CN109916607B - Controllable test device and test method for same - Google Patents
Controllable test device and test method for same Download PDFInfo
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- CN109916607B CN109916607B CN201910133640.2A CN201910133640A CN109916607B CN 109916607 B CN109916607 B CN 109916607B CN 201910133640 A CN201910133640 A CN 201910133640A CN 109916607 B CN109916607 B CN 109916607B
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Abstract
The invention discloses a controllable test device and a test method for the same. Wherein, controllable test device includes: a test chamber; a generator; the humidity adjusting box is provided with an adjusting cavity and a humidity adjuster arranged in the adjusting cavity, and the humidity adjuster can controllably adjust the humidity of the water vapor in the adjusting cavity; the first temperature sensor and the first humidity sensor are arranged in the test cavity; and the acquisition controller is in signal connection with the first temperature sensor and the first humidity sensor respectively, and controls the humidity regulator according to the acquired temperature and humidity of the test cavity. In addition, the invention also provides a test method for the controllable test device. The invention can realize the humidity control of the use environment of the tested product when the humidity of the tested product is regulated, and has a timing function.
Description
Technical Field
The invention relates to the field of test and test, in particular to a controllable test device and a test method for the same.
Background
In the prior art, many products need to be used in certain humidity, such as automobile wipers, boiler equipment, or some products are subjected to a rapid humidity injection environment in high humidity climates. Such environments may cause damage to such products, which in turn may affect the normal use of the products. Therefore, when the product is not put into the market early, the performance test is carried out aiming at the use environment, so that the product is subjected to environment adaptability verification of design, process and the like in the environment at the early design stage, the waste of a large amount of manpower and material resources caused by modifying the design, the process and the like after the product is formed is avoided, and the cost is greatly improved so as to ensure the reliability of the product.
However, at present, there is no device specially for carrying out the humidity test, most of the test methods are to place the tested product in the simulated actual environment for testing, such test methods are not favorable for multiple tests, and the environment is unstable, the operation is inconvenient, the timing cannot be carried out, and the fine environment adjustment cannot be carried out. Therefore, a special apparatus for testing the humidity to which the product is subjected is highly desired.
Disclosure of Invention
In view of the above, the present invention is directed to a controllable testing device and a testing method for the same.
With the above objects in view, in particular, the present invention provides a controllable test device comprising:
the test chamber is provided with a test cavity which is used for accommodating a tested product and providing a constant temperature and humidity environment;
a generator configured to convert water into steam;
the humidity adjusting box is provided with an adjusting cavity and a humidity adjuster which is arranged in the adjusting cavity and used for adjusting the humidity in the adjusting cavity in a controllable mode;
the inlet of the first conveying pipe is communicated with the outlet of the generator, and the outlet of the first conveying pipe is communicated with the inlet of the regulating cavity, so that the water vapor generated by the generator is conveyed to the regulating cavity through the first conveying pipe;
the inlet of the second conveying pipe is communicated with the outlet of the adjusting cavity, and the outlet of the second conveying pipe is communicated with the inlet of the test cavity, so that the water vapor adjusted by the humidity adjusting box is conveyed to the test cavity through the second conveying pipe;
the first temperature sensor and the first humidity sensor are arranged in the test cavity; and
and the acquisition controller is in signal connection with the first temperature sensor and the first humidity sensor respectively, and is configured to control the humidity regulator according to the acquired temperature and humidity of the test cavity.
Optionally, the controllable test device further comprises: the mass flow controller is arranged on the second conveying pipe; and the mass flow sensor is arranged on the second conveying pipe and is positioned at the downstream of the mass flow controller, the mass flow sensor is in signal connection with the acquisition controller, and the acquisition controller is configured to control the mass flow controller according to the acquired mass flow signal of the mass flow sensor so as to controllably convey the mass flow of the water vapor to the test cavity through the second conveying pipe.
Optionally, the controllable test device further comprises: and the fan is arranged on the second conveying pipe and used for adjusting the mass flow of the water vapor in the second conveying pipe, and the fan is configured to adjust the rotating speed of the fan according to the signal received by the acquisition controller.
Optionally, the controllable test device further comprises: and the second temperature sensor and the second humidity sensor are arranged in the second conveying pipe and positioned at the upstream of the mass flow controller, the second temperature sensor and the second humidity sensor are respectively in signal connection with the acquisition controller, and the acquisition controller is configured to control the humidity regulator according to the acquired temperature and humidity signals of the second temperature sensor and the second humidity sensor.
Optionally, the controllable test device further comprises: the first pressure sensor is arranged on the second conveying pipe and located at the upstream of the mass flow controller, the first pressure sensor is in signal connection with the acquisition controller, and the acquisition controller is configured to control the humidity regulator according to the acquired pressure signal of the first pressure sensor.
