Air tightness detection system and method

Abstract

The invention discloses an air tightness detection system and method, the air tightness detection system comprises a box body, a sound generation unit and a detection unit, the sound generation unit comprises an inflation unit, the inflation unit is located outside the box body, the inflation unit is communicated with the box body, and the inflation unit is configured to inflate gas into the box body to generate ultrasonic waves; the detection unit is arranged outside the box body and is configured to detect ultrasonic audio parameters generated by the box body and compare the ultrasonic audio parameters with preset parameters. According to the scheme provided by the invention, the box body is inflated through the inflation unit to generate ultrasound, at the moment, the detection unit detects the corresponding ultrasonic audio parameter and compares the ultrasonic audio parameter with the preset parameter, and when the ultrasonic audio parameter is greater than the preset parameter, the airtightness of the box body is judged to be invalid, so that the overall detection process is simple, the efficiency is high, and the detection accuracy is high. And convenience is brought to detection personnel.

Description

Technical Field

[0001] This application relates to the field of energy storage container technology, and in particular to an airtightness testing system and method. Background Technology

[0002] Outdoor water-cooled cabinets are widely used in various fields, with the automotive battery energy storage industry being the most common application. Today, the new energy industry is booming, and demand is increasing year by year. Since the energy inside the outdoor water-cooled cabinet directly supplies power to the battery cells, its airtightness needs to be tested.

[0003] The airtightness testing system in the relevant technology is cumbersome to operate and inefficient. Summary of the Invention

[0004] In view of the above problems, this application provides an airtightness testing system and method, which can solve the problems of cumbersome operation steps and low efficiency of existing airtightness testing systems.

[0005] To address the aforementioned technical problems, this application proposes an airtightness detection system, comprising:

[0006] Box; A sound generating unit, the sound generating unit including an inflation unit located outside the housing and connected to the housing, configured to inflate gas into the housing to generate ultrasound; A detection unit is disposed outside the enclosure and configured to detect the ultrasonic audio parameters generated by the enclosure and compare the ultrasonic audio parameters with preset parameters.

[0007] In the technical solution of this application embodiment, air is inflated into the box by an inflation unit to generate ultrasound. At this time, the detection unit detects the corresponding ultrasound audio parameters and compares the ultrasound audio parameters with preset parameters. When the ultrasound audio parameters are greater than the preset parameters, it is determined that the airtightness of the box has failed. The overall detection process is simple and efficient, which brings convenience to the use of the testing personnel.

[0008] In some embodiments, the inflation unit is connected to the housing via an inflation pipe, and a control valve is provided on the inflation pipe.

[0009] In this way, the gas pressure of the gas injected into the box can be easily adjusted by controlling the valve, thus preventing the box from being damaged due to excessive gas pressure.

[0010] In some embodiments, the sound generating unit includes at least one sound source module, which is disposed inside the housing.

[0011] In this way, ultrasound can be generated directly inside the enclosure through the sound source module.

[0012] In some embodiments, the sound generating unit includes a plurality of sound source modules, all of which are disposed on the door to be tested inside the housing, and the plurality of sound source modules are capable of forming an equal sound pressure field in the detection area of ​​the door to be tested.

[0013] Because the initial ultrasonic sound pressure intensity varies in different areas of the door under test—that is, areas with high sound pressure will produce a strong leakage signal even for minor leaks, while areas with low sound pressure may show a leakage signal intensity below the threshold even for obvious leaks, leading to missed detections—a uniform sound pressure field can ensure that the initial ultrasonic sound pressure amplitude of the areas under test on the door remains consistent. This provides a unified benchmark for leak detection at different locations, avoiding misjudgments and missed detections caused by benchmark differences, thereby improving the accuracy of the detection.

[0014] In some embodiments, the detection unit includes a signal acquisition unit and a control and data processing module, wherein the signal acquisition unit is electrically connected to the control and data processing module; The signal acquisition device is configured to acquire ultrasonic audio parameters generated by the enclosure, and / or the signal acquisition device is configured to acquire visual signals from the enclosure, and the control and data processing module is configured to compare the ultrasonic audio parameters with preset parameters.

