Ventilation detection device and ventilation detection method

Abstract

The present application relates to a kind of ventilation detection equipment and ventilation detection method, whether three performance indicators of blast device is qualified by a ventilation test, improve work efficiency.The ventilation detection equipment includes: gas supply control component, for controlling the pressure and flow of gas supplied via gas source, to output the gas of preset flow at preset gas pressure;Clamping tool, the clamping tool can be ventingly connected the gas supply control component, for ventingly clamping device to be detected;Gas pressure detection module, the gas pressure detection module can be ventingly connected the clamping tool, for detecting the intake pressure of device to be detected via the clamping tool clamping, to obtain the intake pressure data of device to be detected;And judging module, the judging module is electrically connected to the gas pressure detection module, for receiving the intake pressure data of device to be detected, and compared with qualified gas pressure threshold range to judge whether device to be detected is qualified.

Description

Technical Field

[0001] This invention relates to the field of equipment testing technology, and in particular to a ventilation testing device and a ventilation testing method. Background Technology

[0002] As a core component of disposable reaction bags, the aeration device requires strict testing upon arrival of materials for its overall microporous ventilation performance, the sealing performance between various components, and the bonding strength between the cover plate and the base. This is because if any one of these performance indicators fails to meet the requirements, the product cannot be used.

[0003] However, existing testing systems typically employ different conventional testing methods to detect these three performance indicators, leading to a significant increase in workload and low efficiency for inspectors during the incoming material process. For example, for micropore detection, existing micropore detection technologies usually use light sources to illuminate and visually inspect whether the micropores are continuous. However, because the micropores on the aeration device vary in size and are numerous, it is impossible to determine the overall air permeability of the micropores. For sealing testing, conventional adhesive sealing testing techniques require sealing the micropores of the aeration device to ensure airtightness, but this is complex, inefficient, and unsuitable for full inspection testing of incoming products. For adhesive strength testing, conventional strength testing techniques are burst tests or tensile tests, but these are destructive to the product being tested and are also unsuitable for full inspection testing of incoming products. In summary, existing testing systems not only employ complex conventional testing methods, but also require different testing methods for the above three performance indicators, making it impossible to simultaneously perform these tests and unsuitable for full inspection of incoming aeration devices. Summary of the Invention

[0004] One advantage of this invention is that it provides a ventilation testing device and a ventilation testing method, which can determine whether three performance indicators of an aeration device are qualified through a single ventilation test, thereby improving work efficiency.

[0005] Another advantage of the present invention is that it provides a ventilation detection device and a ventilation detection method. In one embodiment of the present invention, the ventilation detection device can simultaneously detect the overall ventilation performance, sealing performance and bonding strength of the micropores by continuously ventilating the aeration device.

[0006] Another advantage of the present invention is that it provides a ventilation detection device and a ventilation detection method. In one embodiment of the present invention, the ventilation detection method can verify whether the three performance indicators of the aeration device are qualified by means of only one air intake detection and subsequent data statistics method, thereby improving detection efficiency and accuracy.

[0007] Another advantage of this invention is that it provides a ventilation detection device and a ventilation detection method, wherein, to achieve the above-mentioned objectives, expensive materials or complex structures are not required. Therefore, this invention successfully and effectively provides a solution that not only offers a simple ventilation detection device and method, but also increases the practicality and reliability of the ventilation detection device and method.

[0008] To achieve at least one of the above-mentioned advantages or other advantages and objectives of the present invention, the present invention provides a ventilation testing device for performing performance testing on a device under test, the ventilation testing device comprising:

[0009] Gas supply control component, used to control the pressure and flow rate of gas supplied via gas source, so as to output gas at a preset flow rate under a preset pressure;

[0010] A clamping fixture, which is ventilably connected to the air supply control component, is used to ventilably clamp the device to be inspected;

[0011] A pneumatic pressure detection module, ventilably connected to the clamping fixture, is used to detect the inlet pressure of the device under test clamped by the clamping fixture, thereby obtaining inlet pressure data of the device under test; and

[0012] The judgment module is electrically connected to the air pressure detection module and is used to receive the air pressure data of the device under test and compare it with the qualified air pressure threshold range to determine whether the device under test is qualified.

[0013] According to one embodiment of this application, the judgment module includes a data acquisition module, a preprocessing module, a mixing processing module, and a threshold determination module that are communicatively connected to each other; the data acquisition module is used to acquire N batches of intake pressure data, wherein each batch of intake pressure data includes the intake pressure values ​​of M devices to be inspected detected by the pressure detection module; the preprocessing module is used to preprocess the N batches of intake pressure data respectively to obtain N batches of pre-qualified data; the mixing processing module is used to mix the N batches of pre-qualified data to obtain N-1 batches of qualified data; the threshold determination module is used to determine the N-1th qualified pressure range Q corresponding to the N-1th batch of qualified data. N-1 ±Y is the acceptable air pressure threshold range.