Optionally, the controllable test device further comprises: and the second pressure sensor is arranged in the adjusting cavity, and the acquisition controller is configured to control the humidity regulator according to the acquired pressure signal of the second pressure sensor.
Optionally, the controllable test device further comprises: and the third temperature sensor and the third humidity sensor are arranged in the adjusting cavity, are respectively in signal connection with the acquisition control module, and are configured to control the humidity regulator according to the acquired temperature and humidity signals of the third temperature sensor and the third humidity sensor.
Optionally, the humidity conditioner comprises at least one refrigerator and at least one heater.
Optionally, the controllable test device further comprises: the spray pipe is arranged in the test cavity, an inlet of the spray pipe is communicated with an outlet of the second conveying pipe, and the spray pipe is configured to controllably adjust the air injection direction and/or the air injection caliber of the outlet of the spray pipe; the lifting frame is arranged in the test cavity and used for supporting and bearing the test product, and the lifting frame is configured to controllably adjust the height of the bearing surface of the lifting frame.
In particular, the present invention also provides a test method for a controllable test apparatus comprising: the test chamber is provided with a test cavity which is used for accommodating a tested product and providing a constant temperature and humidity environment; a generator configured to convert water into steam; the humidity adjusting box is provided with an adjusting cavity and a humidity adjuster which is arranged in the adjusting cavity and used for adjusting the humidity in the adjusting cavity in a controllable mode; the inlet of the first conveying pipe is communicated with the outlet of the generator, and the outlet of the first conveying pipe is communicated with the inlet of the regulating cavity, so that the water vapor generated by the generator is conveyed to the regulating cavity through the first conveying pipe; the inlet of the second conveying pipe is communicated with the outlet of the adjusting cavity, and the outlet of the second conveying pipe is communicated with the inlet of the test cavity, so that the water vapor adjusted by the humidity adjusting box is conveyed to the test cavity through the second conveying pipe; the first temperature sensor and the first humidity sensor are arranged in the test cavity; and an acquisition controller in signal connection with the first temperature sensor and the first humidity sensor respectively, the acquisition controller being configured to control the humidity regulator according to the acquired temperature and humidity of the test chamber,
the test method comprises the following steps:
placing a tested product in a test cavity, and adjusting the temperature and humidity of the ambient environment of the tested product before actual use in the test cavity;
starting the controllable test device to enable the water vapor to be sprayed to the tested product through the second conveying pipe;
the acquisition controller controls the humidity regulator according to the acquired temperature and humidity of the test cavity;
and stopping steam injection after a preset time, and keeping the temperature and humidity of the test cavity.
Optionally, the controllable test device comprises: the mass flow controller is arranged on the second conveying pipe; and the mass flow sensor is arranged on the second conveying pipe and is positioned at the downstream of the mass flow controller, the mass flow sensor is in signal connection with the acquisition controller, the acquisition controller is configured to control the mass flow controller according to the acquired mass flow signal of the mass flow sensor, so that the mass flow of the water vapor is controllably conveyed to the test cavity through the second conveying pipe, and the test method further comprises the following steps: the acquisition controller controls the mass flow controller according to the acquired mass flow signal of the mass flow sensor, so that the mass flow of the water vapor is controllably delivered to the test cavity through the second delivery pipe.
Optionally, the assay method further comprises: determining the part of the tested product, which is quickly injected with the water vapor, according to the collected data of the tested product in actual use; summarizing a test section according to the collected data of the tested product in actual use; the water vapor sprayed out through the second conveying pipe is controlled to be sprayed into the interior or windward side of the tested product according to the part where the tested product is rapidly injected, and the acquisition controller controls the humidity regulator and/or the mass flow controller according to the test section.
From the above, the controllable test device provided by the invention is provided with the humidity adjusting box, the acquisition controller, the first temperature sensor and the first humidity sensor on the basis of the generator and the test box, so that the generator and the test box can be used for carrying out a humidity test, and meanwhile, the adjusting function of the test box can be met. The collection controller can control the humidity regulator according to the collected temperature and humidity of the test chamber, and then the test chamber of the test box can be located in an expected temperature and humidity environment immediately.
Further, because the controllable test device also comprises the mass flow controller and the mass flow sensor, the acquisition controller can control the mass flow controller according to the acquired mass flow signal of the mass flow sensor, and further the mass flow of the water vapor can be controllably conveyed to the test cavity through the second conveying pipe. That is, the invention can also adjust the mass flow of the water vapor flowing to the test cavity under the condition of adjusting the humidity of the water vapor according to the temperature and humidity of the test cavity.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic diagram of a controllable testing apparatus according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a test chamber of a housing of the controllable test apparatus according to one embodiment of the present invention; and
fig. 3 is a schematic view showing an internal structure of a humidity conditioning cabinet according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to specific embodiments and the accompanying drawings.