[0015] In this way, the corresponding ultrasonic audio parameters are collected by the signal acquisition device and sent to the control and data processing module. The control and data processing module then compares the received ultrasonic audio parameters with preset parameters to quickly determine whether the airtightness of the enclosure has failed. At the same time, the control and data processing module can identify the location of the failure based on the corresponding visual signals.

[0016] In some embodiments, the airtightness detection system further includes a mobile support unit connected to the signal acquisition unit and configured to move the signal acquisition unit.

[0017] In this way, the signal acquisition unit can be easily moved by the mobile carrier unit to collect signals from different areas.

[0018] In some embodiments, the airtightness detection system further includes a visual calibration unit adapted to the mobile carrier unit and configured to acquire motion trajectory images of the mobile carrier unit and transmit the trajectory image data to the control and data processing module.

[0019] The actual movement trajectory of the mobile carrier unit is detected in real time by the visual calibration unit and sent to the control and data processing module. The control and data processing module compares the actual movement trajectory with the preset trajectory and dynamically corrects the trajectory deviation to ensure that the mobile carrier unit drives the signal acquisition device to move strictly according to the planned path. This ensures that the signal acquisition device can cover the detection position point by point and area by area, eliminate detection blind spots, and adapt to the needs of grid-based detection.

[0020] In some embodiments, the airtightness detection system further includes a positioning calibration unit adapted to the mobile carrier unit and configured to acquire the position information of the mobile carrier unit and transmit it to the control and data processing module.

[0021] In this way, the positioning calibration unit acquires the absolute spatial position information of the mobile carrier unit and the signal acquisition device in real time, corrects accumulated positioning errors, and ensures that their position coordinates within the detection space are accurate. This ensures that the signal acquisition device can accurately dock at the corresponding position of each grid cell in the gridded view, guaranteeing that the sound pressure signal and visual signal acquisition positions of each sampling point are consistent with the preset coordinates, and avoiding data distortion caused by positional deviations. Simultaneously, the mobile carrier unit is prone to accumulating positioning errors during long-term reciprocating motion; positioning calibration can correct these errors in real time, ensuring the stability of detection accuracy throughout the entire process.

[0022] In some embodiments, the airtightness detection system further includes a pressure detection module, which is electrically connected to the control and data processing module; The pressure detection module is located outside the enclosure, and / or the pressure detection module is located inside the enclosure.

[0023] This makes it easier to monitor the pressure inside the chamber.

[0024] In some embodiments, the detection unit further includes a display module, which is electrically connected to the control and data processing module.

[0025] In this way, the corresponding detection structure is sent to the display module through the control and data processing module for viewing.

[0026] In some embodiments, the detection unit further includes an alarm module, which is electrically connected to the control and data processing module.

[0027] This makes it easier to promptly alert the system when a problem is detected.

[0028] This application also proposes an airtightness testing method, applied to an airtightness testing system as described in any one of the embodiments of this application, the method comprising: Ultrasonic waves are generated inside the enclosure by a sound generating unit; Acquire audio parameters and visual signals around the enclosure; The audio parameter is compared with the preset parameter. If the audio parameter is greater than the preset parameter, the airtightness of the enclosure is determined to be faulty, and the fault location is marked according to the visual signal.

[0029] In some embodiments, the acquisition of audio parameters and visual signals around the enclosure includes: The trajectory and positioning of the detection actuator are calibrated. The calibrated detection actuator synchronously collects audio parameters and visual signals around the enclosure.

[0030] In some embodiments, after marking the failure location, the method further includes: The judgment result and the location of the failure are sent to the display module.

[0031] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description

[0032] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the embodiments described below. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings: Figure 1 This is a schematic diagram of the structure of an airtightness detection system provided in some embodiments of this application; Figure 2 A schematic diagram of the structure of yet another airtightness detection system provided in some embodiments of this application; Figure 3 This is a schematic diagram of the arrangement of sound source modules provided in some embodiments of this application; Figure 4 A schematic diagram showing the arrangement of the pressure detection module on the housing according to some embodiments of this application; Figure 5 This is a schematic flowchart of an airtightness testing method provided in some embodiments of this application.