[0014] According to one embodiment of this application, the preprocessing module includes a pre-sorting module, a pre-screening module, and a pre-determination module that are communicatively connected to each other; the pre-sorting module is used to sort all the intake pressure values ​​in the i-th batch of intake pressure data by size, where i is a positive integer greater than or equal to 1 and less than or equal to N; the pre-screening module is used to filter the intake pressure values ​​of a preset proportion X from the sorted i-th batch of intake pressure data, and perform average value calculation to obtain the i-th pre-qualified average value P. i The pre-determination module is used to determine the i-th batch of intake pressure data that falls within the i-th pre-qualified pressure range P. i The intake pressure value within ±Y is determined as the pre-qualified data for the i-th batch.

[0015] According to one embodiment of this application, the hybrid processing module includes a hybrid sorting module, a hybrid screening module, and a qualification determination module that are communicatively connected to each other; the hybrid sorting module is used to sort all intake pressure values ​​in the first batch of pre-qualified data and the second batch of pre-qualified data by size; the hybrid screening module is used to screen intake pressure values ​​with a preset intermediate ratio X from the sorted first batch of pre-qualified data and the second batch of pre-qualified data, and calculate the average value to obtain a first qualified average value Q1; the qualification determination module is used to determine the intake pressure values ​​in the first batch of pre-qualified data and the second batch of pre-qualified data that are within the first qualified pressure range Q1±Y as the first batch of qualified data.

[0016] According to one embodiment of this application, the hybrid sorting module is further configured to sort all intake pressure values ​​in the j-th batch of qualified data and the (j+2)-th batch of pre-qualified data by size, where j is a positive integer greater than or equal to 1 and less than or equal to N-2; the hybrid screening module is further configured to screen intake pressure values ​​of a preset intermediate ratio X from the sorted j-th batch of qualified data and the (j+2)-th batch of pre-qualified data, and perform average value calculation to obtain the (j+1)-th qualified average value Q. j+1 The qualification determination module is further used to determine the qualified data of the j-th batch and the pre-qualified data of the (j+2)-th batch that fall within the qualified pressure range Q of the (j+1)-th batch. j+1 The intake pressure value within ±Y is determined as the qualified data for the (j+1)th batch.

[0017] According to one embodiment of this application, the gas supply control component includes a pressure regulating module, a flow control module, a flow detection module, and a signal control module. The pressure regulating module is connected to the flow control module via an air pipe, the flow control module is connected to the flow detection module via an air pipe, the flow detection module is connected to the clamping fixture and the pressure detection module via an air pipe and a tee, and the signal control module is connected to the flow control module and the flow detection module via an electrical wire.

[0018] According to another aspect of this application, this application further provides a ventilation detection method, comprising the steps of:

[0019] Control the pressure and flow rate of the gas supplied by the gas source to output a preset flow rate of gas at a preset pressure to the device to be inspected, which is clamped by the clamping fixture.

[0020] The intake pressure of the device under test, clamped by the clamping fixture, is detected to obtain the intake pressure data of the device under test; and

[0021] The system receives the intake pressure data of the device under test and compares it with the acceptable air pressure threshold range to determine whether the device under test is qualified.

[0022] According to one embodiment of this application, the step of receiving the inlet pressure data of the device under test and comparing it with a qualified air pressure threshold range to determine whether the device under test is qualified further includes the following steps:

[0023] Obtain N batches of intake pressure data, where each batch of intake pressure data includes the intake pressure values ​​of M devices under test detected by the air pressure detection module;

[0024] The N batches of intake pressure data were preprocessed to obtain N batches of pre-qualified data.

[0025] The N batches of pre-qualified data are mixed to obtain N-1 batches of qualified data; and

[0026] The qualified pressure range Q corresponding to the qualified data of the (N-1)th batch is... N-1 ±Y is the acceptable air pressure threshold range.

[0027] According to one embodiment of this application, the step of preprocessing the N batches of intake pressure data to obtain N batches of pre-qualified data includes the following steps:

[0028] Sort all intake pressure values ​​in the i-th batch of intake pressure data by size, where i is a positive integer greater than or equal to 1 and less than or equal to N;

[0029] From the sorted intake pressure data of the i-th batch, the intake pressure values ​​of the intermediate preset proportion X are selected, and the average value is calculated to obtain the i-th pre-qualified average value P. i ;as well as

[0030] The intake pressure data in the i-th batch that falls within the i-th pre-qualified pressure range P i The intake pressure value within ±Y is determined as the pre-qualified data for the i-th batch.

