Airtightness inspection device, airtightness inspection method, and program

Abstract

To provide a method for inspecting the degree of airtightness of a terminal on the basis of the way of transition of an atmospheric pressure value inside the terminal.SOLUTION: An acquisition unit configured to acquire a first air pressure value inside the terminal before applying a pressure to the sealed terminal, a second air pressure value inside the terminal at a start time when the pressure is applied to the terminal, a third air pressure value inside the terminal after a first period from the start time, and a fourth air pressure value inside the terminal after a second period longer than the first period from the start time; And a second determination result of whether or not the fourth atmospheric pressure value is equal to or less than an atmospheric pressure value obtained by subtracting a second predetermined value from the second atmospheric pressure value.SELECTED DRAWING: Figure 10

Description

[Technical Field]

[0001] The present invention relates to an airtightness inspection device, an airtightness inspection method, and a program. [Background technology]

[0002] A method is known for testing the airtightness of a smartphone, tablet computer, or the like (hereinafter referred to as a "terminal") by applying pressure to the terminal and testing the difference between the air pressure value inside the terminal and the air pressure value outside the terminal when the pressure is applied (for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 6833024 Summary of the Invention [Problem to be solved by the invention]

[0004] The inspection method described in Patent Document 1 can easily inspect whether a terminal is airtight by determining whether the difference in air pressure between the air pressure value inside the terminal when pressure is applied and the air pressure value outside the terminal is greater than or equal to a predetermined threshold.

[0005] However, the inspection method described in Patent Document 1 determines whether the terminal is airtight based on the air pressure value at the time the pressure is applied, and therefore, depending on the airtightness of the terminal, for example, it may not be possible to accurately inspect whether the terminal is airtight.

[0006] SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a method for inspecting the airtightness of a terminal based on the change in the air pressure value inside the terminal. [Means for solving the problem]

[0007] An airtightness testing device according to one embodiment of the present invention includes an acquisition unit that acquires a first air pressure value inside a sealed terminal before pressure is applied to the terminal, a second air pressure value inside the terminal at the start time of applying pressure to the terminal, a third air pressure value inside the terminal a first period after the start time, and a fourth air pressure value inside the terminal a second period after the start time that is longer than the first period; and a judgment unit that judges the airtightness of the terminal based on a first judgment result that judges whether the third air pressure value is equal to or less than an air pressure value obtained by adding a first predetermined value to the first air pressure value, and a second judgment result that judges whether the fourth air pressure value is equal to or less than an air pressure value obtained by subtracting a second predetermined value from the second air pressure value.

[0008] In addition, an airtightness inspection method according to one embodiment of the present invention includes a computer acquiring a first air pressure value inside a sealed terminal before pressure is applied to the terminal, a second air pressure value inside the terminal at the start time of applying pressure to the terminal, a third air pressure value inside the terminal a first period after the start time, and a fourth air pressure value inside the terminal a second period after the start time that is longer than the first period, and determining the airtightness of the terminal based on a first determination result determining whether the third air pressure value is equal to or less than an air pressure value obtained by adding a first predetermined value to the first air pressure value and a second determination result determining whether the fourth air pressure value is equal to or less than an air pressure value obtained by subtracting a second predetermined value from the second air pressure value.

[0009] In addition, a program according to one embodiment of the present invention causes a computer to acquire a first air pressure value inside a sealed terminal before pressure is applied to the terminal, a second air pressure value inside the terminal at the start time of applying pressure to the terminal, a third air pressure value inside the terminal a first period after the start time, and a fourth air pressure value inside the terminal a second period after the start time that is longer than the first period, and determine the airtightness of the terminal based on a first determination result that determines whether the third air pressure value is equal to or less than an air pressure value obtained by adding a first predetermined value to the first air pressure value, and a second determination result that determines whether the fourth air pressure value is equal to or less than an air pressure value obtained by subtracting a second predetermined value from the second air pressure value. [Effects of the Invention]

[0010] According to the present invention, it is possible to provide a method for inspecting the degree of airtightness of a terminal based on the change in the air pressure value inside the terminal. [Brief explanation of the drawings]