[0033] The reference numerals in the detailed embodiments are as follows: 10. Enclosure; 101. Door to be tested; 20. Inflation unit; 201. Inflation pipe; 30. Detection unit; 301. Signal acquisition unit; 302. Control and data processing module; 40. Pressure detection module; 50. Moving load-bearing unit; 60. Visual calibration unit; 70. Positioning calibration unit; 80. Sound source module. Detailed Implementation

[0034] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0035] 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 application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0036] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0037] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0038] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0039] In the description of the embodiments of this application, the term "multiple" refers to two or more (including two), similarly, "multiple sets" refers to two or more (including two sets), and "multiple pieces" refers to two or more (including two pieces).

[0040] In the description of the embodiments of this application, the technical terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" 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 the embodiments of this application and simplifying the description, and are not intended to 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, they should not be construed as limitations on the embodiments of this application.

[0041] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0042] Outdoor water-cooled cabinets are widely used in various fields, with the automotive battery energy storage industry being the most common application. Today, the new energy industry is gradually rising, and demand is increasing year by year. Since outdoor water-cooled cabinets directly supply energy to the battery cells, the requirements for their performance, such as waterproofing, insulation, and pressure resistance, are extremely high.

[0043] Among these factors, waterproofing is of paramount importance because the cabinet is typically placed outdoors year-round. Water-cooled cabinets usually require a waterproofing test after the door is assembled. First, the cabinet needs to be transported to a designated area, and then workers will spray water from all directions at regular intervals using hoses. After that, inspectors will check the cabinet for any signs of leakage and dry it with an air gun. These steps are cumbersome and inefficient.

[0044] Based on the above considerations, in order to solve the problem of cumbersome and inefficient operation steps in the use of existing cabinet airtightness testing, this application proposes an airtightness testing system. The system includes a cabinet, a sound generating unit, and a detection unit. The sound generating unit includes an inflation unit located outside the cabinet and connected to the cabinet. The inflation unit is configured to inflate gas into the cabinet to generate ultrasound. The detection unit is located outside the cabinet and is configured to detect the ultrasonic audio parameters generated by the cabinet and compare the ultrasonic audio parameters with preset parameters.

[0045] In the technical solution of this application embodiment, air is inflated into the box by an inflation unit to generate ultrasound. At this time, the detection unit detects the corresponding ultrasound audio parameters and compares the ultrasound audio parameters with preset parameters. When the ultrasound audio parameters are greater than the preset parameters, it is determined that the airtightness of the box has failed. The overall detection process is simple and efficient, which brings convenience to the use of the testing personnel.

[0046] According to some embodiments of this application, this application provides an airtightness detection system, such as... Figure 1 As shown, the airtightness testing system includes a housing 10, a sound generating unit, and a detection unit 30. The sound generating unit includes an inflation unit 20, which is located outside the housing 10 and communicates with the housing 10. The inflation unit 20 is configured to fill the housing 10 with gas to generate ultrasound. The detection unit 30 is located outside the housing 10 and is configured to detect the ultrasonic audio parameters generated by the housing 10 and compare the ultrasonic audio parameters with preset parameters.

[0047] In this embodiment, the box 10 may have a door. After the door is closed, the box 10 is a closed structure.

[0048] In this embodiment, the inflation unit 20 can be an air pump, blower, etc., and is not limited here. During use, the inflation unit 20 inflates the housing 10. The pressure difference between the inside and outside of the housing 10 drives the gas through the leaks on the housing 10, generating noise. This noise becomes ultrasound after passing through the waterproof layer on the surface of the housing 10. For example, after the inflation unit 20 inflates the housing 10, the gas generates noise as it passes through the leaks on the housing 10. This noise becomes ultrasound after passing through the waterproof layer on the surface of the housing 10, with a frequency range of 30kHz-50kHz, and can therefore be detected by the detection unit 30.

[0049] In this embodiment, the detection unit 30 may include a signal acquisition device and a host computer. The signal acquisition device acquires the ultrasonic audio parameters outside the enclosure 10 and then transmits the ultrasonic audio parameters to the host computer. The host computer compares the received ultrasonic audio parameters with preset parameters. For example, if the frequency band of the ultrasonic audio parameters is 30kHz-50kHz and the preset parameter frequency band is 20kHz, then it is determined that the airtightness of the enclosure 10 has failed.