[0031] According to one embodiment of this application, the step of mixing the N batches of pre-qualified data to obtain N-1 batches of qualified data includes the following steps:

[0032] Sort all intake pressure values ​​in the j-th batch of qualified data and the (j+2)-th batch of pre-qualified data by size, where j is a positive integer greater than or equal to 1 and less than or equal to N-2;

[0033] From the sorted batch j of qualified data and the (j+2)th batch of pre-qualified data, the intake pressure value of the intermediate preset proportion X is selected, and the average value is calculated to obtain the (j+1)th qualified average value Q. j+1 ;as well as

[0034] The qualified data from the j-th batch and the pre-qualified data from the (j+2)-th batch fall within the qualified pressure range Q of the (j+1)-th batch. j+1 The intake pressure value within ±Y is determined as the qualified data for the (j+1)th batch. Attached Figure Description

[0035] Figure 1 This is a schematic diagram of the device under inspection;

[0036] Figure 2 This is a block diagram of a ventilation detection device according to an embodiment of the present invention;

[0037] Figure 3 A block diagram of the judgment module in the ventilation detection device according to the above embodiment of the present invention is shown;

[0038] Figure 4 This is a schematic flowchart of a ventilation detection method according to an embodiment of the present invention;

[0039] Figure 5 A flowchart illustrating the judgment step in the ventilation detection method according to the above embodiment of the present invention is shown;

[0040] Figure 6 An example of a pretreatment step in the ventilation detection method according to the above embodiments of the present invention is shown;

[0041] Figure 7 An example of the mixing process step in the ventilation detection method according to the above embodiments of the present invention is shown.

[0042] Labeling Explanation: 1. Ventilation Detection Equipment; 10. Air Supply Control Components; 11. Air Pressure Regulation Module; 12. Flow Control Module; 13. Flow Detection Module; 14. Signal Control Module; 20. Clamping Fixture; 30. Air Pressure Detection Module; 40. Judgment Module; 41. Data Acquisition Module; 42. Preprocessing Module; 421. Pre-sorting Module; 422. Pre-screening Module; 423. Pre-determination Module; 43. Mixing Processing Module; 431. Mixed Sorting Module; 432. Mixed Screening Module; 433. Qualification Determination Module; 44. Threshold Determination Module; 90. Device to be Inspected; 91. Cover Plate; 92. Base; 93. Air Inlet Connector. Detailed Implementation

[0043] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0044] It should be noted that when a component is described as being "set on" or "mounted on" another component, it can be directly on the other component or it can be interposed within another component. When a component is considered to be "set on" another component, it can be directly set on the other component or it may also be interposed within another component. When a component is considered to be "fixed to" another component, it can be directly fixed to the other component or it may also be interposed within another component.

[0045] Those skilled in the art should understand that, in the disclosure of this invention, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limiting this invention.

[0046] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the specification of this invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "or / and" as used herein includes any and all combinations of one or more of the associated listed items.

[0047] Considering that existing testing systems not only employ complex conventional testing methods, but also require different testing methods for the three performance indicators mentioned above, making them unsuitable for simultaneous and comprehensive incoming material inspection of aeration devices, this application proposes an aeration testing device and method to address these issues. This method can determine whether the three performance indicators of an aeration device are qualified through a single aeration test, thereby improving work efficiency.

[0048] Specifically, see the attached document. Figures 1 to 3 As shown, one embodiment of the present invention provides a ventilation testing device 1 for performing performance testing on a device 90 under test. It is worth noting that, as... Figure 1 As shown, the device 90 to be tested mentioned in this application may refer to, but is not limited to, an aeration device applied to disposable reaction bags. It may include a cover plate 91 with multiple micropores, a base 92, and an air inlet connector 93. The base 92 is bonded to the cover plate 91 to form an aeration chamber communicating with the micropores. The air inlet connector 93 is fixed to the base 92 to allow air to enter the aeration chamber. The overall aeration performance, sealing performance, and strength performance of the micropores of the aeration device are then tested using the ventilation testing equipment 1 of this application. It is understood that the sealing performance mentioned in this application refers to the sealing between the components of the aeration device, and the strength performance refers to the adhesive strength between the cover plate 91 and the base 92.

[0049] More specifically, such as Figure 2 As shown, the ventilation testing device 1 may include a gas supply control component 10, a clamping fixture 20, a pressure detection module 30, and a judgment module 40. The gas supply control component 10 controls the pressure and flow rate of the gas supplied via a gas source (not shown) to output a preset flow rate of gas at a preset pressure. The clamping fixture 20 is ventilably connected to the gas supply control component 10 and is used to ventilably clamp the device under test 90. The pressure detection module 30 is ventilably connected to the clamping fixture 20 and is used to detect the inlet pressure of the device under test 90 clamped by the clamping fixture 20 to obtain the inlet pressure data of the device under test 90. The judgment module 40 is electrically connected to the pressure detection module 30 and is used to receive the inlet pressure data of the device under test 90 and compare it with a qualified pressure threshold range to determine whether the device under test 90 is qualified.