[0011] [Figure 1] 1 is a diagram showing an example of the configuration of a system for performing an airtightness inspection according to an embodiment of the present invention. [Figure 2] FIG. 1 is a diagram showing an outline of a flow of an airtightness inspection according to an embodiment of the present invention. [Figure 3] FIG. 10 is a diagram showing an example of the transition of air pressure values ​​for determining the degree of airtightness. [Figure 4] FIG. 2 is a diagram illustrating an example of a functional configuration of an inspection device 10. [Figure 5] 10 is a diagram showing an example of the air pressure value a inside the terminal 20 that changes during an airtightness test. FIG. [Figure 6] 10 is a diagram showing a transition pattern of the atmospheric pressure value inside the terminal 20. FIG. [Figure 7] FIG. 10 is a diagram showing a judgment table T121 showing the relationship between the first judgment, the second judgment, and the final judgment. [Figure 8] FIG. 10 is a diagram showing a judgment table T122 indicating the relationship between the first judgment, the second judgment, and the final judgment. [Figure 9] FIG. 2 is a diagram illustrating an example of a functional configuration of a terminal 20. [Figure 10] FIG. 10 is a sequence diagram illustrating an example of a processing procedure in an airtightness inspection. [Figure 11] FIG. 1 illustrates an example of a hardware configuration of a computer 1000. DETAILED DESCRIPTION OF THE INVENTION

[0012] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described with reference to the accompanying drawings, in which the same reference numerals denote the same or similar components. <Configuration overview>

[0013] FIG. 1 is a diagram showing an example of the system configuration of a system for performing airtightness testing according to one embodiment of the present invention (hereinafter referred to as "airtightness testing system 1").

[0014] The airtightness inspection system 1 shown in FIG. 1 includes an inspection device 10 that performs airtightness inspections and a terminal 20 that is the target of the airtightness inspection. The inspection device 10 and the terminal 20 may be communicatively connected to each other via a communication network such as the Internet, an intranet, a wireless LAN, or mobile communications. For convenience of illustration, one inspection device 10 and one terminal 20 are shown, but the airtightness inspection system 1 may be configured to include multiple inspection devices 10 and multiple terminals 20. Note that, in the present invention, the term "unit" does not simply mean a physical means but also includes cases where the functions of the "unit" are realized by software. Furthermore, the functions of one "unit" or device may be realized by two or more physical means or devices, or the functions of two or more "units" or devices may be realized by one physical means or device. Note that the terminal 20 may itself execute the processing performed by the inspection device 10. For example, an application that performs the processing according to this embodiment may be installed on the terminal 20, allowing the terminal 20 to execute the processing according to this embodiment. The inspection device 10 and the terminal 20 are an example of an airtightness inspection device. The airtightness inspection device may also be called an information processing device.

[0015] The inspection device 10 is, for example, a device that acquires the air pressure value inside the terminal 20 whose airtightness is to be inspected. The inspection device 10 is also, for example, a device that determines the level of airtightness of the terminal 20 based on information indicating the air pressure value inside the terminal 20 to which pressure has been applied. The inspection device 10 is, for example, a mobile phone, a smartphone, a tablet computer, a personal computer, or the like. Alternatively, the inspection device 10 may be a portable, pocket-sized, handheld, or computer-embedded mobile device that exchanges data with a wireless access network.

[0016] The terminal 20 is a terminal that is the subject of an airtightness test. The terminal 20 is assumed to be an electronic device such as a mobile phone, a computer with a mobile terminal, a smartphone, or a tablet computer, but is not limited to these, and may include, for example, a wearable device that can be the subject of an airtightness test, such as a smart watch or smart glasses.

[0017] Airtightness is an evaluation standard that indicates, for example, how many gaps there are in a terminal that allow air to pass through. Generally, the waterproof function of a terminal (including everyday waterproofing and complete waterproofing) is achieved when the terminal is sealed and airtight. A terminal with a certain amount of gaps or more is not sealed, and can be evaluated as not being airtight and not having waterproofing (including having lost it).

[0018] The airtightness test may include what is called an "air leak test." For example, after a device with complete waterproofing or water resistance for daily use breaks down and is repaired, an airtightness test is performed on the device. This allows the quality of the device's airtightness to be confirmed.

[0019] <Test Overview> Here, an outline of the flow of an airtightness inspection according to one embodiment of the present invention will be described with reference to FIG.