It should be noted that all expressions using "first" and "second" in the embodiments of the present invention are used for distinguishing two entities with the same name but different names or different parameters, and it should be noted that "first" and "second" are merely for convenience of description and should not be construed as limitations of the embodiments of the present invention, and they are not described in any more detail in the following embodiments.
Fig. 1 is a schematic structural diagram of a controllable testing apparatus according to an embodiment of the present invention, and fig. 2 is a schematic structural diagram of a testing chamber of a box body of the controllable testing apparatus according to an embodiment of the present invention. Referring to fig. 1 and 2, the embodiment of the present invention discloses a controllable testing device, which is used for performing a humidity environment test of a tested product, i.e. creating a water vapor environment for the tested product through the testing device. Specifically, the controllable test device comprises a test box 1, a generator 14, a humidity adjusting box 5, a first conveying pipe 15 and a second conveying pipe 4. Wherein, the test chamber 1 is provided with a test cavity for accommodating the tested product and providing a constant temperature and humidity environment. The test product is placed in the test cavity of this proof box 1 when humidity is experimental to the test cavity can provide invariable humiture environment. The generator 14 is configured to convert water into water vapor, and the generator 14 is a water vapor (moisture) generating device of the controllable test device. The humidity adjustment tank 5 has an adjustment chamber and a humidity adjuster provided inside the adjustment chamber, and the humidity adjuster is configured to controllably adjust the humidity of the water vapor inside the adjustment chamber. The inlet of the first duct 15 is in communication with the outlet of the generator 14 and the outlet of the first duct 15 is in communication with the inlet of the conditioning chamber, so that the water vapour generated by the generator 14 is conveyed to the conditioning chamber through the first duct 15. The inlet of the second conveying pipe 4 is communicated with the outlet of the adjusting cavity, and the outlet of the second conveying pipe 4 is communicated with the inlet of the test cavity, so that the water vapor adjusted by the humidity adjusting box 5 can be conveyed to the test cavity through the second conveying pipe 4. That is, through the above arrangement and connection of the devices, the main operation of the controllable test apparatus is as follows: the generator 14 converts water into steam, the steam is conveyed into the adjusting cavity of the humidity adjusting box 5 through the first conveying pipe 15 to adjust the humidity of the steam, and then the steam is conveyed into the test cavity of the test box 1 through the second conveying pipe 4 to enable the surrounding environment of the tested product to have a certain amount of steam, and the humidity test is carried out.
Further, in this embodiment, the controllable testing device further includes a first temperature sensor, a first humidity sensor, and an acquisition controller 10. Wherein, first temperature sensor and first humidity sensor all set up in the test chamber, and they can be used to monitor temperature and humidity in the test chamber in time. Acquisition controller 10 is connected with first temperature sensor and first humidity transducer signal respectively, and acquisition controller 10 configures into the humiture control humidity controller according to the test chamber of gathering. That is to say, acquisition controller 10 still is connected with the humidity controller electricity in the regulation chamber or signal connection, and acquisition controller 10 adjusts the humidity controller in the regulation chamber according to the humiture condition in the test chamber of rear end for the water vapor through adjusting the chamber and adjusting to the test chamber after, can satisfy the requirement to its humidity.
As shown in FIG. 1, in some embodiments of the present invention, the controllable test device may further include a mass flow controller 8 and a mass flow sensor 9. Wherein the mass flow controller 8 may be arranged in the second duct 4. A mass flow sensor 9 may be disposed in second delivery pipe 4 downstream of mass flow controller 8, and mass flow sensor 9 is in signal connection with an acquisition controller 10. The collection controller 10 may control the mass flow controller 8 according to the collected mass flow signal of the mass flow sensor 9, so that the mass flow of the water vapor is controllably delivered to the test chamber through the second delivery pipe 4. That is, the present embodiment adds a water vapor mass flow control function to the above-described embodiment. That is, the mass flow controller 8 is disposed in the second delivery pipe 4, and the mass flow sensor 9 is disposed downstream of the mass flow controller 8, so that it is possible to detect whether the mass flow of the second delivery pipe 4 satisfies the requirement after the mass flow is adjusted, and if not, the acquisition controller 10 controls the mass flow controller 8 to adjust the mass flow. In some embodiments, the mass flow controller 8 may be a solenoid valve that adjusts the opening of the line of the second delivery pipe 4, but may of course be some other type of valve. The mass flow controller 8 may be connected to the acquisition controller 10 by a signal or may be electrically connected thereto. In other embodiments of this embodiment, the acquisition control module or the controller thereof may be configured with a timing function, so as to control the opening or closing of the mass flow controller 8, so that the controllable testing apparatus has the timing function. Of course, the controllable testing device may be provided with other valves, for example, an on-off valve 16 may be provided in the first delivery pipe 15, and the timing function may be controlled to be opened and closed by controlling the on-off valve 16.