[0050] It is worth noting that for the device 90 under inspection, such as an aeration device, if all three performance indicators (including overall micropore ventilation performance, sealing performance, and adhesive strength performance) are qualified, the device 90 is qualified, and the detected air inlet pressure data of the device 90 will be within the qualified air pressure threshold range. However, if any one of the three performance indicators is unqualified, the device 90 is unqualified, and the detected air inlet pressure data of the device 90 will differ significantly from the qualified air pressure threshold range. This is because if one of the micropores in the aeration device is blocked or the sealing of the aeration device is poor, its air inlet pressure value will change significantly. Therefore, the ventilation detection device 1 of this application does not need to test whether a specific performance indicator is qualified. It only needs to perform an air inlet test to simultaneously test whether the device 90 is qualified in all three performance indicators, realizing large-scale inspection at the time of receipt and improving work efficiency.

[0051] Furthermore, the qualified air pressure threshold range mentioned in this application was determined through extensive testing in the early stages. Subsequently, it is only necessary to compare the inlet pressure data of each device 90 under test with the qualified air pressure threshold range. When the inlet pressure data is within the qualified air pressure threshold range, the corresponding device 90 under test is determined to meet the requirements and is qualified, which greatly improves the testing efficiency.

[0052] For example, such as Figure 2 As shown, the gas supply control component 10 of this application may include a pressure regulating module 11, a flow control module 12, a flow detection module 13, and a signal control module 14. The pressure regulating module 11 is ventilably connected to the flow control module 12, the flow control module 12 is ventilably connected to the flow detection module 13, the flow detection module 13 is ventilably connected to the clamping fixture 20, and the signal control module 14 is electrically connected to the flow control module 12 and the flow detection module 13. The pressure regulating module 11 is ventilably connected to an external gas source (not shown) to regulate the pressure of the gas supplied via the external gas source to the preset pressure, so that the gas is delivered to the flow control module 12 according to the preset pressure. The flow control module 12 is used to regulate the flow rate of the gas delivered via the pressure regulating module 11. The flow detection module 13 is used to detect the flow rate of the gas regulated by the flow control module 12 to obtain flow data. The signal control module 14 is used to receive the flow data detected by the flow detection module 13, and output a control signal to the flow control module 12 according to the flow data, so as to control the flow control module 12 to adjust the flow rate of the gas accordingly, so that the gas supply control component 10 outputs the gas at the preset flow rate to the clamping fixture 20 under the preset gas pressure.

[0053] Optionally, the air pressure regulating module 11 can be connected to an external air source and the flow control module 12 via an air pipe; the flow control module 12 can be connected to the flow detection module 13 via an air pipe; the flow detection module 13 can be connected to the clamping fixture 20 and the air pressure detection module 30 via an air pipe and a T-junction. The signal control module 14 can be connected to the flow control module 12 and the flow detection module 13 via a wire; the judgment module 40 can be connected to the air pressure detection module 30 via a wire.

[0054] Optionally, the flow control module 12 may include a gas valve disposed in a gas pipe between the pressure regulating module 11 and the flow detection module 13. The signal control module 14 can control the opening of the gas valve by outputting an analog signal (such as a 4mA to 20mA signal) to achieve flow control, so that the gas is output at a constant preset flow rate. It is understood that the constant output mentioned in this application does not mean that the output flow rate of the gas is constant, but rather that the output flow rate is maintained within a stable fluctuation.

[0055] It is worth noting that the maximum ventilation volume varies for different sizes of aeration devices (i.e., the device under test 90). This application determines the ventilation volume supplied to the device under test 90 based on its size, and adjusts the pressure of the supplied gas by controlling the pressure regulating module 11 and the signal control module 14. While the gas flow rate is not manually changed during this process, it does exhibit some fluctuation, especially when the gas is first introduced. Therefore, this application requires pressure detection only after five minutes of ventilation, i.e., after the gas pressure has stabilized. Furthermore, since stable gas pressure does not mean a constant value but rather a steady-state fluctuation, the pressure detection module 30 of the ventilation detection device 1 of this application records sample data every minute when the gas pressure is stable, repeating this operation five times. The average of the five sample data is taken as the inlet pressure value of the device under test 90, which helps improve detection accuracy and reduce errors. It is understandable that if one of the micropores in the device under test 90 is blocked, its air intake pressure will change significantly. This application can detect the data fluctuation, and the final detected average pressure will be greater than the pressure fluctuation value during normal testing.