[0020] First, prepare the terminal 20 to be subjected to the airtightness test (step S1). It is desirable to keep the terminal 20 in a sealed state. For example, in the case of a smartphone, sealing may be achieved by closing the tray for a SIM (Subscriber Identity Module) card or by masking the speaker area.

[0021] Next, measurement of the air pressure value inside the terminal 20 is started (step S2). The inspection device 10 acquires, for example, information indicating the air pressure value inside the terminal 20 from the terminal 20. Note that the inspection device 10 may continue acquiring the air pressure value from step S3 to step S4 described later.

[0022] Next, pressure is applied to the terminal 20 and the pressurized state is maintained (step S3). For example, pressure may be applied by placing a weight W on the terminal 20. Alternatively, pressure may be applied by directly pressing against the surface of the terminal 20.

[0023] Next, the atmospheric pressure value inside the terminal 20 is measured for a predetermined time (step S4).

[0024] Then, based on the air pressure value inside the terminal 20 measured at the predetermined time, the degree of airtightness of the terminal 20 is determined (step S5).

[0025] Note that step S2 may be a step of maintaining the pressure on terminal 20 and then starting to measure the air pressure value inside terminal 20. Also, step S3 may be a step of removing weight W and releasing the pressure on terminal 20. That is, an airtightness inspection method according to one embodiment of the present invention may be a flow in which the pressure applied to terminal 20 is maintained and the level of airtightness is determined based on the air pressure value inside terminal 20 that changes over a predetermined time period (hereinafter referred to as "measurement method 1"), or a flow in which the pressure applied to terminal 20 is released and the level of airtightness is determined based on the air pressure value inside terminal 20 that changes over a predetermined time period (hereinafter referred to as "measurement method 2").

[0026] The transition of the air pressure value for determining the degree of airtightness will be described with reference to Fig. 3. Graphs G1 to G6 in Fig. 3 respectively show the transition patterns of the air pressure value a indicated by the degree of airtightness of terminal 20. In each graph, the flow of time is indicated by t. The timing at which pressure is applied to terminal 20 is designated ts1, and the timing at which pressure is released from terminal 20 is designated ts2.

[0027] The degree of airtightness may be determined in three stages, for example, "normal", "small leak (less airtight than normal)", and "large leak (less airtight than small leak)".

[0028] "Normal" is the judgment result when airtightness is ensured. For example, a terminal judged as "normal" can be said to have no problems with airtightness. A terminal judged as "normal" has no gaps, and air does not enter or leave due to changes in pressure. Therefore, when pressurizing terminal 20 according to measurement method 1, the air pressure value a inside terminal 20 remains elevated (G1 in FIG. 3). Also, when the pressure applied to terminal 20 is released according to measurement method 2, the air pressure value a remains depressed (G4 in FIG. 3).

[0029] A "small leak" is a judgment result that indicates a lower level of airtightness than "normal" but a higher level of airtightness than "large leak." A "small leak" indicates a state in which a minute gap has occurred in the terminal, and indicates, for example, that the terminal's everyday waterproof function (waterproof against water droplets and light rain, etc.) is guaranteed, but complete waterproof function (waterproof for use underwater, etc.) is lost. A terminal judged to have a "small leak" has a small gap, and, for example, air gradually enters and leaves the terminal due to pressure. Therefore, when pressurizing the terminal 20 according to measurement method 1, the air pressure value a inside the terminal 20 rises when pressurized, but gradually returns to normal over time (G2 in FIG. 3). Furthermore, when releasing the pressure applied to the terminal 20 according to measurement method 2, the air pressure value a decreases when released, but gradually returns to normal over time (G5 in FIG. 3).

[0030] "Major leak" is a judgment result when the airtightness is lower than "minor leak." "Major leak" indicates that a gap has appeared in the terminal, and the terminal's waterproof function is barely functioning. A terminal judged to have a "major leak" will, for example, allow a lot of air to enter and leave due to pressure. When pressurizing terminal 20 according to measurement method 1, the air pressure value a inside terminal 20 will return to its original value immediately after pressurization (G3 in Figure 3). Also, when releasing the pressure applied to terminal 20 according to measurement method 2, the air pressure value a will return to its original value immediately after release (G6 in Figure 3).

[0031] <Functional configuration> (Inspection equipment) The inspection device 10 will now be described. Fig. 4 is a diagram showing an example of the functional configuration of the inspection device 10. The inspection device 10 includes an acquisition unit 101, a determination unit 102, and a storage unit 103. Each of these means is realized, for example, by a processor 1001 executing a program stored in a storage device 1002 shown in Fig. 11.