[0050] In the technical solution of this application embodiment, the chamber 10 is inflated by the inflation unit 20 to generate ultrasound. At this time, the detection unit 30 detects the corresponding ultrasound audio parameters and compares the ultrasound audio parameters with preset parameters. When the ultrasound audio parameters are greater than the preset parameters, it is determined that the airtightness of the chamber 10 has failed. The overall detection process is simple and efficient, which brings convenience to the testing personnel.

[0051] According to some embodiments of this application, such as Figure 1 As shown, the inflation unit 20 is connected to the housing 10 via an inflation pipe 201, and a control valve is provided on the inflation pipe 201.

[0052] The control valve in this embodiment can be an electronic valve, a pneumatic valve, etc., and is not limited here.

[0053] During use, the amount of gas filled into the chamber 10 can be easily adjusted by opening or closing the control valve on the inflation pipe 201, thereby facilitating the adjustment of the air pressure inside the chamber 10 and preventing the chamber 10 from being damaged due to excessive air pressure.

[0054] According to some embodiments of this application, such as Figure 2 As shown, the sound generating unit includes at least one sound source module 80, which is disposed inside the housing 10.

[0055] In this embodiment, the sound source module 80 can be a sound source generator, etc., and is not limited here.

[0056] By placing a sound source module 80 inside the enclosure 10, and setting the audio emitted by the sound source module 80 to 40kHz-100kHz, when the detection unit 30 detects the audio in this frequency band, it is determined that the airtightness of the enclosure 10 has failed.

[0057] According to some embodiments of this application, such as Figure 3 As shown, the sound generating unit includes multiple sound source modules 80, all of which are installed on the door 101 to be tested inside the housing 10, and the multiple sound source modules 80 can form an equal sound pressure field in the detection area of ​​the door 101 to be tested.

[0058] This embodiment may include five or six sound source modules 80, but no limitation is made here.

[0059] refer to Figure 3 As shown, taking five sound source modules 80 as an example, one sound source module 80 is located at the center of the door 101 to be tested, and the other four sound source modules 80 are evenly distributed at the four corners of the door 101 to be tested. The gap between the sound source modules 80 located around and the edge of the door 101 to be tested can be 3cm-5cm.

[0060] During use, by uniformly adjusting the output parameters of each sound source module 80, the ultrasonic signals of each sound source module 80 can be superimposed to form a uniform sound field; at the same time, the transmission frequency of each sound source module 80 is 40kHz.

[0061] Because the initial ultrasonic sound pressure intensity varies in different areas of the door under test—that is, areas with high sound pressure will produce a strong leakage signal even for minor leaks, while areas with low sound pressure may show a leakage signal intensity below the threshold even for obvious leaks, leading to missed detections—a uniform sound pressure field can ensure that the initial ultrasonic sound pressure amplitude of the areas under test on the door remains consistent. This provides a unified benchmark for leak detection at different locations, avoiding misjudgments and missed detections caused by benchmark differences, thereby improving the accuracy of the detection.

[0062] According to some embodiments of this application, such as Figure 1 or Figure 2 As shown, the detection unit 30 includes a signal acquisition unit 301 and a control and data processing module 302. The signal acquisition unit 301 is electrically connected to the control and data processing module 302. The signal acquisition unit 301 is configured to acquire ultrasonic audio parameters generated by the housing 10, and / or, the signal acquisition unit 301 is configured to acquire visual signals from the housing 10. The control and data processing module 302 is configured to compare the ultrasonic audio parameters with preset parameters.

[0063] In this embodiment, the signal acquisition device 301 can be an ultrasonic sensor and an industrial camera. In use, an ultrasonic sensor is used, and its operating frequency is matched with the emission frequency of the ultrasonic source inside the housing 10. When there is a leak in the housing 10, the internal ultrasonic signal will radiate from the leak point to the outside. The piezoelectric element of the ultrasonic sensor can generate a corresponding electrical signal when excited by the ultrasonic signal.