[0056] Optionally, the ventilation testing device 1 introduces air at the maximum ventilation rate of the device under test 90 during testing. This maximum ventilation rate is equal to 0.2 times the maximum culture volume of the reaction bag equipped with the device under test 90, ensuring testing accuracy. It is understood that the air pressure and flow rate used in the ventilation testing device 1 of this application are lower than the design limit for structural failure, but reach the maximum value under actual product operating conditions. Furthermore, by ventilating for ten to twenty minutes, product performance is verified without damaging the product structure. In other words, the ventilation rate of the device under test 90 in actual use is far less than the maximum ventilation rate, which helps ensure the performance of the device in subsequent use after testing.

[0057] Optionally, the clamping fixture 20 is a quick clamping fixture customized according to the air inlet connector 93 of the device under inspection 90, which can realize the quick clamping function of the device under inspection 90 and help improve testing efficiency.

[0058] Optionally, the air pressure detection module 30 is mainly composed of a high-precision air pressure sensor, used to detect the air intake pressure of the device under test 90 and transmit the data to the judgment module 40 in real time.

[0059] It is worth noting that the judgment module 40 of this application can use statistical methods to determine the qualified air pressure threshold range in the early stage of detection, so as to judge whether the device to be tested 90 is a qualified product based on the qualified air pressure threshold range, thereby improving detection efficiency and accuracy.

[0060] For example, such as Figure 3 As shown, the judgment module 40 may include a data acquisition module 41, a preprocessing module 42, a mixing module 43, and a threshold determination module 44, which are communicatively connected to each other. The data acquisition module 41 acquires N batches of intake pressure data, where each batch includes the intake pressure values ​​of M devices 90 to be inspected, detected by the pressure detection module 30. The preprocessing module 42 preprocesses the N batches of intake pressure data separately to obtain N batches of pre-qualified data. The mixing module 43 mixes the N batches of pre-qualified data to obtain N-1 batches of qualified data. The threshold determination module 44 determines the threshold value based on the N-1th qualified pressure range Q corresponding to the N-1th batch of qualified data. N-1 ±Y is the acceptable air pressure threshold range.

[0061] Optionally, N mentioned in this application may, but is not limited to, be a positive integer greater than or equal to 10; M mentioned in this application may, but is not limited to, be a positive integer greater than or equal to 100. It is understood that the N batches of intake pressure data all include the same number of intake pressure values ​​of the devices 90 to be tested.

[0062] Optionally, such as Figure 3As shown, the preprocessing module 42 may include a pre-sorting module 421, a pre-screening module 422, and a pre-determination module 423 that are communicatively connected to each other. The pre-sorting module 421 is used to sort all intake pressure values ​​in the i-th batch of intake pressure data by size, where i is a positive integer greater than or equal to 1 and less than or equal to N. The pre-screening module 422 is used to filter intake pressure values ​​with a preset proportion X from the sorted i-th batch of intake pressure data, and then calculate the average value to obtain the i-th pre-qualified average value P. i The pre-determination module 423 is used to determine the i-th batch of intake pressure data that falls within the i-th pre-qualified pressure range P. i The intake pressure value within ±Y is determined as the i-th batch of pre-qualified data, thus obtaining N batches of pre-qualified data.

[0063] Optionally, the preset ratio X can be between 80% and 90%. Preferably, the preset ratio X is implemented as 90%, that is, the pre-screening module 422 is used to calculate the average value of the middle 90%*M intake pressure values ​​in each batch of sorted intake pressure data to obtain the corresponding pre-qualified average value. It can be understood that the middle 90%*M intake pressure values ​​in each batch of intake pressure data can refer to the intake pressure values ​​remaining after removing the 5%*M first intake pressure values ​​(such as smaller intake pressure values) and the 5%*M last intake pressure values ​​(such as larger intake pressure values) in each batch of sorted intake pressure data.

[0064] Optionally, the i-th pre-qualified pressure range P i The Y value in ±Y refers to a margin, which is not limited to being implemented as 2%. It is understood that the number of devices 90 to be inspected corresponding to all intake pressure values ​​in the i-th batch of pre-qualification data is no longer limited to 90% of the total number of devices 90 to be inspected corresponding to the i-th batch of intake pressure data. That is, the number of intake pressure values ​​in the i-th batch of pre-qualification data can be less than 90%*M, greater than 90%*M, or even equal to 90%*M. This application will not elaborate further on this.

[0065] Optionally, such as Figure 3As shown, the hybrid processing module 43 may include a hybrid sorting module 431, a hybrid screening module 432, and a qualification determination module 433, which are communicatively connected to each other. The hybrid sorting module 431 sorts all intake pressure values ​​in the first batch of pre-qualified data and the second batch of pre-qualified data by size. The hybrid screening module 432 filters intake pressure values ​​with a preset intermediate ratio X from the sorted first batch of pre-qualified data and the second batch of pre-qualified data, and calculates the average value to obtain a first qualified average value Q1. The qualification determination module 433 determines the intake pressure values ​​in the first batch of pre-qualified data and the second batch of pre-qualified data that fall within the first qualified pressure range Q1±Y as the first batch of qualified data.

