycled and circulated through the first air return opening, and meanwhile, the air dissipated into the test chamber (2) flows around in the test chamber (2) to the first air return opening to enter and circulate.
5. The air curtain type aging test apparatus according to claim 3, characterized in that: the first air outlet, the second air outlet and the third air outlet are all provided with honeycomb plates (65) used for guiding airflow, and the first air return inlet and the second air return inlet are all provided with screen plates (66).
6. The air curtain type aging test apparatus according to claim 3, characterized in that: the width of the first air outlet is smaller than that of the section of the first air channel (61), the width of the second air outlet is smaller than that of the section of the second air channel (62), the width of the third air outlet is smaller than that of the section of the third air channel (63), and the section is perpendicular to the direction of air flow in the air channel.
7. The air curtain type aging test apparatus according to claim 1, characterized in that: the bottom surface in test compartment (2) is provided with slip table (22) that are used for loading the product that awaits measuring, slip table (22) with sliding connection in the front rear direction of bottom surface in test compartment (2), slip table (22) have loading and unloading operating condition and test operating condition: when the sliding table (22) is in a loading and unloading working state, the sliding table (22) is far away from the rear wall of the test cabin (2), and the sliding table (22) extends out of the test cabin (2) from the hatch (21); when the sliding table (22) is in a testing working state, the sliding table (22) is close to the rear wall of the testing cabin (2), and the sliding table (22) is located inside the testing cabin (2).
8. The air curtain type aging test apparatus according to claim 1, characterized in that: the front side of the air outlet of the third air duct (63) is provided with a telescopic door (23) for covering the hatch (21), and the telescopic door (23) has a preheating working state and a conventional working state: when the telescopic door (23) is in a preheating working state, the telescopic door (23) is extended and completely covers the hatch (21); when the retractable door (23) is in a normal working state, the retractable door (23) is retracted and exposes the hatch (21).
9. The air curtain type aging test apparatus according to claim 1, characterized in that: the air volume of the second air duct (62) and the third air duct (63) is not lower than 400CFM, and the air volume of the first air duct (61) is not lower than 800 CFM.
10. The air curtain type aging test apparatus according to claim 1, characterized in that: the temperature range of the test environment of the aging experimental device is-65-85 ℃, and the humidity range is 20-98%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210154752.8A CN114526935A (en) | 2022-02-21 | 2022-02-21 | Air curtain type aging test device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210154752.8A CN114526935A (en) | 2022-02-21 | 2022-02-21 | Air curtain type aging test device |
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| CN114526935A true CN114526935A (en) | 2022-05-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210154752.8A Pending CN114526935A (en) | 2022-02-21 | 2022-02-21 | Air curtain type aging test device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115508660A (en) * | 2022-11-17 | 2022-12-23 | 海拓仪器(江苏)有限公司 | Electronic device aging testing device |
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| JPH11142469A (en) * | 1997-11-05 | 1999-05-28 | Nec Corp | Method and device for measuring low and high temperature electric characteristics |
| CN200995441Y (en) * | 2007-01-12 | 2007-12-26 | 新疆生产建设兵团建筑工程科学技术研究院有限责任公司 | Standard maintenance temperature adjuster of concrete workpiece |
| CN202305712U (en) * | 2011-11-09 | 2012-07-04 | 高见泽电脑科技股份有限公司 | Temperature testing device |
| CN102879278A (en) * | 2012-09-14 | 2013-01-16 | 清华大学 | High-low temperature dynamic cold-hot circulation thermodynamic test system |
| CN108709902A (en) * | 2018-05-04 | 2018-10-26 | 吴江市海拓仪器设备有限公司 | A kind of wind-curtain type high-low temperature tester |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH11142469A (en) * | 1997-11-05 | 1999-05-28 | Nec Corp | Method and device for measuring low and high temperature electric characteristics |
| CN200995441Y (en) * | 2007-01-12 | 2007-12-26 | 新疆生产建设兵团建筑工程科学技术研究院有限责任公司 | Standard maintenance temperature adjuster of concrete workpiece |
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| CN115508660A (en) * | 2022-11-17 | 2022-12-23 | 海拓仪器(江苏)有限公司 | Electronic device aging testing device |
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