[0032] The acquisition unit 101 is a functional unit that acquires information indicating the atmospheric pressure value inside the terminal 20. For example, the acquisition unit 101 may acquire information on the atmospheric pressure value inside the terminal 20 detected by a sensor included in the terminal 20, or may acquire information on the atmospheric pressure value inside the terminal 20 measured by an external device (not shown) that measures the atmospheric pressure value.

[0033] 5 is a diagram showing an example of the air pressure value a inside the terminal 20 that changes during an airtightness test according to one embodiment of the present invention. In Fig. 5, pa1 indicates the case where pressure is applied to the terminal 20 (measurement method 1), and pa2 indicates the case where pressure is released from the terminal 20 (measurement method 2). In pa1 and pa2, t indicates the flow of time.

[0034] The acquisition unit 101 acquires information indicating, for example, an air pressure value a11 inside the terminal 20 before pressure is applied to the terminal 20 (hereinafter referred to as a "first air pressure value").

[0035] The first air pressure value may be an air pressure value a12 inside the terminal 20 before the pressure applied to the terminal 20 is released, as indicated by pa2 in FIG.

[0036] The acquisition unit 101 also acquires information indicating an air pressure value a21 inside the terminal 20 when pressure is applied to the terminal 20 (hereinafter referred to as a "second air pressure value").

[0037] The second air pressure value may be an air pressure value a22 inside the terminal 20 when the pressure is released from the terminal 20, as indicated by pa2 in FIG.

[0038] The time ts1 during which pressure is applied to the terminal 20 and the time ts2 during which pressure is released from the terminal 20 are collectively referred to as the "start time." The air pressure value a21 may be, for example, the maximum air pressure value inside the terminal 20 after pressure is applied to the terminal 20. The air pressure value a22 may be, for example, the minimum air pressure value inside the terminal 20 after pressure is released from the terminal 20.

[0039] The acquisition unit 101 acquires, for example, information indicating the atmospheric pressure values ​​a31 and a32 (hereinafter collectively referred to as "third atmospheric pressure values") inside the terminal 20 at times (t11 and t12) when a first period (hereinafter referred to as "first period") has elapsed since the start time. The acquisition unit 101 also acquires, for example, information indicating the atmospheric pressure values ​​a41 and a42 (hereinafter collectively referred to as "fourth atmospheric pressure values") inside the terminal 20 at times (t21 and t22) when a period longer than the first period (hereinafter referred to as "second period") has elapsed after the start time.

[0040] The first period may be, for example, 3 seconds from the start time. The second period may be, for example, 10 seconds from the start time. The lengths of the first and second periods may be changed depending on the type of terminal to be inspected, the weight of the weight used, etc.

[0041] The determining unit 102 is a functional unit that determines the airtightness of the terminal 20 based on the information indicating the first to fourth atmospheric pressure values ​​acquired by the acquiring unit 101.

[0042] The determination unit 102 determines the airtightness based on the third air pressure value at the time when the first period has elapsed (hereinafter referred to as the "first determination"), and determines the airtightness based on the fourth air pressure value at the time when the second period has elapsed (hereinafter referred to as the "second determination"). The determination unit 102 determines the degree of airtightness of the terminal 20 based on the results of the first determination and the second determination (hereinafter referred to as the "final determination").

[0043] The first, second, and final judgments will be described with reference to Fig. 6. Fig. 6 is a diagram showing the transition pattern of the air pressure value inside the terminal 20. The case where pressure is applied to the terminal 20 (measurement method 1) is indicated by pa1, and the case where pressure is released from the terminal 20 (measurement method 2) is indicated by pa2.

[0044] The first determination may be, for example, according to Measurement Method 1, determining whether the third atmospheric pressure value a31 is equal to or less than the atmospheric pressure value ath11 obtained by adding a first predetermined value to the first atmospheric pressure value a11 (pa1 in FIG. 6). Alternatively, the first determination may be according to Measurement Method 2, determining whether the third atmospheric pressure value a32 is equal to or greater than the atmospheric pressure value ath12 obtained by subtracting the first predetermined value from the first atmospheric pressure value a12 (pa2 in FIG. 6).