[0064] The images of each surface of the housing 10 are captured frame by frame by an industrial camera and then converted into corresponding analog electrical signals.

[0065] In this embodiment, the control and data processing module 302 can be a host computer, which receives acoustic data, visual data and corresponding spatial coordinate information sent by the signal acquisition unit 301 through the communication interface. The host computer will then match the received acoustic signals with the visual images one by one.

[0066] Subsequently, the host computer compares the received ultrasonic audio parameters with preset parameters. If the ultrasonic audio parameters are greater than the preset parameters, they are marked as acoustic anomalies. At the same time, the host computer analyzes the images of various surfaces of the enclosure 10 using image recognition algorithms to determine whether there are structural anomalies such as gaps or deformations.

[0067] In this way, the signal acquisition unit 301 collects the corresponding ultrasonic audio parameters and sends them to the control and data processing module 302. The control and data processing module 302 then compares the received ultrasonic audio parameters with preset parameters to quickly determine whether the airtightness of the enclosure 10 has failed. At the same time, the control and data processing module 302 can identify the location of the failure based on the corresponding visual signals.

[0068] According to some embodiments of this application, such as Figure 1 or Figure 2 As shown, the airtightness testing system also includes a mobile support unit 50, which is connected to the signal acquisition unit 301 and is configured to move the signal acquisition unit 301.

[0069] In this embodiment, the mobile support unit 50 can be a robotic arm, a multi-degree-of-freedom robot, etc., and is not limited here.

[0070] In use, the signal acquisition unit 301 is moved by the moving support unit 50 in order to collect signals from different areas.

[0071] According to some embodiments of this application, such as Figure 1 or Figure 2 As shown, the airtightness testing system also includes a visual calibration unit 60, which is adapted to the mobile carrier unit 50 and configured to acquire motion trajectory images of the mobile carrier unit 50 and transmit the trajectory image data to the control and data processing module 302.

[0072] The visual calibration unit 60 in this embodiment can be an industrial camera, etc., and is not limited here.

[0073] The visual calibration unit 60 detects the actual movement trajectory of the mobile carrier unit 50 in real time and sends the actual movement trajectory to the control and data processing module 302. The control and data processing module 302 compares the actual movement trajectory with the preset trajectory and dynamically corrects the trajectory deviation to ensure that the mobile carrier unit 50 strictly follows the planned path to drive the signal acquisition unit 301 to move. This ensures that the signal acquisition unit 301 can cover the detection position point by point and area by area, eliminate detection blind spots, and adapt to the needs of grid-based detection.

[0074] According to some embodiments of this application, such as Figure 1 or Figure 2 As shown, the airtightness testing system also includes a positioning calibration unit 70, which is adapted to the mobile carrier unit 50 and configured to acquire the position information of the mobile carrier unit 50 and transmit it to the control and data processing module 302.

[0075] In this embodiment, the positioning calibration unit 70 can be a GPS, laser positioning sensor, etc., and there is no limitation here.

[0076] During use, the absolute spatial position information of the mobile support unit 50 and the signal acquisition unit 301 is acquired in real time through the positioning calibration unit 70. This corrects accumulated positioning errors and ensures accurate position coordinates within the detection space. Consequently, the signal acquisition unit 301 can accurately dock at the corresponding position of each grid cell in the gridded view, guaranteeing that the sound pressure signal and visual signal acquisition positions at each sampling point are consistent with the preset coordinates, thus avoiding data distortion caused by positional deviations. Simultaneously, the mobile support unit 50 is prone to accumulating positioning errors during long-term reciprocating motion; the positioning calibration can correct these errors in real time, ensuring the stability of detection accuracy throughout the entire process.

[0077] According to some embodiments of this application, such as Figure 1 and combined Figure 4 As shown, the airtightness testing system also includes a pressure detection module 40, which is electrically connected to the control and data processing module 302; the pressure detection module 40 is located outside the housing 10, and / or, the pressure detection module 40 is located inside the housing 10.

[0078] In this embodiment, the pressure detection module 40 can be a pressure sensor or the like, and is not limited here.