In some alternative embodiments, the mass flow controller 8 and the mass flow sensor 9 may also be provided at other locations. For example, a mass flow controller 8 is provided at the end of the second delivery pipe 4 and a mass flow sensor 9 is provided at the outlet of the second delivery pipe 4, so that the mass flow of water vapour out of the second delivery pipe 4 can be controlled. In further alternative embodiments, the mass flow sensor 9 may also be arranged upstream of the mass flow controller 8.
As shown in FIG. 1, in some embodiments of the present invention, the controllable test device may further comprise a blower 7. A fan 7 may be arranged in the second duct 4, the fan 7 being adapted to regulate the mass flow of water vapour in the second duct 4. Also, the fan 7 may be configured to adjust the rotational speed of the fan 7 in accordance with the signal received from the acquisition controller 10. That is to say, the collection controller 10 can be in signal connection or electrical connection with the fan 7, and the collection controller 10 monitors the water vapor mass flow signal of the mass flow sensor 9, and when necessary, the flow speed of the water vapor in the second delivery pipe 4 can be changed by adjusting the rotation speed of the fan 7, so as to adjust the mass flow of the water vapor in the second delivery pipe 4. The blower 7 and the mass flow controller 8 may be used in combination. In some embodiments, a fan 7 may be provided at the inlet of the second duct 4, and the fan 7 may have a suction function to suck the water vapor of the humidity adjustment chamber into the second duct 4, contributing to the water vapor movement of the whole system.
In some embodiments of the present invention, the controllable test device may further comprise a second temperature sensor 3 and a second humidity sensor 2. Specifically, the second temperature sensor 3 and the second humidity sensor 2 may be both disposed in the second conveying pipe 4 and located at the upstream of the mass flow controller 8, and the second temperature sensor 3 and the second humidity sensor 2 are respectively in signal connection with the acquisition controller 10, and the acquisition controller 10 may be configured to control the humidity regulator according to the acquired temperature and humidity signals of the second temperature sensor 3 and the second humidity sensor 2. That is, the present embodiment can further monitor the temperature and humidity of the water vapor in the second delivery pipe 4 by providing the second temperature sensor 3 and the second humidity sensor 2 in the second delivery pipe 4 upstream of the mass flow controller 8. In some embodiments, the second temperature sensor 3 and the second humidity sensor 2 may also be disposed at other locations, for example, may be disposed within the second delivery pipe 4 and downstream of the mass flow controller 8, or the second temperature sensor 3 and the second humidity sensor 2 may be disposed within the second delivery pipe 4 and downstream of the mass flow controller 8, respectively.
In some embodiments of the present invention, the controllable test device may further comprise a first pressure sensor 6. Specifically, the first pressure sensor 6 may be disposed in the second delivery pipe 4 upstream of the mass flow controller 8, and the first pressure sensor 6 is in signal connection with the acquisition controller 10. The acquisition controller 10 may be configured to control the humidity regulator according to the acquired pressure signal of the first pressure sensor 6. In some embodiments, the first pressure sensor 6 has a safety function in addition to the function of regulating the humidity regulator by detecting a pressure signal so that the water vapor delivered to the test chamber meets the humidity requirement. In these embodiments, the collection controller 10 should also be electrically or signally connected to the generator 14 or to the on-off valve 16 of the first delivery pipe 15, so that the supply of water vapor can be stopped in time when the first pressure sensor 6 detects that there is a safety risk of an overpressure in the second delivery pipe 4. When the connection is made, the connection with the on-off valve 16 can be made by the cable 13.
In some embodiments of the present invention, as shown in conjunction with fig. 1 and 3, the controllable test device may further include a second pressure sensor. Specifically, a second pressure sensor may be disposed in the conditioning chamber, and the acquisition controller 10 may be configured to control the humidifier according to the acquired pressure signal of the second pressure sensor. In some embodiments, the second pressure sensor has a safety function in addition to the function of regulating the humidity regulator by detecting a pressure signal so that the water vapour delivered to the second delivery pipe 4 meets the humidity requirement. In these embodiments, the collection controller 10 should also be electrically or signally connected to the generator 14 or the valve of the first delivery pipe 15, so that the supply of water vapor can be stopped in time when the second pressure sensor detects that there is a safety risk of excessive pressure in the humidity conditioning chamber.
Referring to fig. 1 and 3, in some embodiments of the present invention, the controllable test device may further include a third temperature sensor and a third humidity sensor. Specifically, the third temperature sensor and the third humidity sensor can be arranged in the adjusting cavity, and the third temperature sensor and the third humidity sensor can be respectively connected with the acquisition control module through signals. The acquisition control module can be configured to control the humidity regulator according to the acquired temperature and humidity signals of the third temperature sensor and the third humidity sensor. That is to say, this embodiment just can monitor the humiture in the humidity control intracavity immediately through set up third temperature sensor and third humidity transducer in the humidity control intracavity, the humiture through the vapor after humidity controller adjusts promptly. Through more information acquisition, the precision of the system is improved.