[0045] The first predetermined value is assumed to be, for example, 2 hPa (hectopascals), but the value may be changed depending on the criteria for determining airtightness. The first predetermined value may also be a predetermined percentage of the first atmospheric pressure value or the second atmospheric pressure value, or a predetermined percentage of the difference between the first atmospheric pressure value and the second atmospheric pressure value. In other words, the first predetermined value may be a value calculated by a first function that uses the first atmospheric pressure value and / or the second atmospheric pressure value as variables.

[0046] The second determination may be, for example, according to Measurement Method 1, determining whether the fourth atmospheric pressure value a41 is equal to or less than the atmospheric pressure value ath21 obtained by subtracting a second predetermined value from the second atmospheric pressure value a21 (pa1 in FIG. 6). Alternatively, the second determination may be according to Measurement Method 2, determining whether the fourth atmospheric pressure value a42 is equal to or greater than the atmospheric pressure value ath22 obtained by adding a second predetermined value to the second atmospheric pressure value a22 (pa2 in FIG. 6).

[0047] The second predetermined value is assumed to be, for example, 2 hPa (hectopascals), but the value may be changed depending on the criteria for determining airtightness. The second predetermined value may also be a predetermined percentage of the first atmospheric pressure value or the second atmospheric pressure value, or a predetermined percentage of the difference between the first atmospheric pressure value and the second atmospheric pressure value. In other words, the second predetermined value may be a value calculated by a second function that uses the first atmospheric pressure value and / or the second atmospheric pressure value as variables.

[0048] The final determination is a determination that determines the degree of airtightness of the terminal 20 based on the results of the first determination and the second determination.

[0049] The judgment unit 102 may make each judgment by, for example, referring to table information indicating the relationship between the first judgment, the second judgment, and the final judgment. Fig. 7 is a diagram showing an example of a judgment table T121 indicating the relationship between the first judgment, the second judgment, and the final judgment when each judgment is made according to measurement method 1. Fig. 8 is a diagram showing an example of a judgment table T122 indicating the relationship between the first judgment, the second judgment, and the final judgment when each judgment is made according to measurement method 2. The judgment table T121 and the judgment table T122 may be stored in, for example, the storage unit 103 described below, or may be stored in another external device (not shown).

[0050] The determination unit 102 refers to the determination table T121 shown in FIG. 7 according to, for example, measurement method 1. For example, if the result of the first determination is that the air pressure value a31 is equal to or less than the air pressure value ath11, the determination unit 102 may make a final determination that the airtightness is a "major leak" (row C1 of the determination table T121). If the result of the first determination is that the third air pressure value a31 is not equal to or less than the air pressure value ath11 and the result of the second determination is equal to or less than the air pressure value ath21, the determination unit 102 makes a final determination that the airtightness is a "minor leak" (row C2 of the determination table T121). If the result of the first determination is that the third air pressure value a31 is not equal to or less than the air pressure value ath11 and the fourth air pressure value a41 is not equal to or less than the air pressure value ath21, the determination unit 102 makes a final determination that the airtightness is "normal" (row C3 of the determination table T121).

[0051] 8 in accordance with measurement method 2. For example, if the result of the first determination is that the air pressure value a32 is equal to or greater than the air pressure value ath12, the determination unit 102 may make a final determination that the airtightness is a "major leak" (row C4 of the determination table T122). If the result of the first determination is that the third air pressure value a32 is not equal to or greater than the air pressure value ath12 and the result of the second determination is equal to or greater than the air pressure value ath22, the determination unit 102 makes a final determination that the airtightness is a "minor leak" (row C5 of the determination table T122). If the result of the first determination is that the third air pressure value a32 is not equal to or greater than the air pressure value ath12 and the fourth air pressure value is not equal to or greater than the air pressure value ath22, the determination unit 102 makes a final determination that the airtightness is "normal" (row C6 of the determination table T122).

[0052] The storage unit 103 stores various information. For example, the data of each content of the above-mentioned determination table T121 and determination table T122 is stored in the determination table T121 and determination table T122. The storage unit 103 may also store configurable information for performing an airtightness test. The configurable information may include information indicating a first period, a second period, a predetermined value to be added to the air pressure value a1, and a predetermined value to be subtracted from the air pressure value a2.