[0066] Following this, the mixed sorting module 431 is further used to sort all intake pressure values ​​in the j-th batch of qualified data and the (j+2)-th batch of pre-qualified data by size, where j is a positive integer greater than or equal to 1 and less than or equal to N-2. The mixed screening module 432 is further used to screen intake pressure values ​​of a preset proportion X from the sorted j-th batch of qualified data and the (j+2)-th batch of pre-qualified data, and to calculate the average value to obtain the (j+1)-th qualified average value Q. j+1 The conformity determination module 433 is further used to determine the conformity data of the j-th batch and the pre-conformity data of the j+2-th batch that fall within the conformity pressure range Q of the j+1-th batch. j+1 The intake pressure value within ±Y is determined as the (j+1)th batch of qualified data. Thus, when the mixing processing module 43 of this application processes data from j=1 to j=N-2, the mixing screening module 432 will obtain the (N-1)th batch of qualified average data with respect to the (N-1)th batch of qualified data. N-1 Thus, the (N-1)th qualified pressure range Q is obtained. N-1 ±Y, so that the threshold determination module 44 can determine the (N-1)th qualified pressure range Q N-1 ±Y is the acceptable air pressure threshold range.

[0067] In other words, the maximum value of this acceptable air pressure threshold range is equal to the average value Q of the (N-1)th acceptable air pressure. N-1 The sum of the remainder Y, i.e., Q N-1 +Y; The minimum value of this acceptable air pressure threshold range is equal to the average value Q of the (N-1)th acceptable air pressure. N-1 The difference between the balance Y and the balance Y, i.e., Q N-1 -Y.

[0068] In summary, the ventilation testing equipment 1 of this application does not require testing whether a specific performance indicator of the device under test 90 is qualified. It can simultaneously test whether the device under test 90 is qualified in all three performance indicators, realizing large-scale inspection of incoming materials. The overall structure of the equipment is simple, easy to use, and has high testing accuracy.

[0069] It is worth mentioning that, according to another aspect of this application, such as Figure 4 As shown, one embodiment of this application further provides a ventilation detection method, which may include the steps of:

[0070] S100: Controls the pressure and flow rate of the gas supplied by the gas source, so as to output the gas at a preset flow rate under a preset pressure to the device to be inspected by the clamping fixture.

[0071] S200: Detect the intake pressure of the device under test clamped by the clamping fixture to obtain the intake pressure data of the device under test; and

[0072] S300: Receives the inlet pressure of the device under test and compares it with the qualified air pressure threshold range to determine whether the device under test is qualified.

[0073] It is worth noting that, according to one embodiment of this application, such as Figure 5 As shown, step S300 of the ventilation detection method may further include the following steps:

[0074] S310: Acquire N batches of intake pressure data, where each batch of intake pressure data includes the intake pressure values ​​of M devices under test detected by the air pressure detection module;

[0075] S320: Preprocess the N batches of intake pressure data respectively to obtain N batches of pre-qualified data;

[0076] S330: Mix the N batches of pre-qualified data to obtain N-1 batches of qualified data; and

[0077] S340: The N-1th qualified pressure range Q corresponding to the N-1th batch of qualified data. N-1 ±Y is the acceptable air pressure threshold range.

[0078] In one example of this application, such as Figure 6 As shown, step S320 of the ventilation detection method may include the following steps:

[0079] S321: Sort all intake pressure values ​​in the i-th batch of intake pressure data by size, where i is a positive integer greater than or equal to 1 and less than or equal to N;

[0080] S322: Select the intake pressure values ​​of the intermediate preset proportion X from the sorted intake pressure data of the i-th batch, and calculate the average value to obtain the i-th pre-qualified average value P. i ;as well as

[0081] S323: The intake pressure data in the i-th batch that falls within the i-th pre-qualified pressure range P... iThe intake pressure value within ±Y is determined as the pre-qualified data for the i-th batch.

[0082] In one example of this application, such as Figure 7 As shown, step S330 of the ventilation detection method may include the following steps:

[0083] S331: Sort all intake pressure values ​​in the first batch of pre-qualified data and the second batch of pre-qualified data by size.

[0084] S332: Select the intake pressure value of the intermediate preset ratio X from the sorted first batch of pre-qualified data and the second batch of pre-qualified data, and calculate the average value to obtain the first qualified average value Q1; and

[0085] S333: The intake pressure values ​​within the first qualified pressure range Q1±Y in the first batch of pre-qualified data and the second batch of preset qualified data are determined as the first batch of qualified data.