In some embodiments of the present invention, some other temperature sensors and humidity sensors may be further disposed at other parts of the system, and these sensors may be electrically connected or in signal connection with the acquisition controller 10 or its upper controller, so as to further increase the acquisition of temperature and humidity information, and improve the accuracy of the system through more information acquisition. For example, some temperature sensor and humidity sensor may be provided in first delivery pipe 15.
As shown in fig. 3, in some embodiments of the invention, the humidity conditioner may include at least one refrigerator and at least one heater. For example, a refrigerator and a heater are respectively arranged, the heater can be an electric heater, and the refrigerator can be a semiconductor refrigeration piece. For example, a heat pump system may be provided, which has a heating function and a cooling function. For another example, in order to increase the gradient of humidity adjustment, it is also possible to provide a plurality of heaters and refrigerators, such as the first heater 11, the second heater 12, the first refrigerator 20, and the second refrigerator 21, so that gradient humidity adjustment can be performed by simultaneously turning on or only turning on portions thereof. In other embodiments, a fan may be disposed within the humidity conditioning chamber. The fan is matched with at least one refrigerator and at least one heater, and the fan can be in signal connection or electric connection with the acquisition controller 10, so that the water vapor humidity in the humidity adjusting cavity is adjusted together, and the air flow in the humidity adjusting cavity is facilitated.
In some embodiments of the invention, the controllable test device may further comprise a spout and a crane. Specifically, the nozzle may be disposed in the test chamber, and an inlet of the nozzle may communicate with an outlet of the second transport pipe 4, and the nozzle may be configured to controllably adjust a gas injection direction and a gas injection caliber of the outlet thereof. The crane may be arranged in the test chamber for supporting the test product, and the crane may be configured to controllably adjust the height of its support surface. That is, the present embodiment can adjust the position and direction of the water vapor received by the product to be tested by arranging the spraying pipe and the lifting frame. The position of the spray pipe sprayed to the tested product can be controlled by adjusting the air spraying direction of the outlet, and the spraying area of the water vapor sprayed to the tested product can be controlled by adjusting the caliber of the spray pipe. By arranging the lifting frame, the part of the tested product receiving water vapor can be adjusted by adjusting the height of the tested product. In some embodiments, the lifting frame has a rotating function, so that the adjustment sensitivity of the tested product is further improved. In other embodiments, the bottom of the lifting frame is hollowed out, so that the bottom of a tested product can contact with water vapor, and the test effect of the tested product is improved. In some embodiments, the support plate 18 is installed inside the test chamber through a support frame, the support frame comprises a support pipe 17 and a support rod 19, the lower end of the support pipe 17 is fixedly connected with the bottom of the inner wall of the test chamber, the upper end of the support rod 19 is fixedly connected with the lower end of the support plate 18, the lower end of the support rod 19 is sleeved in the upper end of the support pipe 17 through threads, a tested product is placed on the support plate 18, and the height of the support plate 18 can be adjusted through the support frame.
In some embodiments of the invention, the generator 14 may include a generator housing and an electrically heated water tray disposed within the generator housing. That is, by injecting water into the electrically heated water tray, the electrically heated water tray is heated again, so that water is evaporated to generate water vapor, which flows again to the humidity adjustment chamber via the first delivery pipe 15. In some embodiments, the electrically heated water tray may include a plurality of electrically heated pipes that the tray body may be disposed within the tray body. The number of the electric heating pipes can be 12, 24, 32, 40 and the like. In other embodiments of this embodiment, the rated power of the electric heating water tray may be 380V, and the rated heating power is 100 Kw. In some embodiments, one or more of the plurality of electrically heated tubes may be used at intervals to control the gradient of the rate of water vapor generation by the generator 14.
In some embodiments of the invention, a water replenishing pipe and a water replenishing valve can also be included. Specifically, the water supply pipe is communicated with the generator 14 to supply water to the generator 14, and the water supply valve is arranged on the water supply pipe to open and close the water supply pipe.
The invention also provides a test method for the controllable test device, which comprises the following steps:
s1: placing the tested product in the test cavity, and adjusting the temperature and humidity of the test cavity to the ambient environment of the tested product before actual use;
s2: starting the controllable test device to enable the water vapor to be sprayed to the tested product through the second conveying pipe 4;
s3: the acquisition controller 10 controls the humidity regulator according to the acquired temperature and humidity of the test cavity;
s4: and stopping steam injection after a preset time, and keeping the temperature and humidity of the test cavity.