[0079] refer to Figure 4 As shown, in this embodiment, the pressure detection module 40 can be set separately outside the housing 10, or the pressure detection module 40 can be set separately inside the housing 10, or the pressure detection module 40 can be set not only outside the housing 10, but also inside the housing 10.

[0080] In this embodiment, a pressure detection module 40 is provided on the housing 10 to facilitate the detection of the pressure inside the housing 10 and prevent it from being damaged due to excessive pressure during inflation.

[0081] According to some embodiments of this application, the detection unit 30 further includes a display module, which is electrically connected to the control and data processing module 302.

[0082] The display module in this embodiment can be a monitor or the like, and is not limited here.

[0083] When in use, the control and data processing module 302 can send the judgment result to the display module. The display module can display the failure location on the corresponding gridded view through highlighting, annotation or color differentiation, so as to facilitate the operator's viewing.

[0084] According to some embodiments of this application, the detection unit 30 further includes an alarm module, which is electrically connected to the control and data processing module 302.

[0085] The alarm module in this embodiment can be an audible and visual alarm, a voice alarm, etc., and is not limited here.

[0086] When a problem is detected during use, the alarm module can be activated via the control and data processing module 302 to alert the operator.

[0087] This application also provides an airtightness testing method, applicable to the airtightness testing system as described in any of the embodiments of this application, such as... Figure 5 As shown, the method includes: Step 110: Ultrasound is generated inside the enclosure by the sound generating unit; Step 120: Acquire audio parameters and visual signals around the enclosure; Step 130: Compare the audio parameters with the preset parameters. If the audio parameters are greater than the preset parameters, it is determined that the airtightness of the enclosure has failed and the failure location is marked according to the visual signal.

[0088] In this embodiment, the sound generating unit can be either the inflation unit 20 or the sound source module 80 described above, and no limitation is made here. During use, the sound generating unit collects corresponding ultrasonic audio parameters and visual signals, and transmits both types of data to the host computer via a real-time transmission system. The host computer integrates the corresponding ultrasonic audio parameters and visual signals one by one, providing complete information for subsequent leak analysis and judgment.

[0089] The detection path in this embodiment can be used as a reference, such as... Figure 3 As shown, firstly, the top edge seam of the door 101 to be inspected is scanned from left to right; then, each vertical edge seam is inspected sequentially from top to bottom; finally, the bottom horizontal edge seam is inspected.

[0090] This sequence conforms to the motion logic of mechanical structures and is also conducive to the system gradually establishing complete detection coverage, avoiding omissions.

[0091] After each stage of the inspection is completed, the system temporarily stores and verifies the data until all seams have been inspected. Once the task is finished, the mobile support unit 50 automatically returns to its initial position and enters standby mode, awaiting the next instruction. The entire process is designed with a balance of systematicity, orderliness, and reliability in mind, ensuring efficient and accurate leakage data acquisition through standardized motion control and signal synchronization mechanisms.

[0092] During the data anomaly detection process, the host computer automatically matches and processes the collected ultrasonic audio parameters and visual signals according to the preset grid division and corresponding anomaly detection logic.

[0093] First, a standardized gridded view of the enclosure has been established in the host computer, with each grid cell associated with specific detection rules and tolerance ranges. The acquired ultrasonic audio parameters and visual signals are transmitted to the host computer in real time and automatically mapped to the corresponding grid cell based on their spatial and feature information, completing the positional matching between data and view. Next, the system calls the preset anomaly detection logic for each grid cell to analyze and compare signals falling into that area, identifying any failures such as leaks or structural anomalies.

[0094] According to some embodiments of this application, audio parameters and visual signals around the enclosure are collected, including: The trajectory and positioning of the detection actuator are calibrated. The calibrated detection actuator synchronously collects audio parameters and visual signals around the enclosure.

[0095] In this embodiment, the trajectory and positioning calibration of the detection actuator can be referred to the description above.

[0096] During the data collection process, to ensure the validity and consistency of the acquired data, the mobile carrier unit must first complete the trajectory and positioning calibration. This calibration step is crucial, as it can avoid duplicate data collection or invalid data due to positioning deviations, thereby improving the overall detection efficiency and accuracy.