[0086] In addition, such as Figure 7 As shown, step S330 of the ventilation detection method may further include the following step after step S333:

[0087] S334: Sort all intake pressure values ​​in the j-th batch of qualified data and the (j+2)-th batch of pre-qualified data by size, where j is a positive integer greater than or equal to 1 and less than or equal to N-2;

[0088] S335: Select the intake pressure value of the intermediate preset ratio X from the sorted qualified data of the j-th batch and the pre-qualified data of the (j+2)-th batch, and calculate the average value to obtain the (j+1)-th qualified average value Q. j+1 ;as well as

[0089] S336: Among the qualified data from the j-th batch and the pre-qualified data from the (j+2)-th batch, those falling within the (j+1)-th qualified pressure range Q... j+1 The intake pressure value within ±Y is determined as the qualified data for the (j+1)th batch.

[0090] For example, the process of determining the qualified air pressure threshold range in the early stage is as follows: First, select one hundred devices to be tested as the first batch of devices to be tested, test each device to obtain one hundred inlet pressure data points as the first batch of inlet pressure data; sort the one hundred inlet pressure values ​​in the first batch of inlet pressure data, take the average of the middle 90% of the data to obtain the first pre-qualified average value P1, and determine the first pre-qualified pressure range P. iThe intake pressure value within ±2% is the first batch of pre-qualified data. This first batch of pre-qualified data includes multiple intake pressure values ​​within the first pre-qualified pressure range P1±2% and their corresponding device numbers to be inspected, to obtain the first batch of pre-qualified products (at this time, the number of pre-qualified products is no longer limited to 90% of the total number). Next, the same number of devices to be inspected are tested in the same way to obtain the second batch of pre-qualified data. Then, the pre-qualified data of the first and second batches are mixed and the same method is used to obtain a new average value as the first qualified average value Q1, and the intake pressure value within the first qualified pressure range Q1±2% is determined to be the first batch of qualified data. Then, the first batch of qualified data is mixed with the third batch of pre-qualified data and the same method is used to obtain a new average value as the second qualified average value Q2, and the intake pressure value within the second qualified pressure range Q2±2% is determined to be the second batch of qualified data. This process is repeated until ten batches of devices to be inspected (each batch of devices to be inspected includes one hundred devices to be inspected), to obtain the final qualified pressure range Q9±2% as the qualified air pressure threshold range. In other words, when the number of tests reaches one thousand, the qualified pressure range Q9±2% obtained by the above method is used as the qualified air pressure threshold range (the maximum threshold is Q9+2%, and the minimum threshold is Q9-2%) as the basis for subsequent determination of whether the product is qualified, which can improve the testing efficiency and accuracy.

[0091] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0092] The above embodiments merely illustrate several implementation methods of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A ventilation testing device, used for performance testing of the device under test, characterized in that, The ventilation detection device includes: Gas supply control component, used to control the pressure and flow rate of gas supplied via gas source, so as to output gas at a preset flow rate under a preset pressure; A clamping fixture, which is ventilably connected to the air supply control component, is used to ventilably clamp the device to be inspected; A pneumatic pressure detection module, ventilably connected to the clamping fixture, is used to detect the inlet pressure of the device under test clamped by the clamping fixture, thereby obtaining inlet pressure data of the device under test; and The judgment module is electrically connected to the air pressure detection module and is used to receive the air pressure data of the device under test and compare it with the qualified air pressure threshold range to determine whether the device under test is qualified. The judgment module includes a data acquisition module, a preprocessing module, a mixing processing module, and a threshold determination module that are communicatively connected to each other. The data acquisition module acquires N batches of intake pressure data, where each batch includes intake pressure values ​​of M devices to be inspected, detected by the pressure detection module. The preprocessing module preprocesses the N batches of intake pressure data separately to obtain N batches of pre-qualified data. The mixing processing module mixes the N batches of pre-qualified data to obtain N-1 batches of qualified data. The threshold determination module determines the N-1th qualified pressure range Q corresponding to the (N-1th)th batch of qualified data. N-1 ±Y is used as the acceptable air pressure threshold range; The hybrid processing module includes a hybrid sorting module, a hybrid screening module, and a qualification determination module that are communicatively connected to each other. The hybrid sorting module is used to sort all intake pressure values ​​in the first batch of pre-qualified data and the second batch of pre-qualified data by size. The hybrid screening module is used to select intake pressure values ​​with a preset ratio X from the sorted first batch of pre-qualified data and the second batch of pre-qualified data, and calculate the average value to obtain the first qualified average value Q1. The qualification determination module is used to determine the intake pressure values ​​in the first batch of pre-qualified data and the second batch of pre-qualified data that are within the first qualified pressure range Q1±Y as the first batch of qualified data. The hybrid sorting module is further used to sort all intake pressure values ​​in the j-th batch of qualified data and the (j+2)-th batch of pre-qualified data by size, where j is a positive integer greater than or equal to 1 and less than or equal to N-2; the hybrid screening module is further used to screen intake pressure values ​​of a preset proportion X from the sorted j-th batch of qualified data and the (j+2)-th batch of pre-qualified data, and calculate the average value to obtain the (j+1)-th qualified average value Q. j+1 The qualification determination module is further used to determine the qualified data of the j-th batch and the pre-qualified data of the (j+2)-th batch that fall within the qualified pressure range Q of the (j+1)-th batch. j+1 The intake pressure value within ±Y is determined as the qualified data for the (j+1)th batch.