That is to say, the test method of this embodiment is at first placed the test product in the test chamber, and the test chamber has the humiture and keeps the function, keeps the humiture in the test chamber at the humiture of the test product ambient environment before in-service use. The controllable testing device is then activated so that the water vapour generated by the generator 14 can be delivered into the test chamber via the second delivery tube 4 and be sprayed towards the test product, changing the humidity environment of the test product. Then, the acquisition controller 10 controls the humidity regulator according to the acquired temperature and humidity environment of the test chamber, so that the water vapor flowing into the test chamber meets the requirement of the humidity environment or the humidity environment change of the tested product in actual use. And finally, after the rapid injection, the temperature and the humidity of the test cavity are kept, so that the interference of the external environment on the test is avoided. The test method can adjust the humidity of the water vapor in the adjusting cavity in real time based on the temperature and humidity environment of the tested product during the test, thereby facilitating the test operation and enabling the test to be more sensitive and accurate.
In some embodiments of the invention, the assay method may further comprise the steps of: the acquisition controller 10 controls the mass flow controller 8 according to the acquired mass flow signal of the mass flow sensor 9, so that the mass flow of the water vapor is controllably delivered to the test chamber through the second delivery pipe 4. By collecting the mass flow signal of the water vapor of the mass flow sensor 9, the mass flow of the water vapor flowing into the test cavity can be controlled on the basis of immediately controlling the temperature and the humidity in the test cavity, namely, the mass flow is controlled on the basis of controlling the humidity by the test method. In some embodiments, the acquisition control module or the controller thereof may be configured with a timing function, and may control the opening or closing of the mass flow controller 8, so that the controllable testing device has the timing function. Of course, the controllable testing device may be provided with other valves, for example, an on-off valve 16 may be provided in the first delivery pipe 15, and the timing function may be controlled to be opened and closed by controlling the on-off valve 16.
In some embodiments of the invention, the assay method further comprises the steps of: determining the part of the tested product, which is quickly injected with the water vapor, according to the collected data of the tested product in actual use; summarizing a test section according to the collected data of the tested product in actual use; the water vapor injected through the second transport pipe 4 is controlled to be injected into the inside or windward side of the test product according to the portion where the test product is rapidly injected, and the acquisition controller 10 controls the humidity regulator and/or the mass flow controller 8 according to the test profile. That is, in this example, the humidity invasion type of the test product was tested before the test method was performed. For example, the humidity of a sealed test product in actual use substantially only invades the surface of the test product, whereas the humidity of a test product such as a water tank, which may mainly invade the interior of the test product, should be taken in a different way when carrying out the test. However, it may not be clear whether the product to be tested is particularly invaded inside or outside, and the invasion type needs to be determined by experiment. Therefore, data of the test product at the time of actual use collected before the above-described embodiment is required, by which the moisture invasion category of the test product is determined. At the same time, the test profile can be concluded. In the test, the tested products can be specially placed according to the invasion type, or the special water vapor spraying direction and flow control can be carried out. That is, the water vapor injected through the second transport pipe 4 is controlled to be injected into the inside or windward side of the test product according to the portion where the test product is rapidly injected, and the acquisition controller 10 controls the humidity controller and/or the mass flow controller 8 according to the test profile. In some embodiments, if the moisture is injected into the test product quickly in actual use, the moisture with certain temperature, humidity and flow rate can be injected into the test product within a corresponding time according to the summarized test profile, and the injection caliber of the spray pipe can be adjusted according to the size of the injection caliber of the test profile of the test product. If moisture is quickly injected into the periphery of the tested product in actual use, the corresponding moisture injection caliber is changed, and the set temperature, humidity and flow speed of the moisture are blown to the windward side in actual use according to the summarized test section.
In some embodiments of the present invention, the data collection of the test product before the test can be performed according to the following method:
when a test for rapidly injecting the interior of a tested product is carried out, the injected caliber is determined, and corresponding temperature/humidity measuring points are arranged in a cavity in the tested product. The temperature and humidity inside the tested product in the process of rapid injection of the moisture in the actual use environment and the change condition of the temperature and the humidity along with time can be mainly collected, and the ambient temperature and humidity of the product in a certain time after rapid injection of the moisture in the actual use environment are recorded. In some embodiments, if actual data collection is not performed or is difficult, empirical data of similar products can be used for reference or relevant guidelines can be developed for calculation to obtain relevant data. In other embodiments, the ambient temperature and humidity of the product may be recorded within 24 hours after the rapid injection of moisture in the actual use environment.