[0053] (Terminal) The terminal 20 will be described below. Fig. 9 is a diagram showing an example of the functional configuration of the terminal 20. The terminal 20 includes a communication unit 201, a UI (User Interface) unit 202, and a control unit 203. Each of these functions is realized, for example, by a processor 1001 executing a program stored in a storage device 1002 shown in Fig. 11.

[0054] The communication unit 201 has a function of performing various communications with the inspection device 10 using the communication IF 1006 in Fig. 11. For example, the communication unit 201 performs communication to transmit information on the air pressure value inside the terminal 20 to the inspection device.

[0055] The UI unit 202 has a function of receiving various inputs from the operator of the terminal 20 and outputting various screens to the display. For example, the UI unit 202 receives operational inputs from the operator in order to execute a process of acquiring the air pressure value inside the terminal 20 in a pressurized state.

[0056] <Processing Procedure> The processing procedure executed in the airtightness test according to one embodiment of the present invention will be described with reference to Fig. 10. Fig. 10 is a sequence diagram showing an example of the processing procedure in the airtightness test.

[0057] First, the inspection device 10 starts acquiring information indicating the air pressure value inside the terminal 20 that is the target of the airtightness inspection (step S100).

[0058] Next, pressure is applied to the terminal 20 (step S101). For example, pressure may be applied by placing a weight on the terminal 20. Alternatively, pressure may be applied by directly pressing against the surface of the terminal 20. This maintains the pressure applied to the terminal 20, so that information on the changing air pressure value inside the terminal 20 can be obtained for a predetermined time after the pressure is applied.

[0059] Note that step S101 may be a step of releasing pressure after applying pressure to terminal 20. This makes it possible to acquire information on the atmospheric pressure value inside terminal 20 that changes over a predetermined time period after the pressure on terminal 20 is released.

[0060] Next, the inspection device 10 acquires information on the air pressure value (a11 or a12) inside the terminal 20 from the start time (ts1 or ts2) to the point in time (t21 or t22) when the first period and the second period have elapsed (step S102).

[0061] Next, the inspection device 10 performs a first determination based on information about the air pressure value inside the terminal 20 at the time point (t11 or t12) when the first period has elapsed (step S103).

[0062] Next, the inspection device 10 performs a second determination based on information about the air pressure value inside the terminal 20 at the time point (t21 or t22) when the second period has elapsed (step S104).

[0063] Finally, the inspection device 10 makes a final judgment based on the results of the first judgment and the second judgment (step S105). In this way, information on the air pressure value inside the target terminal, which changes depending on the increase or decrease in pressure, can be obtained, and the degree of airtightness of the terminal can be judged based on the obtained information. As a result, for example, if a terminal is judged to be airtight in the first judgment and then judged not to be airtight in the second judgment, it can be finally judged that the terminal is not completely airtight due to the presence of fine gaps, although not as large as those of a "major leak," and is in a "minor leak" state.

[0064] <Hardware configuration> 11 is a diagram showing an example of the hardware configuration of the inspection device 10 and the terminal 20. The inspection device 10 and the terminal 20 each include a processor 1001 such as a CPU (Central Processing Unit) or a GPU (Graphical Processing Unit), a storage device 1002 such as a memory, an HDD (Hard Disk Drive) and / or an SSD (Solid State Drive), a communication IF (Interface) 1003 for wired or wireless communication, an input device 1004 for accepting input operations, and an output device 1005 for outputting information. The input device 14 is, for example, a keyboard, a touch panel, a mouse, and / or a microphone. The output device 1005 is, for example, a display, a touch panel, and / or a speaker.

[0065] <Summary> According to the embodiment described above, the inspection device 10 acquires information on the air pressure value inside the terminal 20, for example, a predetermined time after pressure is applied to the terminal 20 (or a predetermined time after the terminal 20 is released from the pressure), and determines the degree of airtightness of the terminal 20 based on how the air pressure value changes over the predetermined period. The determination is made once a first period has elapsed and once a second period has elapsed, and a final determination is made on the degree of airtightness of the terminal 20 based on the results of each determination. This makes it possible to provide a mechanism that can determine the airtightness of the terminal 20 based on how the air pressure value changes, and can inspect the degree of airtightness of the terminal, which may be difficult to determine depending on the state of the terminal.