[0097] After calibration, the moving carrier unit should strictly follow the preset fixed trajectory and prescribed procedure for movement, with the movement sequence following the principle of "left first, then right; top first, then bottom." This sequential design helps the system gradually cover the area to be inspected and ensures that at each inspection position, the interface to be inspected can stably appear within the center range of the vision system to obtain clear and stable image information.

[0098] According to some embodiments of this application, after marking the failure location, the method further includes: The judgment result and the location of the failure are sent to the display module.

[0099] The display module in this embodiment can be referred to the description above, and will not be repeated here.

[0100] The host computer sends the judgment result and the failure location to the display module. The display module can display the failure location on the corresponding gridded view through highlighting, marking or color differentiation, so as to facilitate the operator's viewing.

[0101] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and they should all be covered within the scope of the claims and specification of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. An airtightness detection system, characterized in that, include: Box; A sound generating unit, the sound generating unit including an inflation unit located outside the housing and connected to the housing, configured to inflate gas into the housing to generate ultrasound; A detection unit is disposed outside the enclosure and configured to detect ultrasonic audio parameters generated by the enclosure.

2. The airtightness detection system according to claim 1, characterized in that, The inflation unit is connected to the housing via an inflation pipe, and a control valve is installed on the inflation pipe.

3. The airtightness detection system according to claim 1, characterized in that, The sound generating unit includes at least one sound source module, which is disposed inside the housing.

4. The airtightness detection system according to claim 3, characterized in that, The sound generating unit includes multiple sound source modules, all of which are disposed on the door to be tested inside the housing, and the multiple sound source modules can form an equal sound pressure field in the detection area of ​​the door to be tested.

5. The airtightness detection system according to any one of claims 1 to 4, characterized in that, The detection unit includes a signal acquisition unit and a control and data processing module, wherein the signal acquisition unit is electrically connected to the control and data processing module; The signal acquisition device is configured to acquire ultrasonic audio parameters generated by the enclosure, and / or the signal acquisition device is configured to acquire visual signals from the enclosure; the control and data processing module is configured to compare the ultrasonic audio parameters with preset parameters.

6. The airtightness detection system according to claim 5, characterized in that, The airtightness detection system also includes a mobile support unit, which is connected to the signal acquisition unit and configured to move the signal acquisition unit.

7. The airtightness detection system according to claim 6, characterized in that, The airtightness detection system also includes a visual calibration unit, which is adapted to the mobile carrier unit and configured to acquire motion trajectory images of the mobile carrier unit and transmit the trajectory image data to the control and data processing module.

8. The airtightness detection system according to claim 6 or 7, characterized in that, The airtightness detection system also includes a positioning calibration unit, which is adapted to the mobile carrier unit and configured to acquire the position information of the mobile carrier unit and transmit it to the control and data processing module.

9. The airtightness detection system according to claim 5, characterized in that, The airtightness detection system also includes a pressure detection module, which is electrically connected to the control and data processing module. The pressure detection module is located outside the enclosure, and / or the pressure detection module is located inside the enclosure.

10. The airtightness detection system according to claim 5, characterized in that, The detection unit also includes a display module, which is electrically connected to the control and data processing module.

11. The airtightness detection system according to claim 5, characterized in that, The detection unit also includes an alarm module, which is electrically connected to the control and data processing module.

12. An airtightness testing method, applied to the airtightness testing system as described in any one of claims 1 to 11, characterized in that, The method includes: Ultrasonic waves are generated inside the enclosure by a sound generating unit; Acquire audio parameters and visual signals around the enclosure; The audio parameter is compared with the preset parameter. If the audio parameter is greater than the preset parameter, the airtightness of the enclosure is determined to be faulty, and the fault location is marked according to the visual signal.

13. The airtightness testing method according to claim 12, characterized in that, The audio parameters and visual signals around the acquisition box include: The trajectory and positioning of the detection actuator are calibrated. The calibrated detection actuator synchronously collects audio parameters and visual signals around the enclosure.

14. The airtightness testing method according to claim 12, characterized in that, After marking the failure location, the method also includes: The judgment result and the location of the failure are sent to the display module.

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