When the situation of the periphery of the tested product is subjected to rapid moisture injection, the method mainly comprises the steps of collecting representative temperature, humidity and temperature change conditions of a plurality of points near the tested product in the rapid moisture injection process in the actual use environment, the injection angle of water vapor, the mass flow rate of rapid water vapor injection and the like. And recording the temperature and humidity around the tested product within a certain time after the water vapor is rapidly injected in the actual use environment. In some embodiments, 6 points can be collected as representative detection points, such as temperature and humidity at a certain position away from the center of the upper, lower, front, rear, left and right surfaces of the tested product, and the temperature and humidity change along with time. In some more specific embodiments, the location may be 5 to 15cm, for example 10cm, from the center of each facet. In some embodiments, the water vapor injection angle may be the temperature and humidity change of the windward side and the leeward side, and most of the water vapor injection angles are windward sides according to specific requirements. In other embodiments, the temperature and humidity around the test product may be recorded within 24 hours after the rapid injection of water vapor in the actual use environment. In other embodiments, if actual data collection is not performed or is difficult, empirical data of similar products can be used for reference or relevant guidelines can be developed for calculation to obtain relevant data.
The apparatus of the foregoing embodiment is used to implement the corresponding method in the foregoing embodiment, and has the beneficial effects of the corresponding method embodiment, which are not described herein again.
Those of ordinary skill in the art will understand that: the discussion of any embodiment above is meant to be exemplary only, and is not intended to intimate that the scope of the disclosure, including the claims, is limited to these examples; within the idea of the invention, also features in the above embodiments or in different embodiments may be combined, steps may be implemented in any order, and there are many other variations of the different aspects of the invention as described above, which are not provided in detail for the sake of brevity.
In addition, well known power/ground connections to Integrated Circuit (IC) chips and other components may or may not be shown within the provided figures for simplicity of illustration and discussion, and so as not to obscure the invention. Furthermore, devices may be shown in block diagram form in order to avoid obscuring the invention, and also in view of the fact that specifics with respect to implementation of such block diagram devices are highly dependent upon the platform within which the present invention is to be implemented (i.e., specifics should be well within purview of one skilled in the art). Where specific details (e.g., circuits) are set forth in order to describe example embodiments of the invention, it should be apparent to one skilled in the art that the invention can be practiced without, or with variation of, these specific details. Accordingly, the description is to be regarded as illustrative instead of restrictive.
While the present invention has been described in conjunction with specific embodiments thereof, many alternatives, modifications, and variations of these embodiments will be apparent to those of ordinary skill in the art in light of the foregoing description. For example, other memory architectures (e.g., dynamic ram (dram)) may use the discussed embodiments.
The embodiments of the invention are intended to embrace all such alternatives, modifications and variances that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, substitutions, improvements and the like that may be made without departing from the spirit and principles of the invention are intended to be included within the scope of the invention.
Claims (12)
1. A controllable testing device, characterized by comprising:
the test chamber is provided with a test cavity which is used for accommodating a tested product and providing a constant temperature and humidity environment;
a generator configured to convert water into steam;
a humidity adjustment box having an adjustment chamber and a humidity adjuster disposed inside the adjustment chamber, and the humidity adjuster is configured to controllably adjust humidity inside the adjustment chamber;
a first delivery pipe, the inlet of which is communicated with the outlet of the generator, and the outlet of which is communicated with the inlet of the conditioning chamber, so that the water vapor generated by the generator is delivered to the conditioning chamber through the first delivery pipe;
the inlet of the second conveying pipe is communicated with the outlet of the adjusting cavity, and the outlet of the second conveying pipe is communicated with the inlet of the test cavity, so that certain temperature and humidity gas adjusted by the humidity adjusting box is conveyed to the test cavity through the second conveying pipe;
the first temperature sensor and the first humidity sensor are arranged in the test cavity; and
the acquisition controller is in signal connection with the first temperature sensor and the first humidity sensor respectively, and is configured to control the humidity regulator according to the acquired temperature and humidity of the test cavity;
the spray pipe is arranged in the test cavity, an inlet of the spray pipe is communicated with an outlet of the second conveying pipe, and the spray pipe is configured to controllably adjust the air injection direction and/or the air injection caliber of the outlet of the spray pipe; the spray pipe controls the position of spraying to the tested product by adjusting the air spraying direction of the outlet, and controls the spraying area of spraying to the tested product by adjusting the caliber of the spray pipe.
2. The controllable testing device of claim 1, further comprising:
the mass flow controller is arranged on the second conveying pipe; and
a mass flow sensor arranged in the second delivery pipe and located at the downstream of the mass flow controller, and connected with the acquisition controller via signals
The collection controller is configured to control the mass flow controller according to the collected mass flow signal of the mass flow sensor, so that the mass flow of certain temperature and humidity gas is controllably conveyed to the test cavity through the second conveying pipe.
3. The controllable testing device of claim 2, further comprising:
a fan arranged on the second delivery pipe for adjusting the mass flow of the wet water vapor in the second delivery pipe, and
the fan is configured to adjust a rotational speed of the fan based on the signal received from the acquisition controller.