[0066] The above-described embodiments are intended to facilitate understanding of the present invention and are not intended to limit the present invention. The flowcharts, sequences, elements included in the embodiments, as well as their arrangements, materials, conditions, shapes, sizes, etc., are not limited to those exemplified and may be modified as appropriate. [Explanation of symbols]

[0067] 1...Airtightness inspection system, 10...Inspection device, 20...Terminal, 101...Acquisition unit, 102...Determination unit, 103...Memory unit, 201...Communication unit, 202...UI unit, 203...Control unit, 1001...Processor, 1002...Storage device, 1003...Communication IF, 1004...Input device, 1005...Output device

Claims

1. an acquisition unit that acquires a first atmospheric pressure value inside the sealed terminal before pressure is applied to the terminal, a second atmospheric pressure value inside the terminal at a start time of applying pressure to the terminal, a third atmospheric pressure value inside the terminal after a first period from the start time, and a fourth atmospheric pressure value inside the terminal after a second period from the start time that is longer than the first period; a determination unit that determines airtightness of the terminal based on a first determination result that determines whether the third air pressure value is equal to or less than an air pressure value obtained by adding a first predetermined value to the first air pressure value, and a second determination result that determines whether the fourth air pressure value is equal to or less than an air pressure value obtained by subtracting a second predetermined value from the second air pressure value; An airtightness inspection device having the above structure.

2. The determination unit If the first determination result indicates that the third air pressure value is not equal to or less than the air pressure value obtained by adding the first predetermined value to the first air pressure value, and if the second determination result indicates that the fourth air pressure value is not equal to or less than the air pressure value obtained by subtracting the second predetermined value from the second air pressure value, determine that the airtightness of the terminal is normal; When the first determination result is that the third air pressure value is equal to or less than the air pressure value obtained by adding the first predetermined value to the first air pressure value, it is determined that the airtightness of the terminal is in a first state; If the first determination result indicates that the third air pressure value is not equal to or less than the air pressure value obtained by adding the first predetermined value to the first air pressure value, and if the second determination result indicates that the fourth air pressure value is equal to or less than the air pressure value obtained by subtracting the second predetermined value from the second air pressure value, determine that the airtightness of the terminal is in a second state; the second state indicates that the airtightness of the terminal is lower than normal, The first state indicates that the terminal is less airtight than the second state. The airtightness inspection device according to claim 1 .

3. an acquisition unit that acquires a first atmospheric pressure value inside the sealed terminal when pressure is applied to the terminal, a second atmospheric pressure value inside the terminal at a start time when the pressure is released from the terminal, a third atmospheric pressure value inside the terminal after a first period from the start time, and a fourth atmospheric pressure value inside the terminal after a second period from the start time that is longer than the first period; a determination unit that determines airtightness of the terminal based on a first determination result that determines whether the third air pressure value is equal to or greater than an air pressure value obtained by subtracting a first predetermined value from the first air pressure value, and a second determination result that determines whether the fourth air pressure value is equal to or greater than an air pressure value obtained by adding a second predetermined value to the second air pressure value; An airtightness inspection device having the above structure.

4. The computer obtaining a first air pressure value inside the sealed terminal before applying pressure to the terminal, a second air pressure value inside the terminal at a start time of applying pressure to the terminal, a third air pressure value inside the terminal after a first period from the start time, and a fourth air pressure value inside the terminal after a second period from the start time that is longer than the first period; determining airtightness of the terminal based on a first determination result of whether the third air pressure value is equal to or less than an air pressure value obtained by adding a first predetermined value to the first air pressure value, and a second determination result of whether the fourth air pressure value is equal to or less than an air pressure value obtained by subtracting a second predetermined value from the second air pressure value; Perform airtightness testing method.

5. On the computer, obtaining a first air pressure value inside the sealed terminal before applying pressure to the terminal, a second air pressure value inside the terminal at a start time of applying pressure to the terminal, a third air pressure value inside the terminal after a first period from the start time, and a fourth air pressure value inside the terminal after a second period from the start time that is longer than the first period; determining airtightness of the terminal based on a first determination result of whether the third air pressure value is equal to or less than an air pressure value obtained by adding a first predetermined value to the first air pressure value, and a second determination result of whether the fourth air pressure value is equal to or less than an air pressure value obtained by subtracting a second predetermined value from the second air pressure value; A program that executes the following.

Images