2. The ventilation detection device according to claim 1, characterized in that, The preprocessing module includes a pre-sorting module, a pre-screening module, and a pre-determination module that are communicatively connected to each other. The pre-sorting module is used to sort all the intake pressure values ​​in the i-th batch of intake pressure data by size, where i is a positive integer greater than or equal to 1 and less than or equal to N. The pre-screening module is used to filter the intake pressure values ​​of the middle preset proportion X from the sorted i-th batch of intake pressure data, and to calculate the average value to obtain the i-th pre-qualified average value P. i ; The pre-determination module is used to determine the i-th batch of intake pressure data that falls within the i-th pre-qualified pressure range P. i The intake pressure value within ±Y is determined as the pre-qualified data for the i-th batch.

3. The ventilation detection device according to claim 1 or 2, characterized in that, The gas supply control component includes a pressure regulating module, a flow control module, a flow detection module, and a signal control module. The pressure regulating module is connected to the flow control module via a gas pipe. The flow control module is connected to the flow detection module via a gas pipe. The flow detection module is connected to the clamping fixture and the pressure detection module via a gas pipe and a tee. The signal control module is connected to the flow control module and the flow detection module via an electrical wire.

4. A ventilation detection method, characterized in that, Including the following steps: Control the pressure and flow rate of the gas supplied by the gas source to output a preset flow rate of gas at a preset pressure to the device to be inspected, which is clamped by the clamping fixture. The air intake pressure of the device under test, which is clamped by the clamping fixture, is detected to obtain the air intake pressure data of the device under test; as well as Receive the inlet pressure data of the device under test and compare it with the qualified air pressure threshold range to determine whether the device under test is qualified. The step of receiving the intake pressure data of the device under test and comparing it with the qualified air pressure threshold range to determine whether the device under test is qualified further includes the following steps: Obtain N batches of intake pressure data, where each batch of intake pressure data includes the intake pressure values ​​of M devices under test detected by the air pressure detection module; The N batches of intake pressure data were preprocessed to obtain N batches of pre-qualified data. The N batches of pre-qualified data are mixed to obtain N-1 batches of qualified data; as well as The qualified pressure range Q corresponding to the qualified data of the (N-1)th batch is... N-1 ±Y is used as the acceptable air pressure threshold range; The step of mixing the N batches of pre-qualified data to obtain N-1 batches of qualified data includes the following steps: Sort all intake pressure values ​​in the first batch of pre-qualified data and the second batch of pre-qualified data by size. The intake pressure value of the intermediate preset ratio X is selected from the sorted first batch of pre-qualified data and the second batch of pre-qualified data, and the average value is calculated to obtain the first qualified average value Q1. The intake pressure values ​​within the first qualified pressure range Q1±Y in the first batch of pre-qualified data and the second batch of pre-qualified data are determined as the first batch of qualified data. Sort all intake pressure values ​​in the j-th batch of qualified data and the (j+2)-th batch of pre-qualified data by size, where j is a positive integer greater than or equal to 1 and less than or equal to N-2; From the sorted batch j of qualified data and the (j+2)th batch of pre-qualified data, the intake pressure value of the intermediate preset proportion X is selected, and the average value is calculated to obtain the (j+1)th qualified average value Q. j+1 ;as well as The qualified data from the j-th batch and the pre-qualified data from the (j+2)-th batch fall within the qualified pressure range Q of the (j+1)-th batch. j+1 The intake pressure value within ±Y is determined as the qualified data for the (j+1)th batch.

5. The ventilation detection method according to claim 4, characterized in that, The step of preprocessing the N batches of intake pressure data to obtain N batches of pre-qualified data includes the following steps: Sort all intake pressure values ​​in the i-th batch of intake pressure data by size, where i is a positive integer greater than or equal to 1 and less than or equal to N; From the sorted intake pressure data of the i-th batch, the intake pressure values ​​of the intermediate preset proportion X are selected, and the average value is calculated to obtain the i-th pre-qualified average value P. i ; as well as The intake pressure data in the i-th batch that falls within the i-th pre-qualified pressure range P i The intake pressure value within ±Y is determined as the pre-qualified data for the i-th batch.

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