4. A controllable pilot unit according to claim 3, further comprising:
a second temperature sensor and a second humidity sensor arranged in the second conveying pipe and located at the upstream of the mass flow controller, wherein the second temperature sensor and the second humidity sensor are respectively connected with the acquisition controller by signals and are connected with the acquisition controller by signals
The collection controller is configured to control the humidity regulator according to collected temperature and humidity signals of the second temperature sensor and the second humidity sensor.
5. The controllable testing device of claim 4, further comprising:
a first pressure sensor arranged on the second delivery pipe and located at the upstream of the mass flow controller, and connected with the acquisition controller via signals
The acquisition controller is configured to control the humidity regulator according to the acquired pressure signal of the first pressure sensor.
6. The controllable testing device of claim 5, further comprising:
a second pressure sensor disposed in the adjustment chamber and
the collection controller is configured to control the humidity regulator according to the collected pressure signal of the second pressure sensor.
7. The controllable testing device of claim 6, further comprising:
a third temperature sensor and a third humidity sensor arranged in the adjusting cavity, wherein the third temperature sensor and the third humidity sensor are respectively connected with the signal of the acquisition control module, and
the acquisition control module is configured to control the humidity regulator according to the acquired temperature and humidity signals of the third temperature sensor and the third humidity sensor.
8. The controllable testing device of claim 2, wherein
The humidifier includes at least one refrigerator and at least one heater.
9. The controllable testing device of claim 2, further comprising:
the lifting frame is arranged in the test cavity and used for supporting and bearing the test product, and the lifting frame is configured to controllably adjust the height of the supporting surface of the lifting frame.
10. A testing method for a controllable testing device, the controllable testing device comprising:
the test chamber is provided with a test cavity which is used for accommodating a tested product, providing rapid injection of moisture-containing water vapor with certain temperature and humidity and keeping constant temperature and humidity environment;
a generator configured to convert water into steam;
a humidity adjustment box having an adjustment chamber and a humidity adjuster disposed inside the adjustment chamber, and the humidity adjuster is configured to controllably adjust humidity inside the adjustment chamber;
a first delivery pipe, the inlet of which is communicated with the outlet of the generator, and the outlet of which is communicated with the inlet of the conditioning chamber, so that the water vapor generated by the generator is delivered to the conditioning chamber through the first delivery pipe;
the inlet of the second conveying pipe is communicated with the outlet of the adjusting cavity, and the outlet of the second conveying pipe is communicated with the inlet of the test cavity, so that certain temperature and humidity gas adjusted by the humidity adjusting box is conveyed to the test cavity through the second conveying pipe;
the first temperature sensor and the first humidity sensor are arranged in the test cavity; and
the acquisition controller is in signal connection with the first temperature sensor and the first humidity sensor respectively, and is configured to control the humidity regulator according to the acquired temperature and humidity of the test cavity;
the spray pipe is arranged in the test cavity, an inlet of the spray pipe is communicated with an outlet of the second conveying pipe, and the spray pipe is configured to controllably adjust the air injection direction and/or the air injection caliber of the outlet of the spray pipe; the spraying pipe controls the position of spraying to a tested product by adjusting the air spraying direction of the outlet, and controls the spraying area of spraying to the tested product by adjusting the caliber of the spraying pipe;
the test method comprises the following steps:
placing a tested product in the test cavity, and adjusting the temperature and humidity of the test cavity to the ambient environment of the tested product before actual use;
starting the controllable test device to enable gas with certain temperature and humidity to be sprayed to the tested product through the second conveying pipe;
the acquisition controller controls the humidity regulator according to the acquired temperature and humidity of the test cavity;
and stopping jetting of certain temperature and humidity gas after a preset time, and keeping the temperature and humidity of the test cavity.
11. The assay of claim 10, wherein the controllable assay device comprises:
the mass flow controller is arranged on the second conveying pipe; and
a mass flow sensor arranged in the second delivery pipe and located at the downstream of the mass flow controller, and connected with the acquisition controller via signals
The acquisition controller is configured to control the mass flow controller according to the acquired mass flow signal of the mass flow sensor so as to controllably convey a certain temperature and humidity gas mass flow to the test cavity through the second conveying pipe,
the assay method further comprises:
the acquisition controller controls the mass flow controller according to the acquired mass flow signal of the mass flow sensor, so that the mass flow of certain temperature and humidity gas is controllably conveyed to the test cavity through the second conveying pipe.
12. The assay method of claim 11, further comprising:
determining a part where certain temperature and humidity gas is rapidly injected into the tested product according to the collected data of the tested product in actual use;
summarizing a test section according to the collected data of the tested product in actual use;
and controlling the gas with certain temperature and humidity sprayed out through the second conveying pipe to be injected into the interior or windward side of the tested product according to the part of the tested product which is quickly injected into the tested product, and controlling the humidity regulator and/or the mass flow controller by the acquisition controller according to the test profile.
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| CN109916607A (en) | 2019-06-21 |
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